Gets the 0-based index of the column in the owning
WorksheetTable.Columns collection.
Property Value
The 0-based index of the column in its collection or -1 if the column has been removed from the table.
Target Platforms: Android 4.4+, iOS 8+
Development Environments: Visual Studio 2015+, Visual Studio for Mac Preview, Xamarin for Visual Studio 4.2+