mssqlserver超级班助类 带详细用法

using System;
using System.Collections;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

public abstract class DbHelperSQL
{
    //数据库连接字符串(web.config来配置)，可以动态更改connectionString支持多数据库.
    public static string connectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
    public DbHelperSQL() { }

    #region 公用方法
    /// <summary>
    /// 判断是否存在某表的某个字段
    /// </summary>
    /// <param name="tableName">表名称</param>
    /// <param name="columnName">列名称</param>
    /// <returns>是否存在</returns>
    public static bool ColumnExists(string tableName, string columnName)
    {
        string sql = "select count(1) from syscolumns where [id]=object_id('" + tableName + "') and [name]='" + columnName + "'";
        object res = GetSingle(sql);
        if (res == null)
        {
            return false;
        }
        return Convert.ToInt32(res) > ;
    }
    public static int GetMinID(string FieldName, string TableName)
    {
        string strsql = "select min(" + FieldName + ") from " + TableName;
        object obj = DbHelperSQL.GetSingle(strsql);
        if (obj == null)
        {
            return ;
        }
        else
        {
            return int.Parse(obj.ToString());
        }
    }
    public static int GetMaxID(string FieldName, string TableName)
    {
        string strsql = "select max(" + FieldName + ")+1 from " + TableName;
        object obj = DbHelperSQL.GetSingle(strsql);
        if (obj == null)
        {
            return ;
        }
        else
        {
            return int.Parse(obj.ToString());
        }
    }
    public static bool Exists(string strSql)
    {
        object obj = DbHelperSQL.GetSingle(strSql);
        int cmdresult;
        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
        {
            cmdresult = ;
        }
        else
        {
            cmdresult = int.Parse(obj.ToString());
        }
        if (cmdresult == )
        {
            return false;
        }
        else
        {
            return true;
        }
    }
    /// <summary>
    /// 表是否存在
    /// </summary>
    /// <param name="TableName"></param>
    /// <returns></returns>
    public static bool TabExists(string TableName)
    {
        string strsql = "select count(*) from sysobjects where id = object_id(N'[" + TableName + "]') and OBJECTPROPERTY(id, N'IsUserTable') = 1";
        //string strsql = "SELECT count(*) FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[" + TableName + "]') AND type in (N'U')";
        object obj = DbHelperSQL.GetSingle(strsql);
        int cmdresult;
        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
        {
            cmdresult = ;
        }
        else
        {
            cmdresult = int.Parse(obj.ToString());
        }
        if (cmdresult == )
        {
            return false;
        }
        else
        {
            return true;
        }
    }
    public static bool Exists(string strSql, params SqlParameter[] cmdParms)
    {
        object obj = DbHelperSQL.GetSingle(strSql, cmdParms);
        int cmdresult;
        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
        {
            cmdresult = ;
        }
        else
        {
            cmdresult = int.Parse(obj.ToString());
        }
        if (cmdresult == )
        {
            return false;
        }
        else
        {
            return true;
        }
    }
    #endregion

    #region  执行简单SQL语句

    /// <summary>
    /// 执行SQL语句，返回影响的记录数
    /// </summary>
    /// <param name="SQLString">SQL语句</param>
    /// <returns>影响的记录数</returns>
    public static int ExecuteSql(string SQLString)
    {
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            using (SqlCommand cmd = new SqlCommand(SQLString, connection))
            {
                try
                {
                    connection.Open();
                    int rows = cmd.ExecuteNonQuery();
                    return rows;
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    connection.Close();
                    throw e;
                }
            }
        }
    }

    /// <summary>
    /// 2012-2-21新增重载，执行SQL语句，返回影响的记录数
    /// </summary>
    /// <param name="connection">SqlConnection对象</param>
    /// <param name="trans">SqlTransaction事件</param>
    /// <param name="SQLString">SQL语句</param>
    /// <returns>影响的记录数</returns>
    public static int ExecuteSql(SqlConnection connection, SqlTransaction trans, string SQLString)
    {
        using (SqlCommand cmd = new SqlCommand(SQLString, connection))
        {
            try
            {
                cmd.Connection = connection;
                cmd.Transaction = trans;
                int rows = cmd.ExecuteNonQuery();
                return rows;
            }
            catch (System.Data.SqlClient.SqlException e)
            {
                //trans.Rollback();
                throw e;
            }
        }
    }

    public static int ExecuteSqlByTime(string SQLString, int Times)
    {
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            using (SqlCommand cmd = new SqlCommand(SQLString, connection))
            {
                try
                {
                    connection.Open();
                    cmd.CommandTimeout = Times;
                    int rows = cmd.ExecuteNonQuery();
                    return rows;
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    connection.Close();
                    throw e;
                }
            }
        }
    }

