C＃中的[帮助]线程错误 [英] [Help] thread error in C#

问题描述

大家好，我是C＃的初学者。我有函数调用AutoCompleteCBO来自动完成下面的组合框。但是当我在表单Load事件中调用此函数时，系统显示消息：当前线程必须设置为单线程单元（STA）模式才能进行OLE调用。确保您的Main函数标记了STAThreadAttribute。我已经尝试在Program.cs中的main（）顶部添加[STAThread]，但仍然有此错误。请帮助我。

< pre> private  void  AutoCompleteCBO（ ComboBox cbo，DataTable dt， string  rowName）
 {
 
 AutoCompleteStringCollection auto =  new  AutoCompleteStringCollection（）; 
 cbo.AutoCompleteMode = AutoCompleteMode.SuggestAppend; 
 cbo.AutoCompleteSource = AutoCompleteSource.CustomSource; 
  for （ int  i =  0 ; i <  dt.Rows.Count; i ++）
 {
 auto.Add（dt.Rows [i] [rowName]的ToString（））; 
} 
 cbo.AutoCompleteCustomSource = auto; 
 
} 

我的尝试：

我已经尝试在Program.cs的main（）顶部添加[STAThread] 

解决方案

猜测，您的方法是从UI线程以外的线程执行的 - 调用对UI控件（如组合框）的任何访问权限，或者将该代码移回主线程。

HI all, I'm a beginner in C#. I have function call AutoCompleteCBO to autocomplete combobox belows. But when i call this function in form Load event, system show message: Current thread must be set to single thread apartment (STA) mode before OLE calls can be made. Ensure that your Main function has STAThreadAttribute marked on it. I already tried add [STAThread] on the top of the main() in Program.cs but still have this error. Pls help me.

<pre>private void AutoCompleteCBO(ComboBox cbo, DataTable dt, string rowName)
        {
            
                AutoCompleteStringCollection auto = new AutoCompleteStringCollection();
                cbo.AutoCompleteMode = AutoCompleteMode.SuggestAppend;
                cbo.AutoCompleteSource = AutoCompleteSource.CustomSource;
                for (int i = 0; i < dt.Rows.Count; i++)
                {
                    auto.Add(dt.Rows[i][rowName].ToString());
                }
                cbo.AutoCompleteCustomSource = auto;    
           
        }

What I have tried:

I already tried add [STAThread] on the top of the main() in Program.cs 

解决方案

At a guess, your method is being executed from a thread other than the UI thread - either Invoke any access to UI controls such as your combo box, or move that code back to the main thread.

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