hi, i'm newly migrating to asp.net from php.. i want to convert this PHP code in ASP.net.. i will appreciate the efforts:)

<?
$username = $_POST['username']; // get the username
$username = trim(htmlentities($username)); // strip some crap out of it
$file = '/home/js4hire/public_html/gafyd/data.csv'; // Here's the file. Notice the full path.

echo check_username($file,$username); // call the check_username function and echo the results.

function check_username($file_in,$username){
 $username=strtolower($username);
 $file = file($file_in);
 foreach ($file as $line_num => $line) {
  $line = explode(',',$line);
  $user = trim(str_replace('"','',$line[0]));
  if($username == strtolower($user)){
   return '<span style="color:#f00">Username Unavailable</span>';
  }
 }
 return '<span style="color:#0c0">Username Available</span>';
}
?>

thank U

From the deepest recesses of my memory, it looks like the code takes a submitted value for a user name, then reads a csv file to see if there is a matching entry.  Since ASP.NET is not a language, it's impossible to translate as you have asked, but here's some samples of reading files in C#: http://www.mikesdotnetting.com/Article.aspx?ArticleID=52.

By the way, I'd recommend putting the csv file into the App_Data folder.  That way it can't be browsed to and downloaded.  Where you have it at the moment leaves it completely vulnerable to this. 

well sure i'll c that .... if any1 can convert it to ASP.net with C#, i dunt want 100%, atleast 50-70% of the code?

Well, i myself has converted the code.. thanks for the support guyz.