# Creating Generic Data Types with the Complex Type Selector Dialog

Using the Complex Type Selector dialog, you can also create .NET generic data types. For example, you can create a System.Collections.Generic.List<T> or a System.Collection.Generic.Dictionary<TKey,TValue> type.

1. To create a generic data type, in the Filter textbox, enter a string that matches the C# generic parameter declaration.
2. Once the desired generic data type is listed, select it to enable the configuration of the accompanying Generic Parameters.

3. The Generic Parameters are defined using the Data Type Selector.

Note:

Nested data types can be created by pressing the ... button to launch another Complex Type Selector dialog. The example below shows a multiple nested data type.