跨线程操作无效：控制从其创建的线程以外的线程访问的“treeview”。 [英] Cross-thread operation not valid: control 'treeview' accessed from a thread other than the thread it was created on.

问题描述

On client I have a tree node on right click on deploy command which publishes a file to my  server.
So on clicking the tree node I will check if the tree ode name is the same as of file name if same ok else I will try to update the object name through server reply. Which here means I have got the server reply and trying to setting the "Text" but at the time of setting the text here in my case :

BaseObject.GetNodeText(Me.QueryConfig)

 Is getting executed and throwing me error 
"Cross-thread operation not valid: Control 'Treeview' accessed from a thread other than the thread it was created on
"

If Not OverrideDefaultDisplayText Then
                    Text = BaseObject.GetNodeText(Me.QueryConfig)
                Else
                    Text = BaseObject.GUIDisplayAs
                End If

this all happens inside a method called refresh


Can someone please suggest what I need to do



Error:
Cross-thread operation not valid: Control 'Treeview' accessed from a thread other than the thread it was created on

我是什么尝试过：



尝试过使用处理程序但是d idnt为我工作

What I have tried:

have tried using handlers but that didnt worked for me

推荐答案

错误很明确：你只能从UI线程访问控件 - 你的代码没有在UI线程上运行所以你不能直接访问控件。

要做到这一点，你需要调用控件： Control.Invoke方法（委托）（System.Windows.Forms） [ ^ ]

The error is pretty explicit: you can only ever access controls from the UI thread - your code is not running on the UI thread so you cannot directly access the control.
To do that, you need to Invoke the control: Control.Invoke Method (Delegate) (System.Windows.Forms)[^]

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