Hi AmolPandurangBorkar,
Please try the solution given below. It may help you to read DataField property of a bound column for a GridView.
System.Text.StringBuilder sbBoundFieldNames = new System.Text.StringBuilder();
foreach (System.Web.UI.WebControls.BoundField bfName in this.GridView1.Columns)
{
sbBoundFieldNames.Append("<br />" + bfName.DataField);
}
Response.Write(sbBoundFieldNames.ToString());
Regards,
Ambicaprasad Maurya