ASP/C# regex for youtube video

Question

I'm having problems adjusting my Regex originally used with Javascript to use with ASP.NET Regular Expression Validator Control. I'm currently using: ``` (?:https?://)?(?:www\.)?(?:youtu\.be/|youtube\.com(?:/embed/|/v/|.*v=))([\w-]{10,12})($|&).* ``` but it doesn't work. (Always returns validation error) I also wanted to know if I can use regex to extract youtube ID from the video URL, and how? Thank you for your time.

Accepted Answer

RegEx for validating a youtube URL and extracting the Video_ID:

```
^(?:https?\://)?(?:www\.)?(?:youtu\.be/|youtube\.com/(?:embed/|v/|watch\?v\=))([\w-]{10,12})(?:$|\&|\?\#).*
```

Escaped RegEx:

```
^(?:https?\:\/\/)?(?:www\.)?(?:youtu\.be\/|youtube\.com\/(?:embed\/|v\/|watch\?v\=))([\w-]{10,12})(?:$|\&|\?\#).*
```

Test here: http://fiddle.re/w1nn6

ASP/C# regex for youtube video

Solution

Problem