    /// <summary>
    /// 执行多条SQL语句，实现数据库事务。
    /// </summary>
    /// <param name="SQLStringList">多条SQL语句</param>
    public static int ExecuteSqlTran(List<String> SQLStringList)
    {
        using (SqlConnection conn = new SqlConnection(connectionString))
        {
            conn.Open();
            SqlCommand cmd = new SqlCommand();
            cmd.Connection = conn;
            SqlTransaction tx = conn.BeginTransaction();
            cmd.Transaction = tx;
            try
            {
                int count = ;
                for (int n = ; n < SQLStringList.Count; n++)
                {
                    string strsql = SQLStringList[n];
                    if (strsql.Trim().Length > )
                    {
                        cmd.CommandText = strsql;
                        count += cmd.ExecuteNonQuery();
                    }
                }
                tx.Commit();
                return count;
            }
            catch
            {
                tx.Rollback();
                return ;
            }
        }
    }
    /// <summary>
    /// 执行带一个存储过程参数的的SQL语句。
    /// </summary>
    /// <param name="SQLString">SQL语句</param>
    /// <param name="content">参数内容,比如一个字段是格式复杂的文章，有特殊符号，可以通过这个方式添加</param>
    /// <returns>影响的记录数</returns>
    public static int ExecuteSql(string SQLString, string content)
    {
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            SqlCommand cmd = new SqlCommand(SQLString, connection);
            System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter("@content", SqlDbType.NText);
            myParameter.Value = content;
            cmd.Parameters.Add(myParameter);
            try
            {
                connection.Open();
                int rows = cmd.ExecuteNonQuery();
                return rows;
            }
            catch (System.Data.SqlClient.SqlException e)
            {
                throw e;
            }
            finally
            {
                cmd.Dispose();
                connection.Close();
            }
        }
    }
    /// <summary>
    /// 执行带一个存储过程参数的的SQL语句。
    /// </summary>
    /// <param name="SQLString">SQL语句</param>
    /// <param name="content">参数内容,比如一个字段是格式复杂的文章，有特殊符号，可以通过这个方式添加</param>
    /// <returns>影响的记录数</returns>
    public static object ExecuteSqlGet(string SQLString, string content)
    {
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            SqlCommand cmd = new SqlCommand(SQLString, connection);
            System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter("@content", SqlDbType.NText);
            myParameter.Value = content;
            cmd.Parameters.Add(myParameter);
            try
            {
                connection.Open();
                object obj = cmd.ExecuteScalar();
                if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                {
                    return null;
                }
                else
                {
                    return obj;
                }
            }
            catch (System.Data.SqlClient.SqlException e)
            {
                throw e;
            }
            finally
            {
                cmd.Dispose();
                connection.Close();
            }
        }
    }
    /// <summary>
    /// 向数据库里插入图像格式的字段(和上面情况类似的另一种实例)
    /// </summary>
    /// <param name="strSQL">SQL语句</param>
    /// <param name="fs">图像字节,数据库的字段类型为image的情况</param>
    /// <returns>影响的记录数</returns>
    public static int ExecuteSqlInsertImg(string strSQL, byte[] fs)
    {
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            SqlCommand cmd = new SqlCommand(strSQL, connection);
            System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter("@fs", SqlDbType.Image);
            myParameter.Value = fs;
            cmd.Parameters.Add(myParameter);
            try
            {
                connection.Open();
                int rows = cmd.ExecuteNonQuery();
                return rows;
            }
            catch (System.Data.SqlClient.SqlException e)
            {
                throw e;
            }
            finally
            {
                cmd.Dispose();
                connection.Close();
            }
        }
    }

    /// <summary>
    /// 执行一条计算查询结果语句，返回查询结果（object）。
    /// </summary>
    /// <param name="SQLString">计算查询结果语句</param>
    /// <returns>查询结果（object）</returns>
    public static object GetSingle(string SQLString)
    {
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            using (SqlCommand cmd = new SqlCommand(SQLString, connection))
            {
                try
                {
                    connection.Open();
                    object obj = cmd.ExecuteScalar();
                    if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                    {
                        return null;
                    }
                    else
                    {
                        return obj;
                    }
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    connection.Close();
                    throw e;
                }
            }
        }
    }
    public static object GetSingle(string SQLString, int Times)
    {
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            using (SqlCommand cmd = new SqlCommand(SQLString, connection))
            {
                try
                {
                    connection.Open();
                    cmd.CommandTimeout = Times;
                    object obj = cmd.ExecuteScalar();
                    if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                    {
                        return null;
                    }
                    else
                    {
                        return obj;
                    }
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    connection.Close();
                    throw e;
                }
            }
        }
    }
    /// <summary>
    /// 执行查询语句，返回SqlDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close )
    /// </summary>
    /// <param name="strSQL">查询语句</param>
    /// <returns>SqlDataReader</returns>
    public static SqlDataReader ExecuteReader(string strSQL)
    {
        SqlConnection connection = new SqlConnection(connectionString);
        SqlCommand cmd = new SqlCommand(strSQL, connection);
        try
        {
            connection.Open();
            SqlDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
            return myReader;
        }
        catch (System.Data.SqlClient.SqlException e)
        {
            throw e;
        }

