Creating a Custom Add or Edit Dialog (Sheel Shah)

re: Creating a Custom Add or Edit Dialog (Sheel Shah)

LThibx — Thu, 07 Mar 2013 15:06:24 GMT

Sheel,

Your DialogHelper is a great solution for modal window implementation. I have used it in a couple projects. Have you experienced any issue in VS 2012? I had a project that worked correctly in VS 2010, but after migrating to VS 2012, When I load a screen with the DialogHelper implementation I receive the following error:

An error occurred while running the screen.

Error details: Object reference not set to an instance of an object.

Debugging, it happens right after exiting from the screens IntializeDataWorkspace Sub, My code is:

Private MWPersonExpenseDialogHelper As DialogHelper

Private MWPersonMileageDialogHelper As DialogHelper

'InitializeDataWorkspace -sets up Modal Windows for both PersonExpensesFiltered and Person_Mileage

Private Sub ListPersons_PersonExpenses_InitializeDataWorkspace(saveChangesTo As List(Of Microsoft.LightSwitch.IDataService))

'Setup dialogs for both modal windows

MWPersonExpenseDialogHelper = New DialogHelper(Me.PersonExpensesFiltered, "MWPersonExpense")

MWPersonMileageDialogHelper = New DialogHelper(Me.Person_Mileage, "MWPersonMileage")

'Initialize PEPagingValue

'Me.PEPagingValue = Me.Details.Properties.PersonExpensesFiltered.PageSize

End Sub

'Private Sub ListPersons_PersonExpenses_Created()

' 'Initialize Modal Windows

MWPersonExpenseDialogHelper.InitializeUI()

MWPersonMileageDialogHelper.InitializeUI()

'End Sub

I am trying to utilize two modal windows on this screen, but i have tried reducing it to one, same error.

I can't seem to determine what Object LS is complaining about. Either or both of the MWPerson... objects are instantiated after the return, but as soon as I step out of the End Sub from InitializeDataWorkspace. I get the error mentioned above.

Hoping you can shed some light on the issue.

Thanks in advance.

LThibx

re: Creating a Custom Add or Edit Dialog (Sheel Shah)

VictorPerez — Mon, 31 Dec 2012 03:12:39 GMT

Really very useful, thank you.

re: Creating a Custom Add or Edit Dialog (Sheel Shah)

OOps — Tue, 04 Dec 2012 16:25:37 GMT

Dear Sheel,

thanks for the solution. I am very new to Lightswitch and I have a question to your solution:

You have a Private Sub EditableCustomersGridOld_InitializeDataWorkspace, why "Old" and what is it for, and where or when will the customersDialogHelper ever be created?

many regards

OOps

re: Creating a Custom Add or Edit Dialog (Sheel Shah)

Abuggie — Wed, 26 Sep 2012 09:18:14 GMT

Here's a link to a page where someone translated into c#, and not only partially like yann...

tejana.wordpress.com/.../creating-a-custom-add-or-edit-dialog-in-lightswitch-c-beta2

re: Creating a Custom Add or Edit Dialog (Sheel Shah)

Belu — Thu, 22 Dec 2011 11:09:00 GMT

Anyone knows how to provide specific screens for adding/editing records? Because the built-in modal dialog don´t let me add new child records at the same time I’m adding the main record. I created a screen that let me do that but I don´t know how to pass the parent Id to the child so I don´t have to complete it manually

re: Creating a Custom Add or Edit Dialog (Sheel Shah)

Ng — Tue, 29 Nov 2011 01:01:34 GMT

Anyone found the work around for Ray and Markus's problem mentioned above?

re: Creating a Custom Add or Edit Dialog (Sheel Shah)

Ray Cacciatore — Sun, 30 Oct 2011 05:18:34 GMT

I'm having a problem when I click the OK button on the modal dialog. If I enter no info in the dialog and I press OK, none of the validation errors appear, it just closes and the record in the datagrid stays in the datagrid with the empty fields. I'd like the dialog to stay opened and show the validation errors, even when the user clicks ok.

re: Creating a Custom Add or Edit Dialog (Sheel Shah)

Markus G — Fri, 23 Sep 2011 06:42:06 GMT

Thank you for this great example.

Is there a way to disable the Enter key because the Enter key triggers the close event by default !!!

re: Creating a Custom Add or Edit Dialog (Sheel Shah)

bhuven — Sat, 10 Sep 2011 06:06:43 GMT

Will also appreciate code in C# please

re: Creating a Custom Add or Edit Dialog (Sheel Shah)

Misi Moisei — Wed, 17 Aug 2011 14:02:56 GMT

Would appreciate if the code would be in C#