protected void Accept(Object sender, EventArgs e)
    {
        int   index = ((GridViewRow)((Control)sender).NamingContainer).RowIndex;
        Label labelForHoldTheValue = (Label)GridView1.Rows[index].Cells[0].FindControl("Label1");
        int   labelToInteger       = Convert.ToInt32(labelForHoldTheValue.Text);

        vacancyManager.ApproveVacancy(labelToInteger);
        LabelToShowMsg.Text    = "Approved Successfully";
        LabelToShowMsg.Visible = true;
        add();
    }