| Exception | Description | 
|---|---|
| System.ArgumentNullException | The assigned value is null and this is an instance of WorkbookWindowOptions whose associated Workbook has at least one Worksheet. | 
| System.ArgumentException | The assigned value does not belong to the workbook associated with this instance of WindowOptions. | 
If this is an instance of CustomViewWindowOptions and the SelectedWorksheet value is null, the workbook's selected worksheet will not be changed when the associated CustomView is applied.
Note: If the selected worksheet does not have its DisplayOptionsBase.Visibility set to Visible when the workbook is saved, another worksheet will be selected.
Target Platforms: Android 4.4+, iOS 8+
Development Environments: Visual Studio 2015+, Visual Studio for Mac Preview, Xamarin for Visual Studio 4.2+