Well Mike, as I said the data object does not allow null in the Name field and this is what the business logic requires. Anyway properties on the data object or the data object itself is certainly not the case. And that is because when I place the UltraTextEdit control on a Windows Form, bind it with the Name field of the same business object and set the form's AutoValidate property to EnableAllowFocusChange, it behaves as expected. When the user deletes the text from the text control and tries to navigate away from the control the ErrorProvider correctly shows the Message "Name is a required field" and the UltraTextEdit control loses focus. Focus is lost because the AutoValidate property of the form is set to EnableAllowFocusChange. That's what this property is supposed to do. It should allow the focus to be lost from an input control when validation fails.

Now, regarding the RowEditTemplateControl. My initial question was: Can the same behavior be achieved within a RowEditTemplateControl? Does the RowEditTemplate control respect the AutoValidate property of the form?

I remind you that I have tried binding exactly the same business object to an UltraTextEdit control on a Windows Form and a RowEditTemplate control. When validation fails, on the Windows form the UltraTextEdit control can lose focus but on the RowEditTemplate it cannot.

Hi,

Okay, if that's the case, then it sounds like there is something wrong there.

I'm not familiar enough with the inner workings of the RowEditTemplate to say off the top of my head if there's a way to do this. Can you provide a small sample project that demonstrates the behavior you are getting so we can check it out? It sounds like this may be a bug, but we'd have to delve into the code and so some testing to be sure.

Mike, thank you for your time.
I have uploaded a sample project demonstrating the issue.
I have created the project using VS2008 and used infragistics controls Version 10.1.20101.1007.

The project is an executable with one form. On the right you will find an UltraGrid with a RowEditTemplate attached and on the left two UtraTextEdit controls. Just click on any cell on the grid to make the RowEditTemplate appear. Then try to delete the Name field both on the tmplate and the UltraTextEdit control on the form. Try to navigate away from the Name editor into the description editor and you will see that this is possible only on the form.

P.S. Just for this case I have made the RowEditTemplate to be modeless so that it would be possible for you to test the binding behavior on the controls on the form.

Thanks, Kostas

Hi Kostas,

I ran your sample and I get the same results. I spent some time trying to figure out why it's behaving differently on the RowEditTemplate, but I can't see any reason for this. The RowEditTemplate is contained within the same form. If I put the UltraTextEditor that is directly on the form into a panel or other container, it works just the same. So I can't see why the RET should be any different.

I'm going to forward this over to Infragistics Developer Support so they can write it up as a potential bug and we can look into it in more detail.

Hi,

It's pretty tough to guess why this isn't working without seeing exactly what you are doing. Could you reproduce this in a small sample project?

Hi Mike,

I have a grid with 4 columns. I am creating Rowedittemplate in runtime. I want to bind an user control for a cell. Is it possible?

I tried the following code to bind.

dim loCell as new uiTextcontrol

loCell.DataBindings.Add(

"Text", uiRowEditTemplate, QbGrid.DisplayLayout.Bands(0).Columns(lnCnt).Key)

My usercontrol having 3 controls. 2 label controls and a text box. I have a property "Text" & "Value" for the user control which actually gives/sets the value or text to the textbox inside the usercontrol.

The usercontrol is displaying on the row edit template. But the value is not coming from the grid cell and viceversia. Please guide me?. Whether i have to set any property? 

Hi Kostas,

I think you will be receiving a notification from Developer Support soon, if you have not already, but I just wanted to let you know that we have resolved the issue here.

This turns out not to be a bug, per se. What's happening is that you are setting the AutoValidate property on the main form in your application to EnableAllowFocusChange. But this has no effect on the RowEditTemplate, because theRowEditTemplate is not on this form. The RET creates it's own dialog to display itself and no one is setting AutoValidate on this RET form. 

So, you can easily work around this issue by setting AutoValidate on the dialog that is created by the RET. Like so: 

private void 
BusinessObjectsGrid_AfterRowEditTemplateDisplayed(object sender, 
AfterRowEditTemplateDisplayedEventArgs e)
        {
            
Form form 
= e.Template.FindForm();
            if (form != null && form
 != 
this)
            {
                form.AutoValidate = 
AutoValidate.EnableAllowFocusChange;
            }
        }

This was pretty tough to figure out, though. So to make things easier, we will be adding an AutoValidate property to the DialogSettings of the RET. This will be in the next service release.

Note that this property cannot be exposed in the property grid at design-time for v9.2 and v10.1, since this would cause issues with backward compatibility. So the property is available in those (older) versions only at run-time. In v10.2 and up, the property will display in the property grid as normal.

Thank you Mike,

Please update this post when you have something new.