Method for Download a document file from datatable using c#.net

The following  method is for download a document file from datatable .I am taking a column name as Document.


Write this method in any pageload (or) in any button click event:

     private void download(DataTable dt)

     {

        Byte[] bytes = (Byte[])dt.Rows[0]["Document"];

        Response.Buffer = true;

        Response.Charset = "";

        Response.Cache.SetCacheability(HttpCacheability.NoCache);

        Response.ContentType = dt.Rows[0]["DocumentType"].ToString();

        Response.AddHeader("content-disposition", "attachment;filename="

        + dt.Rows[0]["NameOfDocument"].ToString());

        Response.BinaryWrite(bytes);

        Response.Flush();

        Response.End();

    }