Hi,
You can use the GridView event RowDataBound
You can do something like
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
Label lbl = ((Label)e.Row.FindControl("lblNm"));
if(lbl.Text=="value")
{
lbl.Text=lbl.Text+"TT";
}
}
}