How to get the source of Image using c# regular Expression?

Question

0.00/5 (No votes)

See more:

, +

I used the following code to get Image of the given html.. The asp controls that I used here are TextBox, Image, Button. The event for the button click after providing the website link is as follows..

C#

protected void GetImage_Click(object sender, EventArgs e)
{
string mySite = TextBox1.Text;
WebClient wc = new WebClient();
string getData = wc.DownloadString(mySite);
string result = Regex.Match(getData, "<img.+?src=[\"'](.+?)[\"'].+?>",RegexOptions.IgnoreCase).Groups[1].Value;
Image1.ImageUrl= result;
}

I dont know what's the problem in my code. I am always getting into trouble while I use REGULAR EXPRESSION... Please do suggest me a solution that works fine...

Posted 1-Mar-13 1:05am

Janani Muthaiyan

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2013-03-01T01:27:00

I just tried the regex itself with a sample html file, and it returned the first image URL in the file.

So, you need to look at the way you are downloading the data, and what it actually downloads - it may not be what you think!

BTW: It is a good idea to read the Match into a Match class instance, and check the Success property before trying to access the results. And use named groups rather than anonymous, so you don't have to use magic numbers in your code!