Exception | Description |
---|---|
System.InvalidOperationException | If the IsReadOnly property is set to true or if this method is called in the middle of an update operation, e.g. from within a TextChanging event handler. |
System.ArgumentOutOfRangeException | If lineIndex is less than 0 or lineIndex plus lineCount greater than 1 minus the number of lines in the document. |
Note: the amount and type of whitespace removed is determined by the TabExtent property setting.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2