    }
    /// <summary>
    /// 执行查询语句，返回DataSet
    /// </summary>
    /// <param name="SQLString">查询语句</param>
    /// <returns>DataSet</returns>
    public static DataSet Query(string SQLString)
    {

        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            DataSet ds = new DataSet();
            try
            {
                connection.Open();
                SqlDataAdapter command = new SqlDataAdapter(SQLString, connection);
                command.Fill(ds, "ds");
            }
            catch (System.Data.SqlClient.SqlException ex)
            {
                throw new Exception(ex.Message);
            }
            return ds;
        }

    }
    public static DataSet Query(string SQLString, int Times)
    {
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            DataSet ds = new DataSet();
            try
            {
                connection.Open();
                SqlDataAdapter command = new SqlDataAdapter(SQLString, connection);
                command.SelectCommand.CommandTimeout = Times;
                command.Fill(ds, "ds");
            }
            catch (System.Data.SqlClient.SqlException ex)
            {
                throw new Exception(ex.Message);
            }
            return ds;
        }
    }

    /// <summary>
    /// 2012-2-21新增重载，执行查询语句，返回DataSet
    /// </summary>
    /// <param name="connection">SqlConnection对象</param>
    /// <param name="trans">SqlTransaction事务</param>
    /// <param name="SQLString">SQL语句</param>
    /// <returns>DataSet</returns>
    public static DataSet Query(SqlConnection connection, SqlTransaction trans, string SQLString)
    {
        DataSet ds = new DataSet();
        try
        {
            SqlDataAdapter command = new SqlDataAdapter(SQLString, connection);
            command.SelectCommand.Transaction = trans;
            command.Fill(ds, "ds");
        }
        catch (System.Data.SqlClient.SqlException ex)
        {
            throw new Exception(ex.Message);
        }
        return ds;

    }

    #endregion

    #region 执行带参数的SQL语句

    /// <summary>
    /// 执行SQL语句，返回影响的记录数
    /// </summary>
    /// <param name="SQLString">SQL语句</param>
    /// <returns>影响的记录数</returns>
    public static int ExecuteSql(string SQLString, params SqlParameter[] cmdParms)
    {
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            using (SqlCommand cmd = new SqlCommand())
            {
                try
                {
                    PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                    int rows = cmd.ExecuteNonQuery();
                    cmd.Parameters.Clear();
                    return rows;
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    throw e;
                }
            }
        }
    }

    /// <summary>
    /// 2012-2-29新增重载，执行SQL语句，返回影响的记录数
    /// </summary>
    /// <param name="connection">SqlConnection对象</param>
    /// <param name="trans">SqlTransaction对象</param>
    /// <param name="SQLString">SQL语句</param>
    /// <returns>影响的记录数</returns>
    public static int ExecuteSql(SqlConnection connection, SqlTransaction trans, string SQLString, params SqlParameter[] cmdParms)
    {
        using (SqlCommand cmd = new SqlCommand())
        {
            try
            {
                PrepareCommand(cmd, connection, trans, SQLString, cmdParms);
                int rows = cmd.ExecuteNonQuery();
                cmd.Parameters.Clear();
                return rows;
            }
            catch (System.Data.SqlClient.SqlException e)
            {
                //trans.Rollback();
                throw e;
            }
        }
    }

