sql数据库之间数据的转录

  private void Form1_Load(object sender, EventArgs e)
         {
             BindDataBase(combDataBaseNew, , "");
             BindDataBase(combDataBaseOld, , "");

         }
         //获取新数据库 0 是数据库 1是 表
         private void BindDataBase(ComboBox combDataBase, int style, string database)
         {
             switch (style)
             {
                 case :
                     {
                         string strSql = "select name from sysdatabases order by name";
                         combDataBase.DataSource = this.GetDataBases(strSql).Tables[];
                         combDataBase.DisplayMember = "name";
                         combDataBase.ValueMember = "name";
                         break;
                     }
                 case :
                     {
                         StringBuilder sb = new StringBuilder();
                         sb.AppendFormat("use {0}", database);
                         sb.AppendFormat(" SELECT Name from sysobjects Where Type='U' ORDER BY Name");
                         combDataBase.DataSource = this.GetDataBases(sb.ToString()).Tables[];
                         combDataBase.ValueMember = "name";
                         combDataBase.DisplayMember = "name";
                         break;
                     }
             }
         }
         //获取数据库连接
         private SqlConnection GetConnections()
         {
             SqlConnectionStringBuilder sqlsb = new SqlConnectionStringBuilder();
             sqlsb.DataSource = "localhost";
             sqlsb.IntegratedSecurity = true;
             SqlConnection conn = new SqlConnection();
             conn.ConnectionString = sqlsb.ConnectionString;
             return conn;
         }
         //根据查询语句，获取对应的数据集
         private DataSet GetDataBases(string strSql)
         {
             SqlDataAdapter sda = new SqlDataAdapter();
             SqlCommand cmd = new SqlCommand();
             DataSet ds = new DataSet();
             using (SqlConnection conn = this.GetConnections())
             {
                 conn.Open();
                 cmd.CommandText = strSql;
                 cmd.CommandType = CommandType.Text;
                 cmd.Connection = conn;
                 sda.SelectCommand = cmd;
                 sda.Fill(ds, "databases");
                 conn.Close()        ;

             }
             return ds;
         }
         private int GetDoIt(string strSql)
         {
             SqlCommand cmd = new SqlCommand();
             object b = null;
             using (SqlConnection conn = this.GetConnections())
             {
                 conn.Open();
                 cmd.CommandText = strSql;
                 cmd.CommandType = CommandType.Text;
                 cmd.Connection = conn;
                 b= cmd.ExecuteNonQuery();
                 conn.Close();
             }
            return Convert.ToInt32(b);
         }
         private void btn_biaoOld_Click(object sender, EventArgs e)
         {
             BindDataBase(comOldtable, , combDataBaseOld.SelectedValue.ToString());

         }

         private void btn_biaoNew_Click(object sender, EventArgs e)
         {
             BindDataBase(comNewtable, , combDataBaseNew.SelectedValue.ToString());
         }
         //绑定grid控件
         public void GetTableZiDuan()
         {
             string strSql = string.Format("use {0}  Select Name FROM SysColumns Where id=Object_Id('{1}')", combDataBaseOld.SelectedValue, comOldtable.SelectedValue);
             this.dataGridView1.DataSource = GetDataBases(strSql).Tables[];

         }
         //绑定combobox控件
         public void GetNewTableZiDuan()
         {
             string strSql = string.Format("use {0}  Select Name FROM SysColumns Where id=Object_Id('{1}')", combDataBaseNew.SelectedValue, comNewtable.SelectedValue);
             this.NewZiDuan.DataSource = GetDataBases(strSql).Tables[];
             this.NewZiDuan.ValueMember = "name";
             this.NewZiDuan.DisplayMember = "name";
         }
         private void btn_OldZiDuan_Click(object sender, EventArgs e)
         {
             GetTableZiDuan();
         }

         private void btn_NewZiDuan_Click(object sender, EventArgs e)
         {
             GetNewTableZiDuan();
         }
         private void dataGridView1_DataBindingComplete(object sender, DataGridViewBindingCompleteEventArgs e)
         {
             if (this.dataGridView1.Rows.Count != )
             {
                 for (int i = ; i < this.dataGridView1.Rows.Count; )
                 {
                     this.dataGridView1.Rows[i].DefaultCellStyle.BackColor = System.Drawing.Color.Pink;
                     i += ;
                 }
             }
         }

         private void btn_StartZhuanLu_Click(object sender, EventArgs e)
         {
             List<string> oldList = new List<string>();
             List<string> newList = new List<string>();
             for (int i = ; i < this.dataGridView1.Rows.Count; i++)
             {
                 if ((bool)(((DataGridViewCheckBoxCell)this.dataGridView1.Rows[i].Cells["isTrue"]).EditedFormattedValue) == true)
                 {
                     oldList.Add(dataGridView1.Rows[i].Cells["OldZiDuan"].Value.ToString());
                     newList.Add(((DataGridViewComboBoxCell)dataGridView1.Rows[i].Cells["NewZiDuan"]).Value.ToString());
                 }
             }
            OldToNew(oldList,newList,"");
         }
         private void OldToNew(List<string> oldList, List<string> newList, string where)
         {
             StringBuilder sb = new StringBuilder();
             sb.AppendFormat("use {0}",combDataBaseOld.SelectedValue);
             sb.AppendFormat(" select ");
             for (int i = ; i < oldList.Count; i++)
             {
                 sb.AppendFormat(oldList[i] + ",");
             }
             sb.Remove(sb.ToString().LastIndexOf(','), );
             sb.AppendFormat(" from {0}", comOldtable.SelectedValue);
             if (!string.IsNullOrEmpty(where))
             {
                 sb.AppendFormat(" where {0}", where);
             }
             MessageBox.Show(sb.ToString());
            DataTable dt= GetDataBases(sb.ToString()).Tables[];
            if (dt.Rows.Count > )
            {
                int sum = ;
                for (int i = ; i < dt.Rows.Count; i++)
                {
                  sum+=InsertNewDataBase(dt,i,newList,oldList);
                }
                if (sum == dt.Rows.Count)
                {
                    MessageBox.Show("数据转录成功");
                }
                else
                {
                    if (sum != )
                    {
                        MessageBox.Show("理论转录信息条数：" + dt.Rows.Count + "；实践转录信息条数：" + sum + ";实际转录条数与理论条数不符");
                    }

                }
            }
            else
            {
                MessageBox.Show("要转录的旧数据库，没有数据信息");
            }
         }
         private int  InsertNewDataBase(DataTable dt,int a,List<string> newList,List<string> oldList)
         {
             int sum = ;
             try
             {
                 StringBuilder sb = new StringBuilder();
                 sb.AppendFormat("use {0}", combDataBaseNew.SelectedValue);
                 sb.AppendFormat(" insert into {0} (", comNewtable.SelectedValue);
                 for (int i = ; i < newList.Count; i++)
                 {
                     sb.AppendFormat(newList[i] + ",");
                 }
                 sb.Remove(sb.ToString().LastIndexOf(','), );
                 sb.AppendFormat(")values(");
                 for (int i = ; i < oldList.Count; i++)
                 {
                     sb.AppendFormat("'" + dt.Rows[a][oldList[i]] + "'" + ",");
                 }
                 sb.Remove(sb.ToString().LastIndexOf(','), );
                 sb.AppendFormat(")");
                 MessageBox.Show(sb.ToString());
                 sum = GetDoIt(sb.ToString());
                 return sum;
             }
             catch (Exception e)
             {
                 MessageBox.Show(e.Message);
                 return sum;
             }

         }
     }