Grids for WPF Forum

Posted 13 years ago by Mary Fontana - Rudolph Technologies
I am using propgrid to display a parent object and its collection of child objects.
Something like this:

List<Child> children

class Child
[Editor(typeof(DialogTextBoxPropertyEditor), typeof(PropertyEditor))]
string Item {get; set; } // has the onPropertyChanged stuff here too

The the property Item on each child object I need to have a popup dialog that will ask for selection of a new value.
How do I set the child objects value once I get the new value in my ShowPropertiesDialog event handler?

In my property grid I define:

                    <CommandBinding Command="{x:Static propgrid:PropertyGrid.ShowPropertyDialogCommand}" Executed="ShowPropertiesDialog" />
My event handler ShowPropertiesDialog

private void ShowPropertiesDialog(object sender, ExecutedRoutedEventArgs e)
            var pgitem = e.Parameter as PropertyGridDataAccessorItem;
            if (pgitem == null) return;
            var currentItem = pgitem.Value as String;
                var dialog = new ItemSelectionDialog(currentItem);
                dialog.Comments = "Select a new owner.";
                if (dialog.ShowDialog() == true)
                    string newValue = dialog.SelectedItem;
                    pgitem.Value = newValue;
                    // how do I set the the correct childObject.Item= newValue

In above code. If I set pgitem.Value it will update the property grid display, but it does not execute the childObject's Item property.

Comments (2)

Posted 13 years ago by Actipro Software Support - Cleveland, OH, USA
Hi Mary,

You should be able to set the Value property, that's what we do in our Property Editors QuickStart. If you can please put together a small sample project that reproduces your issue and email it over then we can take a closer look. Be sure to remove any executables or change the extension of the zip file to ensure it gets past our email filters.

Actipro Software Support

Posted 13 years ago by Mary Fontana - Rudolph Technologies
I fixed the problem. I was using [ReadOnly(True)] on the property.
I did this so that the property value field was read only, and wanted to use the popup dialog button instead. I fixed the problem with a custom editor.

The latest build of this product (v24.1.2) was released 2 months ago, which was after the last post in this thread.

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