---------------------------
 
id      |   tName
 ---------------------------
 
 1          aaaa

public class _Index : System.Web.UI.Page
   	{
		private   DataSet topicsDS;
		protected System.Web.UI.WebControls.DataGrid DataGrid1;
		private   SqlConnection sqlCon;
		private   SqlDataAdapter sqlCmd;
		
			
		private void Page_Load(object sender, System.EventArgs e)
		{  	 
			    
				sqlCon=DBtools.makeConnection();
			    sqlCon.Open();

			    topicsDS = new DataSet();
			    DataGrid1 = new DataGrid();
			    sqlCmd = new SqlDataAdapter( "select * from cTopics" , sqlCon);

			    topicsDS.CaseSensitive = true; 
                topicsDS.HasErrors     
			    sqlCmd.Fill(topicsDS,  "catalogTopics" );
			    //sqlCmd.Connection=sqlCon;
			    //sqlCmd.CommandText =  "select * from catalogTopics" ;
			    //dataReader=sqlCmd.ExecuteReader(CommandBehavior.CloseConnection);
				DataGrid1.DataSource=topicsDS.Tables( "catalogTopics" ).DefaultView; 
				DataGrid1.DataBind();
			
			
				
				
				
			}

asp:datagrid id= "DataGrid1"  DataKeyField= "tName"  AutoGenerateColumns= "True"  GridLines= "Vertical"  BorderColor= "#003366b"  Runat= "server" >
				<Columns>
					<asp:BoundColumn DataField= "tName"  HeaderText= "topic" ></asp:BoundColumn>
				</Columns>
			</asp:datagrid>