StrataFrame Forum » StrataFrame Application Framework - V1 » Business Objects and Data Access (How do I?) » WinForms UserControl not refreshing bound control.

WinForms UserControl not refreshing bound control.

Alan P Bourke — Wed, 28 Jan 2009 09:33:07 GMT

I have a UserControl that implements MicroFour.StrataFrame.UI.Windows.Forms.UserControl.

On that UserControl I have a BO, and a textbox bound to that BO in the normal way. In the UserControl Load event I have a call to FillDataTable() .

I also have a testbed project with a form that uses the control.

The problem is when I run the testbed project the form comes up and displays the first record in the textbox, however the textbox is disabled. If I place a MaintenanceFormToolStrip either on the UserControl itself, or the test form that hosts the UserControl, it does not seem to connect to the BO as the buttons on the strip don't change the textbox.

Also, if I place my own button on the UserControl and use that to call MoveNext() on the BO, I can see the CurrentRowIndex changing, but the textbox just stays as is.

I suspect I'm interpreting what I should be doing here incorrectly - any pointers?

TIA ...

RE: WinForms UserControl not refreshing bound control.

Trent L. Taylor — Wed, 28 Jan 2009 09:33:07 GMT

Yeah, that is exactly what that is for. I will make a note of the help and make sure it gets in there.

RE: WinForms UserControl not refreshing bound control.

Edhy Rijo — Tue, 27 Jan 2009 11:35:19 GMT

Great!, glad you found it.

RE: WinForms UserControl not refreshing bound control.

Alan P Bourke — Tue, 27 Jan 2009 11:20:18 GMT

Aha! As simple as setting up the Business Object Translation!

Don't see it in the help file though ...

Thanks.

RE: WinForms UserControl not refreshing bound control.

Edhy Rijo — Tue, 27 Jan 2009 08:38:47 GMT

Forgot to mention, do a search in the forum for "UserControl" that will give you several hits, and your answer should be there.

I have found with SF that once you understand the "How to", things that looks complicated, are in fact very easy to accomplish.

RE: WinForms UserControl not refreshing bound control.

Alan P Bourke — Tue, 27 Jan 2009 08:09:36 GMT

Thanks. That looks fairly complicated :(

RE: WinForms UserControl not refreshing bound control.

Edhy Rijo — Tue, 27 Jan 2009 07:40:14 GMT

Hi Alan,

Take a look at the StrataFlix sample application specifically at these items:

StrataFlix.UI PeopleLookupControl.vb user control
StataFlix CastMemberSelection.vb form

There you have a live sample of a user control and how to manage it in a regular form. I personally have not used that feature so I may not be able to get deeper in this topic.

RE: WinForms UserControl not refreshing bound control.

Alan P Bourke — Tue, 27 Jan 2009 03:17:20 GMT

I should add that the call to FillDataTable() is "select * from mytable" i.e. it will be returning more that one record.