有什麼辦法來構建System.Web.Services.Protocols.InvokeCompletedEventArgs？

這可能是一個愚蠢的問題，因爲我對這裏使用的所有技術（C＃，.NET和SOAP）都很陌生。無論如何，我不想在這裏做我想做的事。有什麼辦法來構建System.Web.Services.Protocols.InvokeCompletedEventArgs？

我有一個異步的SOAP調用（從WSDL生成的代碼），我試圖改變，在我的圖書館，我實際上是多次調用多個不同的Web服務器，然後聚合結果返回給調用者。問題是異步SOAP調用的SendOrPostCallback方法需要接受InvokeCompletedEventArgs的參數。我不能構造這個，因爲構造函數是內部聲明的。因此，儘管我可以隱藏我在內部做的事情，並且在我正在做的事情完成時調用回調函數，但我無法將結果返回給調用者。有什麼建議麼？

舊代碼：

public void getStatusesAsync(RequestId[] requestIds, object userState) 
{ 
    if ((this.getStatusesOperationCompleted == null)) 
    { 
    this.getStatusesOperationCompleted = new System.Threading.SendOrPostCallback(this.OngetStatusesOperationCompleted); 
    } 
    this.InvokeAsync("getStatuses", new object[] { 
        requestIds}, this.getStatusesOperationCompleted, userState); 
} 

private void OngetStatusesOperationCompleted(object arg) 
{ 
    if ((this.getStatusesCompleted != null)) 
    { 
    System.Web.Services.Protocols.InvokeCompletedEventArgs invokeArgs = ((System.Web.Services.Protocols.InvokeCompletedEventArgs)(arg)); 
    this.getStatusesCompleted(this, new getStatusesCompletedEventArgs(invokeArgs.Results, invokeArgs.Error, invokeArgs.Cancelled, invokeArgs.UserState)); 
    } 
}

新代碼：

public void getStatusesAsync(RequestId[] requestIds, object userState) 
{ 
    if ((this.getStatusesOperationCompleted == null)) 
    { 
    this.getStatusesOperationCompleted = new System.Threading.SendOrPostCallback(this.OngetStatusesOperationCompleted); 
    } 
    asyncExecuteMultipleSoapCalls("getStatuses", new object[] { requestIds}, this.getStatusesOperationCompleted, userState); 
} 

private System.IAsyncResult asyncExecuteMultipleSoapCalls(string methodName, object[] args, System.Threading.SendOrPostCallback callback, object asyncState) 
{ 
    Thread backgroundSoapCalls = new Thread(new ParameterizedThreadStart(asyncThreadRun)); 
    object[] threadArgs = new object[] { methodName, args, callback, asyncState }; 
    backgroundSoapCalls.Start(threadArgs); 
    return null;//How to return AsyncResult? 
} 

private RequestStatus[] multiSoapCallResults = null; 

private void asyncThreadRun(object args) 
{ 
    string methodName = (string)(((object[])args)[0]); 
    object[] methodArgs = (object[])(((object[])args)[1]); 
    System.Threading.SendOrPostCallback methodCallback = (System.Threading.SendOrPostCallback)(((object[])args)[2]); 
    object asyncState = (((object[])args)[3]); 

    //To make a long story short, I'm using this thread to execute synchronous 
    //SOAP calls, then call the event. The reason is that different requestIds 
    //in the passed in array may reside on different Web Servers. Hopefully, 
    //this will work similarly to the original Asynchronous call 
    multiSoapCallResults = executeMultipleSoapCalls(methodName, methodArgs); 

    //Now that I'm done, I want to pass the evenArgs to the SendOrPostCallback 
    RequestStatus[] returnStatusArray = new RequestStatus[multiSoapCallResults.Length]; 
    multiSoapCallResults.CopyTo(returnStatusArray, 0); 
    multiSoapCallResults = null; 

    //This line doesn't compile of course, which is the problem 
    System.Web.Services.Protocols.InvokeCompletedEventArgs eventArgs = new System.Web.Services.Protocols.InvokeCompletedEventArgs(null, false, null, returnStatusArray); 

    //Need to pass event args here 
    methodCallback(eventArgs); 
}

來源

2011-09-30 Mutmansky

一直在想這個。可能我可以添加自己的事件類型並覆蓋/更改事件處理程序和回調。然後，我可以避免必須完全構建這種特定類型的事件。這會破壞這個庫的客戶端代碼，可能正在監聽事件並使用相應的委託，但是如果他們嘗試使用「舊」版本，我可能會棄用舊版本和/或提供一些有意義的反饋。 – Mutmansky

原來這是一個愚蠢的問題。 wsdl世代已經將這個InvokeCompletedEventArgs子類化了。我在上面的評論中建議的類已經存在於生成的代碼中。我只需要找到它。

來源

2011-10-03 13:06:15 Mutmansky

有什麼辦法來構建System.Web.Services.Protocols.InvokeCompletedEventArgs？

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