    /// <summary>
    /// 执行多条SQL语句，实现数据库事务。
    /// </summary>
    /// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的SqlParameter[]）</param>
    public static void ExecuteSqlTran(Hashtable SQLStringList)
    {
        using (SqlConnection conn = new SqlConnection(connectionString))
        {
            conn.Open();
            using (SqlTransaction trans = conn.BeginTransaction())
            {
                SqlCommand cmd = new SqlCommand();
                try
                {
                    //循环
                    foreach (DictionaryEntry myDE in SQLStringList)
                    {
                        string cmdText = myDE.Key.ToString();
                        SqlParameter[] cmdParms = (SqlParameter[])myDE.Value;
                        PrepareCommand(cmd, conn, trans, cmdText, cmdParms);
                        int val = cmd.ExecuteNonQuery();
                        cmd.Parameters.Clear();
                    }
                    trans.Commit();
                }
                catch(Exception ex)
                {
                    trans.Rollback();
                    throw;
                }
            }
        }
    }
    /// <summary>
    /// 执行多条SQL语句，实现数据库事务。
    /// </summary>
    /// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的SqlParameter[]）</param>
    public static void ExecuteSqlTranWithIndentity(Hashtable SQLStringList)
    {
        using (SqlConnection conn = new SqlConnection(connectionString))
        {
            conn.Open();
            using (SqlTransaction trans = conn.BeginTransaction())
            {
                SqlCommand cmd = new SqlCommand();
                try
                {
                    int indentity = ;
                    //循环
                    foreach (DictionaryEntry myDE in SQLStringList)
                    {
                        string cmdText = myDE.Key.ToString();
                        SqlParameter[] cmdParms = (SqlParameter[])myDE.Value;
                        foreach (SqlParameter q in cmdParms)
                        {
                            if (q.Direction == ParameterDirection.InputOutput)
                            {
                                q.Value = indentity;
                            }
                        }
                        PrepareCommand(cmd, conn, trans, cmdText, cmdParms);
                        int val = cmd.ExecuteNonQuery();
                        foreach (SqlParameter q in cmdParms)
                        {
                            if (q.Direction == ParameterDirection.Output)
                            {
                                indentity = Convert.ToInt32(q.Value);
                            }
                        }
                        cmd.Parameters.Clear();
                    }
                    trans.Commit();
                }
                catch
                {
                    trans.Rollback();
                    throw;
                }
            }
        }
    }
    /// <summary>
    /// 执行一条计算查询结果语句，返回查询结果（object）。
    /// </summary>
    /// <param name="SQLString">计算查询结果语句</param>
    /// <returns>查询结果（object）</returns>
    public static object GetSingle(string SQLString, params SqlParameter[] cmdParms)
    {
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            using (SqlCommand cmd = new SqlCommand())
            {
                try
                {
                    PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                    object obj = cmd.ExecuteScalar();
                    cmd.Parameters.Clear();
                    if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                    {
                        return null;
                    }
                    else
                    {
                        return obj;
                    }
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    throw e;
                }
            }
        }
    }

    /// <summary>
    /// 2012-2-21新增重载，执行一条计算查询结果语句，返回查询结果（object）。
    /// </summary>
    /// <param name="connection">SqlConnection对象</param>
    /// <param name="trans">SqlTransaction事务</param>
    /// <param name="SQLString">计算查询结果语句</param>
    /// <returns>查询结果（object）</returns>
    public static object GetSingle(SqlConnection connection, SqlTransaction trans, string SQLString, params SqlParameter[] cmdParms)
    {
        using (SqlCommand cmd = new SqlCommand())
        {
            try
            {
                PrepareCommand(cmd, connection, trans, SQLString, cmdParms);
                object obj = cmd.ExecuteScalar();
                cmd.Parameters.Clear();
                if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                {
                    return null;
                }
                else
                {
                    return obj;
                }
            }
            catch (System.Data.SqlClient.SqlException e)
            {
                //trans.Rollback();
                throw e;
            }
        }
    }

    /// <summary>
    /// 执行查询语句，返回SqlDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close )
    /// </summary>
    /// <param name="strSQL">查询语句</param>
    /// <returns>SqlDataReader</returns>
    public static SqlDataReader ExecuteReader(string SQLString, params SqlParameter[] cmdParms)
    {
        SqlConnection connection = new SqlConnection(connectionString);
        SqlCommand cmd = new SqlCommand();
        try
        {
            PrepareCommand(cmd, connection, null, SQLString, cmdParms);
            SqlDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
            cmd.Parameters.Clear();
            return myReader;
        }
        catch (System.Data.SqlClient.SqlException e)
        {
            throw e;
        }
        //            finally
        //            {
        //                cmd.Dispose();
        //                connection.Close();
        //            }    

    }

    /// <summary>
    /// 执行查询语句，返回DataSet
    /// </summary>
    /// <param name="SQLString">查询语句</param>
    /// <returns>DataSet</returns>
    public static DataSet Query(string SQLString, params SqlParameter[] cmdParms)
    {
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            SqlCommand cmd = new SqlCommand();
            PrepareCommand(cmd, connection, null, SQLString, cmdParms);
            using (SqlDataAdapter da = new SqlDataAdapter(cmd))
            {
                DataSet ds = new DataSet();
                try
                {
                    da.Fill(ds, "ds");
                    cmd.Parameters.Clear();
                }
                catch (System.Data.SqlClient.SqlException ex)
                {
                    throw new Exception(ex.Message);
                }
                return ds;
            }
        }
    }

