title: Run time error 'Cannot find column 0'
body: <p>Run time error Cannot find column 0. below is my code</p>
  
  <pre><code>string connectiostring = (string)ConfigurationSettings.AppSettings["NorthwindConnectionString"];
      SqlConnection conn = new SqlConnection(connectiostring);
      SqlCommand cmd = new SqlCommand("select * from Employees", conn);
      conn.Open();
      SqlDataAdapter adapter = new SqlDataAdapter(cmd);
      DataSet data = new DataSet();
      adapter.Fill(data,"Employees");
      data.Tables["Employees"].Columns.Add("Testcolumn");
      DataTable t1 = new DataTable("Employees");
      DataRow newrow = t1.NewRow();
      newrow[0] = "10";\\this the line i am getting error
      newrow[1] = "Pradeep";
      newrow[2] = "Kumar";
      data.Tables["Employees"].Rows.Add(newrow);
      GridView2.DataSource = data;
      GridView2.DataBind();
  </code></pre>
  
  <p>Please help me
  Thanks,</p>