Create text file and download

Question

I\'m trying to write to a text file in memory and then download that file without saving the file to the hard disk. I\'m using the StringWriter to write the con

Answer 1

I had many issues with this. Finnaly found a solution that seems to work everytime.

In most cases the user is going to click a button for the download. At this point it is best to redirect the page back to the same spot. add a parameter in the url that you can grab and read.

example( www.somewhere.com/mypage.aspx?print=stuff)

    


    protected void Page_Load(object sender, EventArgs e) {
        if (Request["print"] == "stuff") { Print("my test content"); }
    }

    /* or pass byte[] content*/
    private void Print(string content ){ 
        Response.ContentType = "text/plain";
        Response.AddHeader("content-disposition", "attachment;filename=myFile.txt");
        // Response.BinaryWrite(content);
        Response.Write(content);
        Response.Flush(); 
        Response.End();
    }

    protected void btn_Click(object sender, EventArgs e) {
        // postbacks give you troubles if using async.
        // Will give an error when Response.End() is called.
        Response.Redirect(Request.Url + "?print=queue");
    }