Creates or closes expression editors.
Assembly: System.Activities.Presentation (in System.Activities.Presentation.dll)
An expression editor is a Visual Basic control used to edit expressions inside Visual Studio. This control provides a full-fledged IDE editing experience, including IntelliSense, colorization, ParamInfo, error squiggles, among other features.
Thecan also be used to manage instances of custom expression editors. To register a custom expression editor, you must publish the using the following code :
this.expressionEditorService = new ExpressionEditorService();
An expression editor is created when an ExpressionTextBox instance gains focus and is destroyed on losing focus of a valid expression, or on reloading of the designer.
The default expression editor is not available for use in rehosted applications. If the default expression editor is used in a rehosted application, a text box is available for editing. However, custom expression editors can be used in a rehosted application by publishing thein the application.
If you are using an ExpressionTextBox control in a custom activity designer, it is not necessary to create and destroy expression editors using this interface. The ExpressionTextBox class manages this for you.
Available since 4.0