Item reorder using RearrangingDropSink only works in Details view

[Johnny J]

Hi
It's my experience that item rearranging using a RearrangingDropSink only works if the OLV is in Details view.

Is that correct? I need it in LargeIcon view, and even thougt it behaves like a drag and drop item reorder is in progress, nothing happens when I drop.

It's no more complicated than this (as far as the reordering is concerned anyway. I also attempt to allow drag and drop of files from the Explorer on the same time, and that makes it all a little more complicated)

RearrangingDropSink dropSink = new RearrangingDropSink(false);
dropSink.Dropped += DropSink_Dropped;

DocumentPageListView.DragSource = new SimpleDragSource();
DocumentPageListView.DropSink = dropSink;

Regards,
Johnny J.

[Johnny J]

Yup - it's true. I did a quick and dirty workaround by copying all of the code for RearrangingDropSink to a new class and changing the RearrangeModels method like this:

** this.ListView.SuspendLayout();
** this.ListView.View = View.Details;

        switch (args.DropTargetLocation)
        {
            case DropTargetLocation.AboveItem:
                this.ListView.MoveObjects(args.DropTargetIndex, args.SourceModels);
                break;
            case DropTargetLocation.BelowItem:
                this.ListView.MoveObjects(args.DropTargetIndex + 1, args.SourceModels);
                break;
            case DropTargetLocation.Background:
                this.ListView.AddObjects(args.SourceModels);
                break;
            default:
                return;
        }

        if (args.SourceListView != this.ListView)
        {
            args.SourceListView.RemoveObjects(args.SourceModels);
        }

** this.ListView.View = View.LargeIcon; **
** this.ListView.ResumeLayout();**

Works fine, but it's definitely not the best solution to the problem... ;-)

/Johnny

[Phillip Piper]

Yes, I didn't get around to implementing horizontal rearrangement :(

However, I've just checked in the code to the SF repo which allow rearrangement on LargeIcon, SmallIcon and Tile views.

Give it a try and see if it works for you :)

[Dialecticus]

New code uses C#6 string interpolation, not available in VS2012 and earlier. All four lines in DropSink.cs are calls to System.Diagnostics.Debug.WriteLine.

[Phillip Piper]

Thanks. I forgot to take out the debugging lines.

I've taken them out now.