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Ticket T253031
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Why can a DetailView be not editable or display empty values?

Add/Instantiate NonPersistent Detail View in DashboardView

created 10 years ago

Hi Support Team,

I have a dashbaordview which contains an ascx page and a xaf listview.
Now we want to add fields to filter the listview.
So I created a nonpersistent class (detailview) which contains the fields for filtering and a collection (using the same xaf listview).
Please refer to attached file for the screenshot.

Using the newly added detailview instead of the listview, I noticed that the fields is not editable.
I'm guessing that the NonPersistent object is not yet instantiated when the dashboard is loaded.

Please advise how to make the fields in detailview editable so I can input values to filter the listview.
Other implementation is welcome also.

Respectfully,
Carlo

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Answers approved by DevExpress Support

created 10 years ago (modified 10 years ago)

Hello Carlo,

You are right, it is necessary to assign the CurrentObject to this DetailView. If the parameters class is not used anywhere else, you can simply create a controller for this DetailView, as shown below:

C#
public class ViewController1 : ObjectViewController<DetailView, FilterParameters> {  
    protected override void OnActivated() {  
        base.OnActivated();  
        if (View.CurrentObject == null) {  
            View.ViewEditMode = DevExpress.ExpressApp.Editors.ViewEditMode.Edit;  
            View.CurrentObject = new FilterParameters();  
        }  
    }  
}

Does this solution meet your needs?

    Show previous comments (1)
    Anatol (DevExpress) 10 years ago

      This is just an example of a non-persistent class. Substitute it with the name of your class whose DetailView you want to show.

      CE CE
      Charlemagne Escarro 10 years ago

        Thanks Anatol for the prompt feedback.
        It's ok now.

        Anatol (DevExpress) 10 years ago

          You are welcome!

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