private void approveButton_Click(object sender, RoutedEventArgs e)
        {
            if (maintainanceID != "")
            {
                string query = "UPDATE maintainance_request SET om_approved='1' WHERE maintainance_id='" + maintainanceID + "'";
                if (DBManager.UpdateDatabaseQuery(query))
                {
                    valuesC.Rows.Add(values.Rows[myGridSelectedIndex].ItemArray);
                    myMessageBox mm = new myMessageBox("Approved Succesfully", "Success", "OK", 0);
                    mm.ShowDialog();

                    //MessageBox.Show("Approved Succefully", "Success", MessageBoxButton.OK, MessageBoxImage.Information);
                    values = DBManager.selectForMaintainanceApproval();
                    approve_maintainance_request.ItemsSource = values.AsDataView();
                    maintainanceID = "";
                }
                else
                {
                    myMessageBox mm = new myMessageBox("Error Occured", "Error", "OK", 1);
                    mm.ShowDialog();

                    // MessageBox.Show("Error Occured", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
                }
            }
        }
 public ApproveMaintainanceRequest()
 {
     InitializeComponent();
     try
     {
         values = DBManager.selectForMaintainanceApproval();
         approve_maintainance_request.ItemsSource = values.AsDataView();
         valuesC = values.Clone();
         approved_Items.ItemsSource = valuesC.AsDataView();
     }
     catch
     {
     }
 }