C# 连接SQLServer数据库自动生成model类代码

Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace ModelFactory
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            DBSelect dbs = new DBSelect();
            dbs.ShowDialog();
            TableSelect ts = new TableSelect();
            ts.ShowDialog();
            Application.Run(new ModelFactory());
        }
    }
}

　　

DataBase.cs

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

namespace ModelFactory
{
    public static class DataBase
    {
        public static string DataSouse { get; set; }
        public static string USER_ID { get; set; }
        public static string PASSWORD { get; set; }
        public static string database { get; set; }
        private static string connectString{ get; set; }
        public static List<string> tablenames = new List<string>();
        public static void Init()
        {

            if (string.IsNullOrEmpty(DataBase.database)) DataBase.database = "master";
            connectString = string.Format("DATA SOURCE={0};INITIAL CATALOG={1};USER ID={2};PASSWORD={3};", DataSouse, database, USER_ID, PASSWORD);
        }
        public static SqlConnection SqlOpen()
        {
            SqlConnection connection = null;
            try
            {
                connection = new SqlConnection(connectString);
                //connection.Open();
                return connection;
            }
            catch
            {
                return connection;
            }
        }
        public static bool SqlClose(SqlConnection connection)
        {
            if (connection != null)
            {
                connection.Close();
                return true;
            }
            else
                return false;
        }
        public static DataSet ProcSet(string commandstr)
        {
            //	data.Clear();
            DataSet data = new DataSet();
            SqlConnection connection = SqlOpen();
            SqlDataAdapter aCommand = new SqlDataAdapter(commandstr, connection);
            try
            {
                aCommand.SelectCommand.CommandTimeout = 120;
                connection.Open();
                aCommand.Fill(data);
                SqlClose(connection);
                return data;
            }
            catch (Exception e)
            {
                return null;
            }
            finally
            {
                SqlClose(connection);
            }
        }
        public static int DoProc(string commandstr)
        {
            SqlConnection connection = SqlOpen();
            SqlCommand sqlCom = new SqlCommand(commandstr, connection);
            sqlCom.CommandTimeout = 1200;
            try
            {
                connection.Open();
                int x = Convert.ToInt32(sqlCom.ExecuteNonQuery());
                SqlClose(connection);

                return x;

            }
            catch (Exception e)
            {
                return 0;
            }
            finally
            {
                SqlClose(connection);
            }
        }
        public static string ProcString(string commandstr)
        {
            SqlConnection connection = SqlOpen();
            SqlCommand sqlCom = new SqlCommand(commandstr, connection);
            sqlCom.CommandTimeout = 600;
            string str = "";
            try
            {
                connection.Open();
                var obj = sqlCom.ExecuteScalar();
                if (obj != null)
                    str = obj.ToString();
                return str;
            }
            catch (Exception e)
            {
                return "";
            }
            finally
            {
                SqlClose(connection);
            }

        }
        public static void Add(string tablename)
        {
            tablenames.Add(tablename);
        }
    }

}

　　DBSelect

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.Windows.Forms;

namespace ModelFactory
{
    public partial class DBSelect : Form
    {
        public DBSelect()
        {
            InitializeComponent();
        }

        private void textBox3_Leave(object sender, EventArgs e)
        {
            DataBase.DataSouse = textBox1.Text.Trim();
            DataBase.USER_ID = textBox2.Text.Trim();
            DataBase.PASSWORD = textBox3.Text.Trim();
            DataBase.Init();
            DataSet ds = DataBase.ProcSet("SELECT d.name,d.database_id FROM sys.databases AS d WHERE d.log_reuse_wait>0");

            comboBox1.DisplayMember = "name";
            comboBox1.ValueMember = "database_id";
            comboBox1.DataSource = ds.Tables[0];
        }

        private void button1_Click(object sender, EventArgs e)
        {
            DataBase.database = comboBox1.Text;
            DataBase.Init();
            this.Close();

        }

        private void comboBox1_Enter(object sender, EventArgs e)
        {
            textBox3_Leave(sender, e);
        }
    }
}

　　TableSelect

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.Windows.Forms;

namespace ModelFactory
{
    public partial class TableSelect : Form
    {
        public TableSelect()
        {
            InitializeComponent();
            listBox2.DisplayMember = "name";
            listBox2.ValueMember = "name";
            listBox1.DataSource = DataBase.ProcSet("SELECT t.name FROM sys.tables AS t").Tables[0];
            listBox1.DisplayMember = "name";
            listBox1.ValueMember = "name";

        }

        private void listBox1_DoubleClick(object sender, EventArgs e)
        {
            //listBox1.Items.Remove(listBox1.SelectedItem);
            listBox2.Items.Add(listBox1.SelectedItem);
        }

        private void listBox2_DoubleClick(object sender, EventArgs e)
        {
            listBox2.Items.Remove(listBox2.SelectedItem);
        }

        private void button3_Click(object sender, EventArgs e)
        {

           foreach(System.Data.DataRowView row in listBox2.Items)
           {
               DataBase.Add(row.Row.ItemArray[0].ToString());
           }
           this.Close();
        }

    }
}

　　ModelFactory.cs

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.Windows.Forms;

namespace ModelFactory
{
    public partial class ModelFactory : Form
    {
        private StringBuilder sb = new StringBuilder();
        public ModelFactory()
        {
            InitializeComponent();
            foreach (string tablename in DataBase.tablenames)
            {
                sb.AppendLine("    public class " + tablename);
                sb.AppendLine("    {");
                DataTable dt = DataBase.ProcSet("select top 1 * from " + tablename).Tables[0];
                //DbType dbtype;
                string dbtype,columnname;

                for (int i = 0; i < dt.Columns.Count;i++ )
                {
                    dbtype = CastType(dt.Columns[i].DataType);
                    columnname = dt.Columns[i].ColumnName;
                    sb.AppendLine("         public " + dbtype + " " + columnname+" {get;set;}");
                }
                sb.AppendLine("    }");
            }
            textBox1.Text = sb.ToString();
        }
        public string CastType(Type type)
        {
            if (type == typeof(string))
            {
                return "string";
            }
            else if (type == typeof(DateTime))
            {
                return "DateTime";
            }
            else if (type == typeof(bool))
            {
                return "bool";
            }
            else if (type == typeof(int))
            {
                return "int";
            }
            else
            {
                return type.ToString().Split('.')[type.ToString().Split('.').Length - 1];
            }

        }
    }
}