    /// <summary>
    /// 2012-2-21新增重载，执行查询语句，返回DataSet
    /// </summary>
    /// <param name="connection">SqlConnection对象</param>
    /// <param name="trans">SqlTransaction事务</param>
    /// <param name="SQLString">查询语句</param>
    /// <returns>DataSet</returns>
    public static DataSet Query(SqlConnection connection, SqlTransaction trans, string SQLString, params SqlParameter[] cmdParms)
    {
        SqlCommand cmd = new SqlCommand();
        PrepareCommand(cmd, connection, trans, SQLString, cmdParms);
        using (SqlDataAdapter da = new SqlDataAdapter(cmd))
        {
            DataSet ds = new DataSet();
            try
            {
                da.Fill(ds, "ds");
                cmd.Parameters.Clear();
            }
            catch (System.Data.SqlClient.SqlException ex)
            {
                //trans.Rollback();
                throw new Exception(ex.Message);
            }
            return ds;
        }
    }

    private static void PrepareCommand(SqlCommand cmd, SqlConnection conn, SqlTransaction trans, string cmdText, SqlParameter[] cmdParms)
    {
        if (conn.State != ConnectionState.Open)
            conn.Open();
        cmd.Connection = conn;
        cmd.CommandText = cmdText;
        if (trans != null)
            cmd.Transaction = trans;
        cmd.CommandType = CommandType.Text;//cmdType;
        if (cmdParms != null)
        {

            foreach (SqlParameter parameter in cmdParms)
            {
                if ((parameter.Direction == ParameterDirection.InputOutput || parameter.Direction == ParameterDirection.Input) &&
                    (parameter.Value == null))
                {
                    parameter.Value = DBNull.Value;
                }
                cmd.Parameters.Add(parameter);
            }
        }
    }

    #endregion

    #region 存储过程操作

    /// <summary>
    /// 执行存储过程，返回SqlDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close )
    /// </summary>
    /// <param name="storedProcName">存储过程名</param>
    /// <param name="parameters">存储过程参数</param>
    /// <returns>SqlDataReader</returns>
    public static SqlDataReader RunProcedure(string storedProcName, IDataParameter[] parameters)
    {
        SqlConnection connection = new SqlConnection(connectionString);
        SqlDataReader returnReader;
        connection.Open();
        SqlCommand command = BuildQueryCommand(connection, storedProcName, parameters);
        command.CommandType = CommandType.StoredProcedure;
        returnReader = command.ExecuteReader(CommandBehavior.CloseConnection);
        return returnReader;

    }

    /// <summary>
    /// 执行存储过程
    /// </summary>
    /// <param name="storedProcName">存储过程名</param>
    /// <param name="parameters">存储过程参数</param>
    /// <param name="tableName">DataSet结果中的表名</param>
    /// <returns>DataSet</returns>
    public static DataSet RunProcedure(string storedProcName, IDataParameter[] parameters, string tableName)
    {
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            DataSet dataSet = new DataSet();
            connection.Open();
            SqlDataAdapter sqlDA = new SqlDataAdapter();
            sqlDA.SelectCommand = BuildQueryCommand(connection, storedProcName, parameters);
            sqlDA.Fill(dataSet, tableName);
            connection.Close();
            return dataSet;
        }
    }
    public static DataSet RunProcedure(string storedProcName, IDataParameter[] parameters, string tableName, int Times)
    {
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            DataSet dataSet = new DataSet();
            connection.Open();
            SqlDataAdapter sqlDA = new SqlDataAdapter();
            sqlDA.SelectCommand = BuildQueryCommand(connection, storedProcName, parameters);
            sqlDA.SelectCommand.CommandTimeout = Times;
            sqlDA.Fill(dataSet, tableName);
            connection.Close();
            return dataSet;
        }
    }

