How would I get a little piece of HTML code out of a string? C#

Question

I am trying to get a select HTML field out of my C# application.

The HTML that can come in are as follows...

<HTML>
    <BODY BGCOLOR="#123456">
        HELLO
    </BODY>
</HTML>

This HTML can change anytime, the part of the HTML I want is the value for BGCOLOR eg #123456

or it could be "white", or "red", etc...

How can I do this?

I don't think substring would work as i can't predict how long the field would be.

Thanks

Answer 1

you can use Html Agility Pack for parsing HTML.

So parsing something like BGCOLOR might look like:

var htmlDoc = new HtmlDocument();
htmlDoc.LoadHtml(someHtml);

var body = htmlDoc.DocumentNode.SelectSingleNode("//body");
string bgColor = body.Attributes["bgcolor"].Value;

Answer 2

You need to use an XPath query.

see http://support.microsoft.com/kb/308333

Load the HTML into an XmlDocument and query it using "HTML/BODY@BGCOLOR"

How would I get a little piece of HTML code out of a string? C#

Question

2 answers

solution1
3 ACCPTED 2011-05-06 15:05:21

solution2
2 2011-05-06 15:01:26

How would I get a little piece of HTML code out of a string? C#

Question

2 answers

solution1 3 ACCPTED 2011-05-06 15:05:21

solution2 2 2011-05-06 15:01:26

solution1
3 ACCPTED 2011-05-06 15:05:21

solution2
2 2011-05-06 15:01:26