c# - 在 BackgroundWorker DoWork 事件中读取 ComboBox 值时出错

Question

当我在 BackgroundWorker DoWork 事件中访问 Form 控件时，它从 DatePicker 而不是从 TextBox 读取值或组合框

错误:

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

代码:

private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
    {
        string strDate = dtpDate.Value.ToString();

        string strProgram = cmbProgram.Text;

    }

它如何从 DataPicker 中读取值(在不同的线程中)？

是否有任何解决方法可以从 BackgroundWorker DoWork 事件访问表单控件？

Answer 1

使用:

Dispatcher.Invoke(new Action(() =>
           {
                string strDate = dtpDate.Value.ToString();
                string strProgram = cmbProgram.Text;

           }));