c# - 跨线程操作无效: Control 'statusStrip' accessed from a thread other than the thread it was created on

Question

我已经尝试过了。
https://stackoverflow.com/a/142069/2126472

像toolStripStatusLabel1.InvokeRequired
但toolStripStatusLabel1没有InvokeRequired
我也尝试过
https://stackoverflow.com/a/15831292/2126472

它像无效参数上的错误
SetTextCallback d = new SetTextCallback(SetText); form.Invoke(d, new object[] { form, ctrl, text });
当我使用ThreadHelperClass.SetText(this, toolStripStatusLabel1, "This text was set safely.");
但是当我使用textBox时没有错误

我的代码中有一个方法等待bool来自另一个使用Thread在后台运行的方法。

Thread t = new Thread(TestRemoteDB);
t.Start();
// In TestRemoteDB() will call updateRemoteDBStatus()

像这样

private void updateRemoteDBStatus(bool successful)
        {
            if (successful)
            {
                toolStripStatusLabel4.Text = "OK!";
                toolStripStatusLabel4.ForeColor = Color.Green;
            }
            else
            {
                toolStripStatusLabel4.Text = "Error!";
                toolStripStatusLabel4.ForeColor = Color.Red;
            }
        }

Answer 1

试试这个:

this.BeginInvoke((Action)(() => toolStripStatusLabel1.Text = "This text was set safely."));