DomainContext.InvokeOperation<TValue> Method (String, Type, IDictionary<String, Object>, Boolean, Action<InvokeOperation<TValue>>, Object)

[WCF RIA Services Version 1 Service Pack 2 is compatible with either .NET framework 4 or .NET Framework 4.5, and with either Silverlight 4 or Silverlight 5.]

Executes an invoke operation.

Namespace:  System.ServiceModel.DomainServices.Client
Assembly:  System.ServiceModel.DomainServices.Client (in System.ServiceModel.DomainServices.Client.dll)

Syntax

'Declaration
Public Overridable Function InvokeOperation(Of TValue) ( _
    operationName As String, _
    returnType As Type, _
    parameters As IDictionary(Of String, Object), _
    hasSideEffects As Boolean, _
    callback As Action(Of InvokeOperation(Of TValue)), _
    userState As Object _
) As InvokeOperation(Of TValue)

'Usage
Dim instance As DomainContext
Dim operationName As String
Dim returnType As Type
Dim parameters As IDictionary(Of String, Object)
Dim hasSideEffects As Boolean
Dim callback As Action(Of InvokeOperation(Of TValue))
Dim userState As Object
Dim returnValue As InvokeOperation(Of TValue)

returnValue = instance.InvokeOperation(operationName, _
    returnType, parameters, hasSideEffects, _
    callback, userState)

public virtual InvokeOperation<TValue> InvokeOperation<TValue>(
    string operationName,
    Type returnType,
    IDictionary<string, Object> parameters,
    bool hasSideEffects,
    Action<InvokeOperation<TValue>> callback,
    Object userState
)

public:
generic<typename TValue>
virtual InvokeOperation<TValue>^ InvokeOperation(
    String^ operationName, 
    Type^ returnType, 
    IDictionary<String^, Object^>^ parameters, 
    bool hasSideEffects, 
    Action<InvokeOperation<TValue>^>^ callback, 
    Object^ userState
)

abstract InvokeOperation : 
        operationName:string * 
        returnType:Type * 
        parameters:IDictionary<string, Object> * 
        hasSideEffects:bool * 
        callback:Action<InvokeOperation<'TValue>> * 
        userState:Object -> InvokeOperation<'TValue> 
override InvokeOperation : 
        operationName:string * 
        returnType:Type * 
        parameters:IDictionary<string, Object> * 
        hasSideEffects:bool * 
        callback:Action<InvokeOperation<'TValue>> * 
        userState:Object -> InvokeOperation<'TValue> 

JScript does not support generic types and methods.

Type Parameters

• TValue
  The type of value that will be returned.

Parameters

• operationName
  Type: System.String
  The name of the operation.

• returnType
  Type: System.Type
  The return type of the operation.

• parameters
  Type: System.Collections.Generic.IDictionary<String, Object>
  Optional parameters to the operation. Specify nulla null reference (Nothing in Visual Basic) if the operation takes no parameters.

• hasSideEffects
  Type: System.Boolean
  true if the operation has side-effects; otherwise, false.

• callback
  Type: System.Action<InvokeOperation<TValue>>
  Optional callback to be called when the operation completes.

• userState
  Type: System.Object
  Optional user state for the operation.

Return Value

Type: System.ServiceModel.DomainServices.Client.InvokeOperation<TValue>
The invoke operation.

Exceptions

Exception	Condition
[ArgumentException]	operationName is empty or nulla null reference (Nothing in Visual Basic).
[ArgumentNullException]	returnType is nulla null reference (Nothing in Visual Basic).

See Also

Reference

DomainContext Class

InvokeOperation Overload

System.ServiceModel.DomainServices.Client Namespace