    /// <summary>
    /// 构建 SqlCommand 对象(用来返回一个结果集，而不是一个整数值)
    /// </summary>
    /// <param name="connection">数据库连接</param>
    /// <param name="storedProcName">存储过程名</param>
    /// <param name="parameters">存储过程参数</param>
    /// <returns>SqlCommand</returns>
    private static SqlCommand BuildQueryCommand(SqlConnection connection, string storedProcName, IDataParameter[] parameters)
    {
        SqlCommand command = new SqlCommand(storedProcName, connection);
        command.CommandType = CommandType.StoredProcedure;
        foreach (SqlParameter parameter in parameters)
        {
            if (parameter != null)
            {
                // 检查未分配值的输出参数,将其分配以DBNull.Value.
                if ((parameter.Direction == ParameterDirection.InputOutput || parameter.Direction == ParameterDirection.Input) &&
                    (parameter.Value == null))
                {
                    parameter.Value = DBNull.Value;
                }
                command.Parameters.Add(parameter);
            }
        }

        return command;
    }

    /// <summary>
    /// 执行存储过程，返回影响的行数
    /// </summary>
    /// <param name="storedProcName">存储过程名</param>
    /// <param name="parameters">存储过程参数</param>
    /// <param name="rowsAffected">影响的行数</param>
    /// <returns></returns>
    public static int RunProcedure(string storedProcName, IDataParameter[] parameters, out int rowsAffected)
    {
        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            int result;
            connection.Open();
            SqlCommand command = BuildIntCommand(connection, storedProcName, parameters);
            rowsAffected = command.ExecuteNonQuery();
            result = (int)command.Parameters["ReturnValue"].Value;
            //Connection.Close();
            return result;
        }
    }

    /// <summary>
    /// 创建 SqlCommand 对象实例(用来返回一个整数值)
    /// </summary>
    /// <param name="storedProcName">存储过程名</param>
    /// <param name="parameters">存储过程参数</param>
    /// <returns>SqlCommand 对象实例</returns>
    private static SqlCommand BuildIntCommand(SqlConnection connection, string storedProcName, IDataParameter[] parameters)
    {
        SqlCommand command = BuildQueryCommand(connection, storedProcName, parameters);
        command.Parameters.Add(new SqlParameter("ReturnValue",
            SqlDbType.Int, , ParameterDirection.ReturnValue,
            false, , , string.Empty, DataRowVersion.Default, null));
        return command;
    }
    #endregion

}

配置文件

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <!-- 数据库连接字符串-->
  <connectionStrings>
    <add name="ConnectionString" connectionString="Data Source=.;Initial Catalog=qrab;Integrated Security=True;" />
  </connectionStrings>
    <startup>
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
    </startup>
</configuration>

用法：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data.SqlClient;
using System.Windows.Forms;
using System.Collections;

