Backgroundworker的MessageBox [英] MessageBox from Backgroundworker
问题描述
你好！
我有调用Winform2的Winform1. Winform2显示一个弹出窗口，显示"Parsing ..".然后启动后台工作人员来解析数据.
I have Winform1 that calls Winform2. Winform2 displays a popup that says "Parsing.." and then starts a backgroundworker to parse the data.
backgroundworker调用一个类来解析数据.可能会有例外情况.如果确实发生异常，我想在主UI上显示一个MessageBox并阻止它，直到用户按下确定"为止.
The backgroundworker calls a class to parse the data. There is a potential for exceptions. If an exception does occur, I'd like to display a MessageBox on the main UI and block until the user presses Ok.
借用我在网上找到的摘录，我在主要的WinForm代码中提出了这个建议:
Borrowing snippets I found on the web, I have come up with this in my main WinForm code:
公共静态控件MainForm {get;放; }
public static Control MainForm { get; set; }
public Main()
{
InitializeComponent();
MainForm = this;
}
public Main()
{
InitializeComponent();
MainForm = this;
}
删除void ShowMessageDelegate(字符串消息);
delegate void ShowMessageDelegate(string message);
公共静态void ShowMessage(字符串消息)
{
if(MainForm.InvokeRequired)
{
ShowMessageDelegate d =新的ShowMessageDelegate(ShowMessage);
MainForm.Invoke(d，new object [] {message}); }
其他
{
MessageBox.Show(messge);
}
}
public static void ShowMessage(string message)
{
if(MainForm.InvokeRequired)
{
ShowMessageDelegate d= new ShowMessageDelegate(ShowMessage);
MainForm.Invoke(d, new object[] { message }); }
else
{
MessageBox.Show(messge);
}
}
要调用在后台工作程序上运行的类中的方法，请执行以下操作:
To call the method in my class being run on a backgroundworker, I do the following:
Main.ShowMessage(我的消息");
Main.ShowMessage("my message");
它可以工作，但对我来说似乎不合适.似乎应该有更好的方法.
It works but just doesn't seem right to me. Seems like there should be a better approach.
任何帮助都将不胜感激！！！
Any help would sure be appreciated!!!
我在下面的链接中看到了大卫·莫顿(David M Morton)对类似问题的答复，但我认为这并不是我所要的.
I saw a response by David M Morton on a similar question at the link below but I don't think it's quite what I'm looking for.
谢谢！
推荐答案
发生异常后以及显示MessageBox时，DoWork事件发生了什么?用户按下确定"后会发生什么?
What's going on in the DoWork event after the exception occurs and while the MessageBox is showing? What occurs after the user presses OK?
这篇关于Backgroundworker的MessageBox的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
