Removing brackets

Consider:

string value = "htt开发者_如何学运维p://url.com/index?foo=[01234]&bar=1";

I need to remove the [ ], brackets.

I tried

value = value.Replace("[01234]", "1234");

and this didn't work.

Should I look into a regular expression?

EDIT

I can't do only [ or ] because string can contain more than one, [ or ]. I just want foo = [blah] to be replaced with foo = blah**.

You could just do -

value = value.Replace("[", "").Replace("]", "");

EDIT

Or with a regex (not tested) -

    Regex regexObj = new Regex(@"(foo=)\[([0-9A-Za-z]+)\]");
    value = value.Replace(subjectString, "$1$2");

value = value.Replace("[","").Replace("]","");

You probably don't need regex. A simple string replace would do it:

using System;
using System.Web;

class Program
{
    static void Main()
    {
        string value = "http://url.com/index?foo=[01234]&bar=1";
        var uriBuilder = new UriBuilder(value);
        var query = HttpUtility.ParseQueryString(uriBuilder.Query);
        query["foo"] = query["foo"].Replace("[", "").Replace("]", "");
        uriBuilder.Query = query.ToString();
        value = uriBuilder.ToString();

        Console.WriteLine(value);
    }
}

This will ensure that only the brackets of the foo parameter will be removed.

I'd go with a Regex:

var value = "http://url.com/index?foo=[01234]&bar=1"; 
value = Regex.Replace(value, "foo=\\[(.*?)\\]","foo=$1");