ArgumentToExpressionConverter Class

.NET Framework (current version)
 

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.

Namespace:   System.Activities.Presentation.Converters
Assembly:  System.Activities.Presentation (in System.Activities.Presentation.dll)

System.Object
  System.Activities.Presentation.Converters.ArgumentToExpressionConverter

public class ArgumentToExpressionConverter : IValueConverter

NameDescription
System_CAPS_pubmethodArgumentToExpressionConverter()

Initializes a new instance of the ArgumentToExpressionConverter class.

NameDescription
System_CAPS_pubmethodConvert(Object, Type, Object, CultureInfo)

Converts the specified argument into an expression.

System_CAPS_pubmethodConvertBack(Object, Type, Object, CultureInfo)

Converts the specified Argument.Expression into an argument.

System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_pubmethodToString()

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}"
   />

.NET Framework
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.

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