Finally got my answer
I add a bit datatype in my database so that when user enter details in form and press submit button bit become "true" and when click on link and update details bit become "false" when bit become false write code on RowDataBoung
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
string url = DataBinder.Eval(e.Row.DataItem, "Bit").ToString();
if (url =="False")
{
e.Row.Cells[15].Enabled = false;
}
}
}