![](dotnetdiagramimages/GrapeCity_WPF_SpreadSheet_Data_GrapeCity_Windows_SpreadSheet_Data_Workbook.png)
'Declaration <DefaultMemberAttribute("Item")> Public NotInheritable Class Workbook Implements IThemeSupport
'Usage Dim instance As Workbook
[DefaultMember("Item")] public sealed class Workbook : IThemeSupport
System.Object
GrapeCity.Windows.SpreadSheet.Data.Workbook