C# Read from csv-file

Posted on 2009-03-30
Last Modified: 2012-05-06
I want to read a CSV file and put the data into an ArrayList. I use HtmlInputFile. It works fine when the user browse for the file and select the file. It works fine when I test this local on my machine.
But when I test it at the webserver, the filename refer to (for example) C:\myFile.csv but at the server and not the client.
Is it possible to get the file (stream) or filename in codebehind or do I have to use client script/JavaScript?
I want to read the csv file, validate that it is correct and then save the data into a database.
<INPUT id="inputFileName" type="file" runat="server">
protected HtmlInputFile inputFileName;
private void btnValidateFile_Click(object sender, System.EventArgs e)
  if( inputFileName.PostedFile != null )
      // Output no fileName...
protected void LoadFromFile(string _fileName)
  ArrayList RecordList = new ArrayList();
  string[] recordCollection;
  StreamReader cr = new StreamReader(_fileName)
        while (cr.Peek() >=0)
	  string tempString = cr.ReadLine();
	  recordCollection = tempString.Split(';');

Open in new window

Question by:Oskowich
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2

Author Comment

ID: 24020077
.NET 1.1
Visual Studio 2003

Accepted Solution

Oskowich earned 0 total points
ID: 24021310
ArrayList RecordList = new ArrayList();
if (inputFileName.PostedFile != null)
      string[] recordCollection;
      using (System.IO.StreamReader sr = new System.IO.StreamReader(inputFileName.PostedFile.InputStream))
            while (sr.Peek() >=0)
                  string tempString = sr.ReadLine();
                  recordCollection = tempString.Split(';');

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Article by: Ivo
C# And Nullable Types Since 2.0 C# has Nullable(T) Generic Structure. The idea behind is to allow value type objects to have null values just like reference types have. This concerns scenarios where not all data sources have values (like a databa…
Introduction This article series is supposed to shed some light on the use of IDisposable and objects that inherit from it. In essence, a more apt title for this article would be: using (IDisposable) {}. I’m just not sure how many people would ge…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit If you want to manage em…

733 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question