跨线程更新Windows窗体

Posted 2021-02-25

delegate void updateLabelTextDelegate(string newText);
private void updateLabelText(string newText)
        {
            if (lblMessage.InvokeRequired) //lblMessage UI ID
            {
                // this is worker thread
                updateLabelTextDelegate del = new updateLabelTextDelegate(updateLabelText);
                lblMessage.Invoke(del, new object[] { newText });
            }
            else
            {
                // this is UI thread
                lblMessage.Text = newText;
            }
        }