namespace WindowsFormsApp3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
        }
        /// <summary>
        /// DbHelperSQL.ExecuteReader取一条数据(两重重载)
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button1_Click(object sender, EventArgs e)
        {
            //用法一
            SqlDataReader read = DbHelperSQL.ExecuteReader("select id,name,txt from qrtable where id=2");
            while (read.Read())
            {
                MessageBox.Show(read["id"].ToString());
                MessageBox.Show(read["name"].ToString());
                MessageBox.Show(read["txt"].ToString());
            }
            read.Close();
            //用法二
            StringBuilder builder = new StringBuilder();
            builder.Append("select id,name,txt from qrtable where id=@id and txt=@txt");
            SqlParameter[] paramet =
            {
                new SqlParameter("@id",SqlDbType.Int,),
                new SqlParameter("@txt",SqlDbType.NVarChar,)
            };
            paramet[].Value = ;
            paramet[].Value = "";
            SqlDataReader read2 = DbHelperSQL.ExecuteReader(builder.ToString(), paramet);
            while (read2.Read())
            {
                MessageBox.Show(read2["id"].ToString());
                MessageBox.Show(read2["name"].ToString());
                MessageBox.Show(read2["txt"].ToString());
            }
            read2.Close();
        }
        /// <summary>
        /// DbHelperSQL.ExecuteSql插入|修改|删除(五重重载)
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button2_Click(object sender, EventArgs e)
        {
            //用法一
            int result = DbHelperSQL.ExecuteSql("INSERT INTO qrtable(name,txt) VALUES('qrcode','qrlx')");
            MessageBox.Show(result.ToString());
            //用法二
            //DbHelperSQL.ExecuteSql("", "");//未完成
            //用法三
            SqlParameter name = new SqlParameter("@name", SqlDbType.NVarChar, );name.Value = "zg";
            SqlParameter txt = new SqlParameter(@"txt", SqlDbType.NVarChar, );txt.Value = "txt";
            SqlParameter[] paramet = { name, txt };
           int result1 = DbHelperSQL.ExecuteSql("INSERT INTO qrtable(name,txt) VALUES(@name,@txt)", paramet);
            MessageBox.Show(result1.ToString());
            //用法四
            //DbHelperSQL.ExecuteSql(SqlConnection,SqlTransaction,"sql")//未完成
            //用法五
            //DbHelperSQL.ExecuteSql(SqlConnection, SqlTransaction, "sql", parameter);//未完成
        }
        /// <summary>
        /// DbHelperSQL.ExecuteSqlByTime插入|修改|删除(设置超时时间)
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button3_Click(object sender, EventArgs e)
        {
            DbHelperSQL.ExecuteSqlByTime("INSERT INTO table(name,txt) VALUES('qrcode','qrlx')", );
        }
        /// <summary>
        /// DbHelperSQL.ExecuteSqlGet插入(返回受影响的行)
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button4_Click(object sender, EventArgs e)
        {
            DbHelperSQL.ExecuteSqlGet("", "");
        }
        /// <summary>
        /// DbHelperSQL.ExecuteSqlInsertImg(存储二进制格式到数据库)
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button5_Click(object sender, EventArgs e)
        {
            //DbHelperSQL.ExecuteSqlInsertImg(string, byte);
        }
        /// <summary>
        /// DbHelperSQL.ExecuteSqlTran执行多条SQL语句(支持事务回滚)
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button6_Click(object sender, EventArgs e)
        {
            //用法一:参数化执行多条SQL语句(支持事务回滚)
            Hashtable hashtable = new Hashtable();
            StringBuilder build1 = new StringBuilder();
            build1.Append("INSERT INTO qrtable(name,txt) VALUES(@name,@txt)");
            SqlParameter[] parent1 = {
                new SqlParameter("@name",SqlDbType.NVarChar,),
                new SqlParameter("@txt",SqlDbType.NVarChar,)
            };
            parent1[].Value = "haha111";
            parent1[].Value = "hahaha111";
            hashtable.Add(build1, parent1);
            StringBuilder build2 = new StringBuilder();
            build2.Append("UPDATE qrtable SET name=@name,txt=@txt WHERE id=@id");
            SqlParameter[] parent2 = {
                new SqlParameter("@id",SqlDbType.Int,),
                new SqlParameter("@name",SqlDbType.NVarChar,),
                new SqlParameter(@"txt",SqlDbType.NVarChar,)
            };
            parent2[].Value = ;
            parent2[].Value = "xx";
            parent2[].Value = "xxx";
            hashtable.Add(build2, parent2);
            DbHelperSQL.ExecuteSqlTran(hashtable);
            //用法二:执行多条SQL语句字符串拼接方式
            List<string> list = new List<string>();
            string sql1 = "INSERT INTO table(name,txt) VALUES('qrcode','qrlx')";
            string sql2 = "INSERT INTO table(name,txt) VALUES('qrcode1','qrlx1')";
            string sql3 = "UPDATE table SET name='汽车' txt='zqrios' WHERE id=1";
            list.Add(sql1);
            list.Add(sql2);
            list.Add(sql3);
            DbHelperSQL.ExecuteSqlTran(list);
            //用法三:未完成
            //List<CommandInfo> info = new List<CommandInfo>();
            //CommandInfo oneinfo = new CommandInfo();
            //info.Add(oneinfo);
            //DbHelperSQL.ExecuteSqlTran(info);
        }
        /// <summary>
        /// DbHelperSQL.GetSingle根据条件查询(返回单个对象)
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button7_Click(object sender, EventArgs e)
        {
            SqlParameter[] paramet ={
                //new SqlParameter("@id",SqlDbType.Int,4),
                new SqlParameter("@txt",SqlDbType.NVarChar,)
            };
            //paramet[0].Value = 1;
            paramet[].Value = "txt";
           object obj = DbHelperSQL.GetSingle("select count(id) from qrtable where txt=@txt", paramet);
        }
        /// <summary>
        /// DbHelperSQL.Query条件查询(返回数据集dataset)
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button8_Click(object sender, EventArgs e)
        {
            SqlParameter[] paramet ={
                new SqlParameter("@id",SqlDbType.Int,),
                //new SqlParameter("@txt",SqlDbType.NVarChar,255)
            };
            paramet[].Value = ;
            //paramet[1].Value = "qr";
            DataSet ds = DbHelperSQL.Query("select id,name,txt from qrtable where id=@id", paramet);
        }
        /// <summary>
        /// DbHelperSQL.RunProcedure增删改查执行存储过程
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button9_Click(object sender, EventArgs e)
        {
            //用法一返回单条数据
            IDataParameter[] iparamt1 = new IDataParameter[]
            {
                new SqlParameter("@id",SqlDbType.Int,)
            };
            iparamt1[].Value = ;
            SqlDataReader read = DbHelperSQL.RunProcedure("qr_code", iparamt1);
            while (read.Read())
            {
                MessageBox.Show(read["name"].ToString());
            }
            read.Close();

