Tracking a line of text

Hi Jane,

Our TextSnapshotRange object stores an ITextSnapshot (an immutable copy of the document at a certain point in time) and start/end offsets (0-based values from the document start).  This documentation topic covers the subject.

If you have a TextSnapshotRange for a line's range of text, then as edits occur and new snapshots are created for the document, you can use the snapshot translation feature to translate the TextSnapshotRange to the new current snapshot and see what its new values are, or if it is deleted.  TextSnapshotRange can tell you its offset range or position (line/char) range, along with the contained text.

Thank you so much! TextSnapshotRange worked really well. So far, the only issue I'm having now is if I hit enter/next line at the end of the snapshot range, the snapshot translation moves the text range to the next line. Is there a way for it to not do that? I tried TextRangeTrackingModes.LineBased and TextRangeTrackingModes.Default and both has same behaviour.

TextSnapshotRange translatedRange = selectedItem.TextSnapshot.TranslateTo(this.actiproEditor.Document.CurrentSnapshot, TextRangeTrackingModes.LineBased);

Hello,

When you made the TextSnapshotRange for the line, did it include the line terminator character at the end?  If so, then I would expect the behavior you're seeing since pressing Enter at the end of the visible text (but before the line terminator character) would be in the "middle" of the text range.  Some of the tracking mode options for expanding at the end wouldn't make a difference in that scenario.