.Net Remoting 2.0在远程调用中访问winform控制值 [英] .Net Remoting 2.0 Accessing winform control value i a remote call

问题描述

大家好，

我在VS-2008中有一个winform应用程序，它是使用.net remoting 2.0的基于客户端服务器的应用程序.

在我的服务器上，我有一个可以从客户端调用的方法.

现在，在这种方法中，我想在我的一个winform中更新Datagrid的值.在这里我得到一个错误:
创建表单时发生错误.有关详细信息，请参见Exception.InnerException.错误是:由于当前线程不在单线程单元中，因此无法实例化ActiveX控件"8856f961-340a-11d0-a96b-00c04fd705a2". "

我尝试使用SetApartmentState将线程转换为STA，但无法执行此操作...

请提供解决方案
问候，
Nitin Verma

Hi All,

I have a winform app in VS - 2008, It is client server based application using .net remoting 2.0.

On My server I have a Method which would be called from client.

Now in this method, I want to update value of Datagrid in one of my winform. Here I am getting an error:
"An error occurred creating the form. See Exception.InnerException for details. The error is: ActiveX control ''8856f961-340a-11d0-a96b-00c04fd705a2'' cannot be instantiated because the current thread is not in a single-threaded apartment."

I tried converting my thread to STA using SetApartmentState but was not able to do so...

Please provide a solution
Regards,
Nitin Verma

推荐答案

.NET要求您使应用程序STA能够使用ActiveX控件.用[STAThread]属性标记您的主要方法.

.NET requires that you make your apps STA to be able to use ActiveX controls. Mark your main method with the [STAThread] attribute.

Shameel建议您使用[STAThread].这并非总是可能的，因为您的应用程序可能需要[MTAThread].在这种情况下，您可以执行以下操作:创建一个单独的线程，并使用System.Threading.Thread.SetApartmentState将其单元状态设置为System.Threading.ApartmentState.STA.您可以在创建线程的线程中执行此操作，而不是在创建的线程中执行，应该在启动线程之前执行该操作.

在新线程的主体中，创建并使用您的ActiveX对象.

参见:
http://msdn.microsoft.com/en-us/library/system.threading. thread.aspx [^ ]，
http://msdn.microsoft.com/en-us/library/system. threading.thread.setapartmentstate.aspx [ ^ ]，
http://msdn.microsoft.com/en-us/library/system.threading. apartmentstate.aspx [ ^ ].

—SA

Shameel recommended you to use [STAThread]. This is not always possible, as your application might require [MTAThread]. In this case, here is what you can do: create a separate thread and set its apartment state to System.Threading.ApartmentState.STA using System.Threading.Thread.SetApartmentState. You can do it in the thread where you create a thread, not in the created thread, and you should do it before the thread is started.

In the body of the new thread, create and use your ActiveX object.

See:
http://msdn.microsoft.com/en-us/library/system.threading.thread.aspx[^],
http://msdn.microsoft.com/en-us/library/system.threading.thread.setapartmentstate.aspx[^],
http://msdn.microsoft.com/en-us/library/system.threading.apartmentstate.aspx[^].

—SA

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