Recently I came across a problem where I needed to post a form without any user intervention, kind of like just populate the fields on the go and just submit when the page is ready. It was quite simple to do actually!

Here is the code fragment for the explanation (actually this is not specific to ASP .NET but would work with any kind of HTML Form)

Step 1:

just assign your html form element a name like

< form name="frmsubmitdata" >

</form>

Step 2:

Next, at the end of page add the following JS block:

<script language="javascript">
frmsubmitdata.submit();
</script>

If you find it useful, leave me a comment!

Here is a small code snippet to accomplish it:

        string str = TextBox1.Text;// some text like "go to http://blog.digvijay.eu"
        string patten = @"(http://|https://|[])+([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?";
        Regex chr = new Regex(patten, RegexOptions.IgnoreCase);
        Match m;
        for (m = chr.Match(str); m.Success; m = m.NextMatch())
        {
            string result = m.Groups[0].ToString();
            
            // If no protocol specified it will be with "http://" as default.
            if (result.IndexOf("://") == -1)
                result = "http://" + result; 

            // you may specify nofollow and open in new window and like here
            str = str.Replace(m.Groups[0].ToString(),
            "<a href='" + result + "'  target='_blank' >" + m.Groups[0].ToString() + "</a>");

        }
        return str;

We can use a simple function as below to find all email IDs embedded in a text or html file. I just thought i could share it with everyone:

   1:          private string[] GetEmailsFromMessage(string messageBody)

   2:          {

   3:   

   4:              if (string.IsNullOrEmpty(messageBody) || messageBody.Trim().Length == 0)

   5:                  return string.Empty;

   6:   

   7:              List<string> oEmails = new List<string>();

   8:              Regex regex = new Regex(@"[a-zA-Z][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]",RegexOptions.IgnoreCase | RegexOptions.Compiled | RegexOptions.Multiline);

   9:   

  10:              MatchCollection expressionmatch = regex.Matches(messageBody);

  11:   

  12:              if (expressionmatch.Count > 0)

  13:              {

  14:                  foreach (Match m in expressionmatch)

  15:                      oEmails.Add(m.Value);

  16:              }

  17:              if (oEmails.Count > 0)

  18:                  return oEmails.ToArray();

  19:              else

  20:                  return null;

  21:   

  22:          }