/// <summary>
/// Delete the content between a markup range from the document.
/// </summary>
/// <param name="selection"></param>
private void DeleteContent(MarkupRange selection)
{
//there is nothing being deleted, so just return
//Note: this avoids overhead associated with needlessly notifying that the content changed
if (selection.Start.IsEqualTo(selection.End))
{
return;
}
IUndoUnit undo = CreateUndoUnit();
using (undo)
{
try
{
selection.RemoveContent();
}
catch (Exception e)
{
Trace.Fail("error while deleting selection: " + e.Message, e.StackTrace);
throw e;
}
undo.Commit();
}
}