protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        //TextBox t1 = (TextBox)GridView1.Rows[e.RowIndex].FindControl("noofpos");
        Label  l1 = (Label)GridView1.Rows[e.RowIndex].FindControl("Label1");
        string x  = l1.Text.ToString();

        int result = vacancyManager.DeleteVacany(Convert.ToInt32(l1.Text));

        if (result == 0)
        {
            Label9.Visible = true;
            add();
        }
        else
        {
            Label9.Visible = false;
            add();
        }
    }