我的MessageBox是异步的,但是如何返回DialogResult?
这是我的代码:
class AsyncMessageBox
{
private delegate void ShowMessageBoxDelegate(string strMessage, string strCaption, MessageBoxButtons enmButton, MessageBoxIcon enmImage);
// Method invoked on a separate thread that shows the message box.
private static void ShowMessageBox(string strMessage, string strCaption, MessageBoxButtons enmButton, MessageBoxIcon enmImage)
{
MessageBox.Show(strMessage, strCaption, enmButton, enmImage);
}
// Shows a message box from a separate worker thread.
public void ShowMessageBoxAsync(string strMessage, string strCaption, MessageBoxButtons enmButton, MessageBoxIcon enmImage)
{
ShowMessageBoxDelegate caller = new ShowMessageBoxDelegate(ShowMessageBox);
caller.BeginInvoke(strMessage, strCaption, enmButton, enmImage, null, null);
}
}
如果要使用非阻塞消息框的对话框结果,并根据结果执行作业:
Task.Run(() =>
{
var dialogResult= MessageBox.Show("Message", "Title", MessageBoxButtons.OKCancel);
if (dialogResult == System.Windows.Forms.DialogResult.OK)
MessageBox.Show("OK Clicked");
else
MessageBox.Show("Cancel Clicked");
});
注意:
Task.Run
之后的代码将立即运行,而不考虑消息框。