Both versions must reference the same ITextDocument??

We're using Actipro v2016.1 in our application, and have seen this error out in the wild and reported back through our telemetry. Any sense if this is still a known issue, and/or if there is a known fix?

Here is the exception message/stack:

Both versions must reference the same ITextDocument.
   at ActiproSoftware.Text.TextRange.Translate(ITextVersion #bDf, ITextVersion #qCf, TextRangeTrackingModes #oCf, Boolean #cDf)
   at ActiproSoftware.Text.TextSnapshotRange.TranslateTo(ITextSnapshot toSnapshot, TextRangeTrackingModes trackingModes)

Here's our method that is calling ActiproSoftware code:

private static TextRange FindRangeInDestination(ITextSnapshot destination, TextSnapshotRange source)
{
    var translatedRange = source.TranslateTo(destination, TextRangeTrackingModes.Default).TextRange;
    if (!destination.TextRange.BordersOn(translatedRange))
    {
        return translatedRange;
    }
 
    return TextRange.Intersect(source, destination.TextRange);
}

The ITextSnapshot being sent as the destination parameter is

SyntaxEditor.ActiveView.CurrentSnapshot

Hello, when you translate a text range between two snapshots, the snapshots must be from the same document.  Otherwise there is no way they can be translated since there is no history.  I would recommend adding a snapshot.Document equality check before ever translating between snapshots.

But you probably also want to sort out what scenario in your app is triggering the document to be changed.  Such as maybe you are swapping in a different document in the editor after caching the first snapshot?

Would you be able to point me towards any additional documentation you might have in this area, with these kinds of tips & tricks to watch out for?

Hello,

The "Snapshot Translation" topic in the documentation that comes with the product talks about the mechanism and various applicable scenario ideas at length.