Extracting values using Regex - C#

I'm not much familiar with Regular expressions.开发者_如何学编程 I've a string from which I need to extract specific values using regex. Here is the string

CN=ReportingGroup {b4f3d644-9361-461e-b604-709fa31f2b9e},OU=DOM USERS,DC=domain,DC=com

I want to get the values of CN and OU namely "ReportingGroup {b4f3d644-9361-461e-b604-709fa31f2b9e}" and "DOM USERS "

from the above string. How can i construct the regex pattern for that?

You don't need a RegEx for this.

If you split the string using , and then each resulting string with =, you can look through the keys in order to extract the value for the CN and the OU keys.

string cn;
string ou;
foreach(string adPortion in myString.Split(new Char [] {','}))
{
   string[] kvp = adPortion.Split(new Char [] {'='})

   if(kvp[0] == "CN")
      cn = kvp[1];

   if(kvp[0] == "OU")
      ou = kvp[1];
}

This assumes that CN and OU only appear once in the string.

Do the following:

new Regex("CN=(?<CN>[^,]*),OU=(?<OU>[^,]*)").Match(str).Groups["CN"].Value;

It looks like your string is pretty well structured. Consider using regular string functions like IndexOf() and Substring(). Regex are harder to read and understand.

If you absolutely want to use Regex, the following code will iterate though all KEY=VALUE pairs:

        foreach (Match m in
            Regex.Matches(inputString, @"[,]*([^=]+)=([^,]*)"))
        {
            string key = m.Groups[1].Value;
            string value = m.Groups[2].Value;
        }