在Visual Studio C＃winforms中进行线程化 [英] Threading in visual studio C# winforms

问题描述

大家好，



i需要有人帮我做以下事情：

Hi all,

i need someone to help me do the following :

private void btnChangeLength_Click(object sender, EventArgs e)
       {
          <pre>   ComboBox senderComboBox = (ComboBox)sender;
               if (senderComboBox.SelectedIndex > -1)
               {
                   spinner.show();



                   await Task.Run(() => LoadInstitutions());

                   spinner.hide();
                }

//生成新长度的代码

}







我需要做一些线程，所以我会在代码准备好之前显示一个微调器。



我尝试过：

//CODE TO GENERATE NEW LENGTH
}



I need to do some threading so i will show a spinner until the code is ready.

What I have tried:

private void LoadInstitutions()
       {
          this.Invoke((MethodInvoker)delegate ()
           {
               string selectedValue = cmbEnviroment.SelectedItem.ToString().Trim();
               ConnectionClass connectionClass = new ConnectionClass();
               connectionClass.Connection(selectedValue);
            //more code to do

有人可以帮我正确地进行线程化吗？

Can someone help me do the threading properly ?

推荐答案

正如Richard建议的那样，使用ProgressBar - 如果你将它与 BackgroundWorker [ ^ ]然后它变得非常简单，因为worker提供了在UI线程上处理的Progress和Completed事件，因此您可以直接访问ProgressBar并更新它的状态。

As Richard suggested, use a ProgressBar - if you combine that with a BackgroundWorker[^] then it becomes pretty trivial, as the worker provides Progress and Completed events which are handled on the UI thread so you can access the ProgressBar directly and update it's status.

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