protected void Reject(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.RejectVacancy(labelToInteger);
LabelToShowMsg.Text = "Reject Successfully";
LabelToShowMsg.Visible = true;
add();
}