Write New File in Client System through web page

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Hi all,

How can i create a text file in client system (C:\XXX\Config.txt)
when user click on Create Button on my WebPage, i am using
ASP.Net , C#.Net,

please help me.

Thanks
Sudheer.N

Posted 10-May-12 0:47am

Sudheer Nimmagadda

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3 solutions

Solution 2

No you cannot write to the file in the client's machine. Its the security features. Any program executing in the browser executes within the browser sandbox and has access to limited features like printer, cookies etc.

But you cannot write to a file on user's machine. Somebody may use it to write a virus on user's machine. Its restricted.

Check this for a alternative solution..It writes the file as a "Response object" to the user's browser. The user has the choice whether to save it or not to his machine..

http://forums.asp.net/t/544299.aspx/1[^]

Posted 10-May-12 0:56am

bbirajdar

Updated 10-May-12 2:04am

v3

Comments

Sudheer Nimmagadda 10-May-12 7:07am

But i need to copy text file to Client System, please help me, we have some number of clients to for those i need to copy from my server to there local system when user click on Button

bbirajdar 10-May-12 7:59am

Show me one website which does the task of writing files to the user's system and I will write the code for you..

bbirajdar 10-May-12 8:08am

Even if you succeed in doing this through client side scripting or activex controls , the antivirus on the client's machine will now allow this code to execute

Sudheer Nimmagadda 10-May-12 9:11am

Ok i agree with you, thank you very much

Solution 1

Try the below code:

C#

Response.Clear();
Response.Buffer = true;
Response.ContentType = "application/vnd.ms-excel";
Response.AddHeader("Content-Disposition", "attachment;filename="test.xls"");
Response.Charset = "";
this.EnableViewState = false;
System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
System.Web.UI.Html32TextWriter oHtmlTextWriter = new System.Web.UI.Html32TextWriter(oStringWriter);
0Table.RenderControl(oHtmlTextWriter);
Response.Write(oStringWriter.ToString());
Response.End();

This will give prompt the user to open or save test.xls file at the client side.

Edit: B Birajdar-Added the reference link
http://stackoverflow.com/questions/1072814/c-sharp-asp-net-write-file-to-client[^]

Posted 10-May-12 0:54am

Ganesan Senthilvel

Updated 10-May-12 0:58am

v2

Comments

Sudheer Nimmagadda 10-May-12 6:56am

But User Need not to select Path, path is fixed for all clients like (C:\\Test\Config.txt")

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Rahul Rajat Singh · Accepted Answer · 2012-05-10T01:21:00

I don't think it is possible to write on a clients computer. You can save you data in cookies and use these cookies properly if you want to do something in logic using the data in file.

If your requirement is saving the file on disk then you will have to let the user know that he will have to download the file and save it in some location. you will have to provide the file to download in this case.