            //用法二  执行存储过程，插入\修改\删除\返回影响的行数
            IDataParameter[] iparamt2 = new IDataParameter[]{
                new SqlParameter("@id",SqlDbType.Int,)
            };
            iparamt2[].Value = ;
            string rowNumber = "";
            DbHelperSQL.RunProcedure("qr_codeint", iparamt2, rowNumber);

            //用法三 返回数据集dataset
            IDataParameter[] iparamt3 = new IDataParameter[]{
                new SqlParameter("@id",SqlDbType.Int,)
            };
            iparamt3[].Value = ;
            DataSet ds = DbHelperSQL.RunProcedure("qr_codelist", iparamt3, "qrcode");
        }
    }
}

存储过程操作用列

        private void button9_Click(object sender, EventArgs e)
        {
            //1.用法一返回单条数据
            //存储过程start
            //create proc proc_id
            //@id int
            //as
            //select* from qrtable where id = @id
            //go
            //存储过程end
            IDataParameter[] iparamt1 = new IDataParameter[]
            {
                new SqlParameter("@id",SqlDbType.Int,)
            };
            iparamt1[].Value = ;
            SqlDataReader read = DbHelperSQL.RunProcedure("proc_id", iparamt1);
            while (read.Read())
            {
                MessageBox.Show(read["name"].ToString());
                MessageBox.Show(read["txt"].ToString());
            }
            read.Close();

            //2.用法二  执行存储过程，插入\修改\删除\返回影响的行数
            //2.1  插入数据(insert)
            //存储过程start
            //create proc ininsert
            //@name nvarchar(255),
            //@txt nvarchar(255)
            //as
            //insert into qrtable(name, txt) values(@name, @txt)
            //go
            //存储过程end
            IDataParameter[] iinsert = new IDataParameter[]
            {
                    new SqlParameter("@name",SqlDbType.NVarChar,),
                    new SqlParameter("@txt",SqlDbType.NVarChar,)
            };
            iinsert[].Value = "gaga";
            iinsert[].Value = "jjjjjj";
            int res = ;
            int insertresult = DbHelperSQL.RunProcedure("ininsert", iinsert, out res);

            //2.2 修改数据(update)
            //create proc upupdate
            //@name nvarchar(255),
            //@txt nvarchar(255),
            //@id int
            //as
            //update qrtable set name = @name,txt = @txt where id = @id
            //go
            IDataParameter[] upupdate = new IDataParameter[]
            {
                    new SqlParameter("@name",SqlDbType.NVarChar,),
                    new SqlParameter("@txt",SqlDbType.NVarChar,),
                    new SqlParameter("@id",SqlDbType.Int)
            };
            upupdate[].Value = "xxxxxxxx";
            upupdate[].Value = "txt11111";
            upupdate[].Value = ;
            int res = ;
            int insertresult = DbHelperSQL.RunProcedure("upupdate", upupdate, out res);

            //2.3 删除数据(delete)
            //create proc dedelete
            //@id int
            //as
            //delete from qrtable where id = @id
            //go
            IDataParameter[] dedelete = new IDataParameter[]
            {
                    new SqlParameter("@id",SqlDbType.Int)
            };
            dedelete[].Value = ;
            int res = ;
            int deleteresult = DbHelperSQL.RunProcedure("dedelete", dedelete, out res);

            IDataParameter[] dedelete = new IDataParameter[]
           {
                    new SqlParameter("@name",SqlDbType.NVarChar,),
                    new SqlParameter("@txt",SqlDbType.NVarChar,),
                    new SqlParameter("@ReturnValue",SqlDbType.Int)
           };
            dedelete[].Value = "zg";
            dedelete[].Value = "txt";
            int res = ;
            int deleteresult = DbHelperSQL.RunProcedure("userlogin", dedelete, out res);
            //用法三 返回数据集dataset
            //==存储过程start==
            //create proc proc_stu
            //@name nvarchar(255),
            //@txt nvarchar(255)
            //as
            //select* from qrtable where name = @name and txt = @txt
            //go
            //==存储过程end==
            IDataParameter[] iparamt3 = new IDataParameter[]{
                //new SqlParameter("@id",SqlDbType.Int,4)
               new SqlParameter("@name",SqlDbType.NVarChar,),
               new SqlParameter("@txt",SqlDbType.NVarChar,)
            };
            iparamt3[].Value = "xx";
            iparamt3[].Value = "txt";
            DataSet ds = DbHelperSQL.RunProcedure("proc_stu", iparamt3, "qrcode");
        }