VisualBasicValue<TResult> Class

.NET Framework (current version)
 

Contains an expression in Visual Basic syntax that evaluates to an r-value, which supports binding of In arguments.

Namespace:   Microsoft.VisualBasic.Activities
Assembly:  System.Activities (in System.Activities.dll)

System::Object
  System.Activities::Activity
    System.Activities::ActivityWithResult
      System.Activities::Activity<TResult>
        System.Activities::CodeActivity<TResult>
          Microsoft.VisualBasic.Activities::VisualBasicValue<TResult>

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generic<typename TResult>
public ref class VisualBasicValue sealed : CodeActivity<TResult>, 
	IValueSerializableExpression, ITextExpression

Type Parameters

TResult

The type of the expression.

NameDescription
System_CAPS_pubmethodVisualBasicValue<TResult>()

Initializes a new instance of the VisualBasicValue<TResult> class.

System_CAPS_pubmethodVisualBasicValue<TResult>(String^)

Initializes a new instance of the VisualBasicValue<TResult> class using the specified expression.

NameDescription
System_CAPS_protpropertyCacheId

Gets the identifier of the cache that is unique within the scope of the workflow definition.(Inherited from Activity.)

System_CAPS_pubpropertyDisplayName

Gets or sets an optional friendly name that is used for debugging, validation, exception handling, and tracking.(Inherited from Activity.)

System_CAPS_pubpropertyExpressionText

Gets or set the Visual Basic expression represented by this VisualBasicValue<TResult>.

System_CAPS_pubpropertyId

Gets an identifier that is unique in the scope of the workflow definition.(Inherited from Activity.)

System_CAPS_protpropertyImplementationVersion

Gets or sets the implementation version of the activity.(Inherited from CodeActivity<TResult>.)

System_CAPS_pubpropertyLanguage

Gets the language used for the value.

System_CAPS_pubpropertyRequiresCompilation

Gets whether the value requires compilation.

System_CAPS_pubpropertyResult

Gets or sets the result argument for the Activity<TResult>.(Inherited from Activity<TResult>.)

System_CAPS_pubpropertyResultType

When implemented in a derived class, gets the type of an activity OutArgument.(Inherited from ActivityWithResult.)

NameDescription
System_CAPS_pubmethodCanConvertToString(IValueSerializerContext^)

Determines whether the VisualBasicValue<TResult> can be converted into a String.

System_CAPS_pubmethodConvertToString(IValueSerializerContext^)

Converts the VisualBasicValue<TResult> to a String.

System_CAPS_pubmethodEquals(Object^)

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

System_CAPS_pubmethodGetExpressionTree()

Returns the expression tree for the value.

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_pubmethodShouldSerializeDisplayName()

Indicates whether the DisplayName property should be serialized.(Inherited from Activity.)

System_CAPS_pubmethodToString()

Returns a String that contains the Id and DisplayName of the Activity.(Inherited from Activity.)

This activity uses the LINQ to Entity provider to evaluate LINQ expressions. Any LINQ expressions used with this activity must be evaluatable by the ADO.Net Entity Data Model. For example, LINQ expressions cannot be used to reference activities, variables, or arguments of the workflow itself.

.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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