WPF DataObject handler mangles URIs

[DevJohnC]

When implementing a Drag+Drop using a DataObject to store URIs the WPF platform (and possibly others) will mangle the URI because it's copied as a string using AbsolutePath (which is an escaped string).

Expected Behavior

For URIs to be copied without extra string escaping.

Actual Behavior

Strings are escaped an additional time when accessing the DataObject's URIs.

Steps to Reproduce the Problem

1. Start a dragdrop with DoDragDrop using a DataObject that contains a URI with a string that needs escaping, ie: "C:/Windows/Fonts/TreeGridView.Invalidate doesn't work #44 Font.ttf" in my case
2. Drop on a control with AllowDrop = true and a DragDrop event handler
3. Inspect the Data property of the DragDropEventArgs and see that "TreeGridView.Invalidate doesn't work #44 Font" has been escaped

Note that when click and dragging from Explorer will not cause this issue because the URI isn't being duplicated via AbsolutePath.

Specifications

• Version: 2.5.0-ci-10206
• Platform(s): WPF
• Operating System(s): Windows 10

[cwensley]

Hey @DevJohnC,

Should be a relatively easy fix, thanks for submitting the issue!