Question

In one of my classes, I have got code:

    private static void Notify(string url, string author, string mess)
    {
        Toast slice = new Toast(100000, url, author, mess) { Height = 90 };
        slice.Show();
        return;
    }

    public void Job()
    {
        Notify("http://google.com", "username", "hi all");
        while (true)
        {
            if (Run() == false)
                break;
        }
        /* .... */
    }

Notify function is displays a small box with my text. it works well, but if it comes after a loop, then the program hangs. ie if after Notify("http://google.com", "username", "hi all"); add return;, program will not hang.

I tried to make this function in another thread, but then for some reason it does not work properly and displays a “white list”. What am I doing wrong and what you can do in this situation? Sorry for bad English.

Answer 1

From what’s been said in the comments, I may have a solution for you.

First, be sure you are calling Job() from the main UI thread. For example, directly in a UI object Event Handler, or within a call to a UI object’s Invoke() method.

Then I would change your code as follows:

private static void Notify(string url, string author, string mess)
{
    using(Toast slice = new Toast(100000, url, author, mess) { Height = 90 })
    {
        slice.ShowDialog();
    }
}

public void Job()
{
    Notify("http://google.com", "username", "hi all");
}

Note that I remove the loop entirely, and I use ShowDialog() to prevent further interaction with the program until the slice window is closed.

I’ve also put slice in a using() block, because it should have Dispose() called when you are done with it.