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Home/ Questions/Q 4261120
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Editorial Team
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Editorial Team
Asked: May 21, 20262026-05-21T06:00:46+00:00 2026-05-21T06:00:46+00:00

I have problem in writing the code in windows form application my problem is

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I have problem in writing the code in windows form application my problem is
I need to write

private static void DownloadFiles(IEnumerable<string> filenames, 
    string uri, string localPath, string user, string password)

However, when I write it, I get the following error:

'WindowsFormsApplication10.Form1' does not contain a definition for 'Form1_Load' and no extension method 'Form1_Load' accepting a first argument of type 'WindowsFormsApplication10.Form1' could be found (are you missing a using directive or an assembly reference?) C:\Documents and Settings\Administrator\My Documents\Visual Studio 2008\Projects\WindowsFormsApplication10\WindowsFormsApplication10\Form1.Designer.cs  

Please help me
Thanks in advance

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  1. Editorial Team
    Editorial Team
    2026-05-21T06:00:47+00:00Added an answer on May 21, 2026 at 6:00 am

    This is normally because you have managed to get the IDE to generate a form load event handler (by double clicking on the form), and have deleted the method without deleting the designer generated code to link the method with the event.

    If you go to Form1.Designer.cs you should see a line that looks like this:

    this.Load += new System.EventHandler(this.Form1_Load);
    

    Delete this line.

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