ColumnMappings : DataTableMapping « ADO.Net « C# / CSharp Tutorial






using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
using System.Data.OleDb;
using System.Data.Common;

public class DataColumnMappingDemo : System.Windows.Forms.Form
{
  private System.Windows.Forms.DataGrid dataGrid1;
  private System.ComponentModel.Container components = null;

  public DataColumnMappingDemo()
  {
    InitializeComponent();
  }

  protected override void Dispose( bool disposing )
  {
    if( disposing )
    {
      if (components != null) 
      {
        components.Dispose();
      }
    }
    base.Dispose( disposing );
  }

  private void InitializeComponent()
  {
    this.dataGrid1 = new System.Windows.Forms.DataGrid();
    ((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
    this.SuspendLayout();
    // 
    // dataGrid1
    // 
    this.dataGrid1.DataMember = "";
    this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
    this.dataGrid1.Location = new System.Drawing.Point(8, 16);
    this.dataGrid1.Name = "dataGrid1";
    this.dataGrid1.Size = new System.Drawing.Size(432, 248);
    this.dataGrid1.TabIndex = 0;
    // 
    // DataColumnMappingDemo
    // 
    this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
    this.ClientSize = new System.Drawing.Size(448, 273);
    this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                    this.dataGrid1});
    this.Name = "DataColumnMappingDemo";
    this.Text = "DataColumnMappingDemo";
    this.Load += new System.EventHandler(this.DataColumnMappingDemo_Load);
    ((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
    this.ResumeLayout(false);

  }
  [STAThread]
  static void Main() 
  {
    Application.Run(new DataColumnMappingDemo());
  }

  private void DataColumnMappingDemo_Load(object sender, System.EventArgs e)
  {
        string ConnectionString ="Integrated Security=SSPI;Initial Catalog=Northwind;Data Source=localhost;";
        SqlConnection conn = new SqlConnection(ConnectionString);
        conn.Open();

        DataTableMapping myMapping = new DataTableMapping("Table", "Orders");
        SqlDataAdapter adapter = new SqlDataAdapter("Select * From Orders", conn);

        adapter.TableMappings.Add(myMapping);

        myMapping.ColumnMappings.Add(new DataColumnMapping("OrderID", "mapID"));
        
        DataSet ds = new DataSet();
        adapter.Fill(ds);

        Console.WriteLine( ds.Tables["Orders"].Rows[0]["mapID"].ToString());

        dataGrid1.DataSource = ds.DefaultViewManager;
  }
}








32.40.DataTableMapping
32.40.1.Table mapping
32.40.2.DataTableMapping and DataGridDataTableMapping and DataGrid
32.40.3.ColumnMappings