Solved

No overload for 'DownloadStringCallback2' matches delegate 'System.Net.DownloadStringCompletedEventHandler'

Posted on 2007-11-19
1
1,236 Views
Last Modified: 2013-12-17
Hi,

I copied this method from MSDN:

http://msdn2.microsoft.com/en-us/library/system.net.webclient.downloadstringcompleted.aspx

        // Sample call : DownloadStringInBackground2 ("http://www.contoso.com/GameScores.html");
        public static void DownloadStringInBackground2(string address)
        {
            WebClient client = new WebClient();
            Uri uri = new Uri(address);

            // Specify that the DownloadStringCallback2 method gets called
            // when the download completes.
            client.DownloadStringCompleted += new DownloadStringCompletedEventHandler(DownloadStringCallback2);
            client.DownloadStringAsync(uri);
        }

        private void DownloadStringCallback2()
        {
            MessageBox.Show("H");
        }

And I'm getting this error message:

Error      1      No overload for 'DownloadStringCallback2' matches delegate 'System.Net.DownloadStringCompletedEventHandler'      ...


What is wrong?
0
Comment
Question by:EEssam
1 Comment
 
LVL 37

Accepted Solution

by:
gregoryyoung earned 500 total points
ID: 20315418
you don't match the proper signature for the delegate http://msdn2.microsoft.com/en-us/library/system.net.downloadstringcompletedeventhandler.aspx

it should be:

        private void DownloadStringCallback2(Object sender,
      DownloadStringCompletedEventArgs e)
        {
            MessageBox.Show("H");
        }
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

This article is for Object-Oriented Programming (OOP) beginners. An Interface contains declarations of events, indexers, methods and/or properties. Any class which implements the Interface should provide the concrete implementation for each Inter…
This article shows how to deploy dynamic backgrounds to computers depending on the aspect ratio of display
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.
Migrating to Microsoft Office 365 is becoming increasingly popular for organizations both large and small. If you have made the leap to Microsoft’s cloud platform, you know that you will need to create a corporate email signature for your Office 365…

863 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

20 Experts available now in Live!

Get 1:1 Help Now