how can i use Messagebox.Show in async method on Windows Phone 8?

Question

Exception generated on MessageBox. How can I use MessageBox in async method?

private async void Purchheard(object sender,EventArgs e)
{
    Debug.WriteLine("Начинаю покупку");
    try
    {
        await CurrentApp.RequestProductPurchaseAsync(ID,false);
        if(license.ProductLicenses[ID].IsActive)
        {
            world.is_freemium=false;
        }
    }
    catch (Exception ex)
    {
        MessageBox.Show("Finished!");
    }
}

Dispatcher.BeginInvoke(() => MessageBox.Show("whatever")); Thank you — Vladislav, Aug 29 '13 at 10:05

score 5 · Answer 1 · edited May 23 '17 at 11:55

5

Not sure why the accepted answer doesn't work, but here is a working example for .NET 4.5

var dg = new Action(() => { MessageBox.Show(msg, name); });
Dispatcher.CurrentDispatcher.BeginInvoke(dg);

Anonymous methods and delegates

CS0120: An object reference is required for the nonstatic field, method, or property 'foo'

edited May 23 '17 at 11:55

Community

1
1

answered May 12 '15 at 00:05

he_the_great

6,554
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28

I also had a requirement not to block the main thread and this worked nicely for me. – grinder22 May 01 '17 at 16:16

score 3 · Accepted Answer · edited Mar 28 '18 at 08:15

3

Dispatcher.BeginInvoke(delegate() { MessageBox.Show("your stuff"); });

edited Mar 28 '18 at 08:15

Gabriel

377
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15

answered Oct 07 '13 at 06:27

gayan1991

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@gayan1991 Cannot convert anonymous method to delegate because it is not a delegate type... Does not work as proposed. – pzogr Aug 13 '16 at 14:01

how can i use Messagebox.Show in async method on Windows Phone 8?

2 Answers2

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