LinqDataSourceView::ValidateContextType Method
Checks whether the data context class derives from DataContext.
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
Parameters
- contextType
- Type: System::Type
The type of the data context class to validate.
- selecting
- Type: System::Boolean
Specifies whether the method has been called when a select operation starts.
| Exception | Condition |
|---|---|
| InvalidOperationException | An insert, update, or delete operation is being performed and the data context class does not derive from DataContext. |
The class that is specified in the ContextTypeName property must derive from the DataContext class in order to enable automatic insert, update, and delete operations.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.