private void btnApproveLeave_Click(object sender, RoutedEventArgs e) { LeaveEntity.LeaveRequestID = int.Parse(txtLeaveId.Text); try { bool isApproved = leaveBLL.ApproveLeaveBLL(LeaveEntity.LeaveRequestID); // txtLeaveId.Text = " "; if (isApproved) { MessageBox.Show("Leave request for Id : approved successfully"); dgLeaveAproveReject.DataContext = leaveBLL.ListOfAllLeavesForAproveRejectBLL(EmployeeEntity.EmployeeID); } else { MessageBox.Show("Something went wrong with leave id : "); } } catch (Exception ex) { MessageBox.Show("error" + ex); } }