Does GroupingNode need a resize completed event to implement undo resize?

[Yokosama]

Hi, i want to implement undo resize when GroupingNode resize completed. It looks like i need to add an event? or is there any other solution? Thank you.

[miroiu]

Hi, you can bind to the GroupingNode.ActualSize property which is only set when the resize is completed.
Example from Playground app:

<DataTemplate DataType="{x:Type local:CommentNodeViewModel}">
    <nodify:GroupingNode ActualSize="{Binding Size}"
                         Header="{Binding Title}" />
</DataTemplate>

private Size _size;
public Size Size
{
    get => _size;
    set => SetProperty(ref _size, value); // you can record the change in here
}

Please let me know if that helps.

[Yokosama]

I've tried this code and it's very helpful to me.Thank you.
It should be noted that when deserializing a graph, need to check whether it is in deserialization, otherwise record will be executed once.

[miroiu]

Added ResizeCompleted event and ResizeCompletedCommand in commit 12a8d2f
Let me know if this is what you need. Thanks!

[Yokosama]

Yes, that's what I need. Thank you very much.