Regex in c#

[Nightcrawler]

I am building a web page where people can link in a youtube video by
copying and pasting the link that is provided by youtube. How can I
use a regular expression to capture the URL only from the link below:

<object width="425" height="355"><param name="movie" value="http://
www.youtube.com/v/xSqNx7vJLDE&rel=1"></param><param name="wmode"
value="transparent"></param><embed src="http://www.youtube.com/v/
xSqNx7vJLDE&rel=1" type="application/x-shockwave-flash"
wmode="transparent" width="425" height="355"></embed></object>

Thanks

[Brian Muth]

Regex r = new Regex ("src=\"(?<YouTube>http://www\\.youtube\\.com\\S*)\"");
Match s = r.Match("<object width=\"425\" height=\"355\"><param name=\"movie\"
value=\"http://www.youtube.com/v/xSqNx7vJLDE&rel=1\"></param><param name=\"wmode\"value=\"transparent\"></param><embed
src=\"http://www.youtube.com/v/xSqNx7vJLDE&rel=1\" type=\"application/x-shockwave-flash\"wmode=\"transparent\" width=\"425\"
height=\"355\"></embed></object>");

Console.Write(s.Groups["YouTube"]);

Watch out for unintended line-breaks.

Brian

[Nightcrawler]

On Nov 9, 1:54 pm, "Brian Muth" <[e-mail]:

Regex r = new Regex ("src=\"(?<YouTube>http://www\\.youtube\\.com\\S*)\"");
Match s = r.Match("<object width=\"425\" height=\"355\"><param name=\"movie\"
value=\"http://www.youtube.com/v/xSqNx7vJLDE&rel=1\"></param><param name=\"wmode\"value=\"transparent\"></param><embed
src=\"http://www.youtube.com/v/xSqNx7vJLDE&rel=1\" type=\"application/x-shockwave-flash\"wmode=\"transparent\" width=\"425\"
height=\"355\"></embed></object>");

Console.Write(s.Groups["YouTube"]);

Watch out for unintended line-breaks.

Brian

Brian,

Thanks! How do I use this in a regularexpression validator in my aspx
file. There is a problem using quotation marks within the
ValidationExpression="" property.

Thanks

[Jesse Houwing]

Hello Nightcrawler,

On Nov 9, 1:54 pm, "Brian Muth" <[e-mail]:

>Regex r = new Regex
("src=\"(?<YouTube>http://www\\.youtube\\.com\\S*)\"");

Match s = r.Match("<object width=\"425\" height=\"355\"><param
name=\"movie\"

value=\"http://www.youtube.com/v/xSqNx7vJLDE&rel=1\"></param><param
name=\"wmode\"value=\"transparent\"></param><embed

src=\"http://www.youtube.com/v/xSqNx7vJLDE&rel=1\"
type=\"application/x-shockwave-flash\"wmode=\"transparent\"
width=\"425\"

height=\"355\"></embed></object>");

Console.Write(s.Groups["YouTube"]);

Watch out for unintended line-breaks.

Brian

Brian,

Thanks! How do I use this in a regularexpression validator in my aspx
file. There is a problem using quotation marks within the
ValidationExpression="" property.

Write them as &quot; I guess... Or set the value through the designer.

Jesse

--
Jesse Houwing
jesse.houwing at sogeti.nl