ArgumentToExpressionConverter Class
Defines the mapping between arguments and expressions and provides the functionality to convert between these objects. Typically, this converter is used declaratively when using an ExpressionTextBox in a custom activity designer.
Assembly: System.Activities.Presentation (in System.Activities.Presentation.dll)
| Name | Description | |
|---|---|---|
![]() | ArgumentToExpressionConverter() | Initializes a new instance of the ArgumentToExpressionConverter class. |
| Name | Description | |
|---|---|---|
![]() | Convert(Object^, Type^, Object^, CultureInfo^) | Converts the specified argument into an expression. |
![]() | ConvertBack(Object^, Type^, Object^, CultureInfo^) | Converts the specified Argument.Expression into an argument. |
![]() | Equals(Object^) | Determines whether the specified object is equal to the current object.(Inherited from Object.) |
![]() | Finalize() | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.) |
![]() | GetHashCode() | Serves as the default hash function. (Inherited from Object.) |
![]() | GetType() | |
![]() | MemberwiseClone() | |
![]() | ToString() | Returns a string that represents the current object.(Inherited from Object.) |
This converter can also be used imperatively; however, this usage is not recommended.
The following XAML snippet shows how to use the ArgumentToExpressionConverter in a custom activity designer that uses an ExpressionTextBox.
<sapv:ExpressionTextBox
Expression="{Binding Path=ModelItem.SampleValue,
Mode=TwoWay,
Converter={StaticResource ArgumentToExpressionConverter},
ConverterParameter=In }"
ExpressionType="s:String"
OwnerActivity="{Binding Path=ModelItem}"
/>
Available since 4.0
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

