C＃正则表达式搜索字符串以查找文本，包括方括号

Question

I would like to search a string for '[E1010]' or '[E1011]' or '[E1012]'. Currently, I can only successfully search without using the brackets []. How can I adjust my regex to include the texting surrounded by the brackets as it is in my sClientError variable.

Thanks!

string sClientErrors = "Bla Blah \"30\" [E1011]\r\nBlah Blah"44\" [E1012]";

    Regex myRegexE10 = new Regex(@"\bE1010\b");
    Regex myRegexE11 = new Regex(@"\bE1011\b");
    Regex myRegexE12 = new Regex(@"\bE1012\b");

    if (myRegexE10.IsMatch(sClientErrors) || myRegexE11.IsMatch(sClientErrors) || myRegexE12.IsMatch(sClientErrors))
    {

           // do code here...

    }

Answer 1

By adding the brackets:

Regex myRegexE10 = new Regex(@"\[E1010]");

or

Regex myRegexE1x = new Regex(@"\[E101[012]]");
if (myRegexE1x.IsMatch(sClientErrors)) { ... 

Note that once you add the brackets, word boundaries are no longer necessary. Note too that you don't need to escape closing square brackets

Answer 2

You can put a "\\" if front of a character you want to include, so you would use:

Regex myRegexE10 = new Regex(@"\[\bE1010\b\]")

You can also use "\\\\" if you needed to find something like "\\s", where "\\*" is a Regex option.