ClientBase<TChannel>.InvokeAsync 方法
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
支持实现基于事件的异步模式。 有关此模式的详细信息，请参阅 基于事件的异步模式概述。
protected:
void InvokeAsync(System::ServiceModel::ClientBase<TChannel>::BeginOperationDelegate ^ beginOperationDelegate, cli::array <System::Object ^> ^ inValues, System::ServiceModel::ClientBase<TChannel>::EndOperationDelegate ^ endOperationDelegate, System::Threading::SendOrPostCallback ^ operationCompletedCallback, System::Object ^ userState);protected void InvokeAsync(System.ServiceModel.ClientBase<TChannel>.BeginOperationDelegate beginOperationDelegate, object[] inValues, System.ServiceModel.ClientBase<TChannel>.EndOperationDelegate endOperationDelegate, System.Threading.SendOrPostCallback operationCompletedCallback, object userState);member this.InvokeAsync : System.ServiceModel.ClientBase<'Channel (requires 'Channel : null)>.BeginOperationDelegate * obj[] * System.ServiceModel.ClientBase<'Channel (requires 'Channel : null)>.EndOperationDelegate * System.Threading.SendOrPostCallback * obj -> unitProtected Sub InvokeAsync (beginOperationDelegate As ClientBase(Of TChannel).BeginOperationDelegate, inValues As Object(), endOperationDelegate As ClientBase(Of TChannel).EndOperationDelegate, operationCompletedCallback As SendOrPostCallback, userState As Object)参数
- beginOperationDelegate
- ClientBase<TChannel>.BeginOperationDelegate
用于调用异步操作的委托。
- inValues
- Object[]
异步调用的输入值。
- endOperationDelegate
- ClientBase<TChannel>.EndOperationDelegate
一个委托，用于在异步调用完成后结束。
- operationCompletedCallback
- SendOrPostCallback
在异步方法完成时调用的客户端提供的回调。 回调传递给 ClientBase<TChannel>.BeginOperationDelegate.
- userState
- Object
要 userState 与异步调用关联的对象。
注解
在每次调用userState的参数中InvokeAsync(ClientBase<TChannel>.BeginOperationDelegate, Object[], ClientBase<TChannel>.EndOperationDelegate, SendOrPostCallback, Object)提供唯一值（如 GUID 或哈希代码），并在每个操作完成时，事件处理程序可以确定引发完成事件的操作实例。
