DataTableMappingCollection.Contains Method (Object)
Gets a value indicating whether the given DataTableMapping object exists in the collection.
Assembly: System.Data (in System.Data.dll)
The following example searches for a DataTableMapping within the collection. If the mapping exists in the collection, it is removed. If the mapping does not exist within the collection, it is added to the collection and its index is displayed. The example assumes that a DataTableMappingCollection collection and a DataTableMapping object have been created.