Webclient downloaddata() downloads very slowly

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3.12/5 (3 votes)

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       WebClient web = new WebClient();
       var byt = web.downloaddat(path)

This code download data very slowly even application got stuck or hang.`enter code here.

What I have tried:

I set proxy = null ;
but for first time it not work and second time it works.

Posted 8-Mar-17 0:55am

itisha-systematix

Updated 8-Mar-17 1:16am

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3 solutions

Solution 2

Download speed is a function of the amount of data, the speed of your connection, and the speed of the local and remot host. you could try asynchronous downloading, see WebClient.DownloadData Method (String) (System.Net)[^].

Posted 8-Mar-17 1:08am

Richard MacCutchan

Solution 1

If your application hangs you are probably calling DownloadData from your main (GUI) thread:

WebClient.DownloadData Method (String) (System.Net)[^]:
This method blocks while downloading the resource. To download a resource and continue executing while waiting for the server's response, use one of the DownloadDataAsync[^] methods.

Posted 8-Mar-17 1:06am

Jochen Arndt

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Shashank_Systematix · Accepted Answer · 2017-03-08T01:16:00

Here, try using

WebProxy proxy = WebProxy.GetDefaultProxy()
client.Proxy = proxy;

Or for the first time you can override the timeout function and set timeout for webclient, on timeout call your function again to download data this will solve your issue where it is not working for the first time.

public class WebClientWithTimeout:WebClient
{
    protected override WebRequest GetWebRequest(Uri address)
    {
        WebRequest wr = base.GetWebRequest(address);
        wr.Timeout = 5000; // timeout in milliseconds (ms)
        return wr;
    }
}

Can check this link for more detail : C# Download URL to string or file with timeout using WebClient[^]