The OpenEdge Ultra Controls for .NET (Ultra Controls) include additional controls that can be used for developing OpenEdge GUI for .NET applications. These Ultra Controls are a set of supported Infragistics NetAdvantage Windows Forms controls that provide built-in features different from those provided by the Microsoft controls. These built-in features allow developers to create forms with sophisticated user interfaces primarily by setting a rich set of properties.

Infragistics provides detailed documentation and help on these controls. While this documentation is written assuming use of a .NET language, the description of a control and its properties and events are all relevant for its use in ABL. You can access this documentation in the following ways:

• Visit the vendor's web site. For more information on OpenEdge Ultra Controls, see the API Reference Guide on the Infragistics Windows Forms help page.
• Open the control in the OpenEdge Class Browser to see control definitions using a modified ABL syntax.
• Press F1 after you place the control on the form within Progress Developer Studio for OpenEdge Visual Designer. The online help on the respective vendor site opens.