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ASP.Net: Export to text/csv file and save with save file dialog in C#.

In my last example I had demonstrated the export to excel in C#, and keeping up my promise now I’ll show you how to export data to text or csv file. For this example I’ll use same “GetData” method which we had used in Export to Excel example.

/// <summary>
/// Export to text/csv
/// </summary>
private void ExportTextFile()
{
    var records = GetData();
    var sb = new StringBuilder();
    sb.AppendLine("First Name\tLast Name\tEmail Address\tCity");
    foreach (var record in records)
    {
        sb.AppendFormat("{0}\t{1}\t{2}\t{3}"
            , record.FirstName
            , record.LastName
            , record.Email
            , record.City);
        sb.AppendLine();
    }

    //Get current response
    var response = HttpContext.Current.Response;
    response.BufferOutput = true;

    //clear response
    response.Clear();
    response.ClearHeaders();
    response.ContentEncoding = Encoding.Unicode;

    //For csv export give file name as "Test_Data.csv"
    response.AddHeader("content-disposition", "attachment; filename=Test_Data.txt");
    response.ContentType = "text/plain";
    response.Write(sb.ToString());
    response.End();
}

And we can check output of our work as:


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Comments

  1. darichkidMarch 26, 2013 at 6:02 PM

    Tada

    This is an excellent component for verifying email addresses:
    http://www.kellermansoftware.com/p-37-net-email-validation.aspx

    ReplyDelete
  2. AnonymousMay 8, 2013 at 4:31 PM

    Its giving me error "Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack."

    I am using this code in Class file

    ReplyDelete
    Replies
    1. SandeepMay 12, 2013 at 9:10 AM

      Hi It's look like you are getting this error, on Response.End, either put this line in try catch block or try to use "HttpContext.Current.ApplicationInstance.CompleteRequest", for more information check this link http://support.microsoft.com/kb/312629/en-us

      or you can see working sample here http://sandeep-tada.blogspot.in/2012/12/export-sample-series-in-c-aspnet.html

      Delete

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