protected void GridViewOrders_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        LinkButton sndTextButton = (LinkButton)e.Row.FindControl("LinkButtonSendText");
        int orderStatusCode = Convert.ToInt32(DataBinder.Eval(e.Row.DataItem, "OrderStatusCode"));
        var cellphone = DataBinder.Eval(e.Row.DataItem, "ClientCellPhone");

        if (orderStatusCode == 3 && cellphone.ToString().Length > 10)
        {
            sndTextButton.Visible = true;
        }
    }
}