split a string using a open and close tag

I wish to known if exist a clean way to split a string using different tags for opening and ending.

For example:

<&field1&>outside<&field2&>

using the fun开发者_StackOverflowction split:

        string[] dd={"<&","&>"};
        string[] b1 = a1.Split(dd,StringSplitOptions.None);

it show me:

1. 0:
2. 1:field1
3. 2:outside
4. 3:field2
5. 4:

(that it is that i want to do). but also

<&field1<&outside<&field2<&

show the same.

@"\G<&(?<code>.*?)&>"

The TemplateParser in the AspCodeRegex class in System.Web.RegularExpressions uses something similar to this
(answer via @rexm)

You should use a regular expression to do this. After a quick play I came up with this which seems to match the entries within the <& &> delimiters, but you get the idea:

<&([^&]*)&>

See Regular Expression Examples for some more examples and also the code you need to run your regex.