public void GetData()
    {
        clsTenderItem obj = new clsTenderItem();

        GridView1.DataSource = obj.GetTenderItemsbitTwoDates(Convert.ToDateTime(txtStartD.Text), Convert.ToDateTime(txtEndD.Text));

        GridView1.DataBind();
        if (GridView1.Rows.Count == 0)
        {
            lblMessage.Text = "result not found";
        }
        else
        {
            lblMessage.Text = "";
        }
    }