Split string on * character regex

Question

I am attempting to split a string in two on the '*' character, I have the following sentence : This is * test string

and I have written this code

            Regex regex = new Regex(@"\\*");
            string[] substrings = regex.Split(text);

            foreach (string match in substrings)
            {
                Console.WriteLine("'{0}'", match);
            }

But I get the following output:

'T'h'i's' 'i's'....

But I desire:

'This is ' ' test string'

Any ideas how to correct my regex?

Edit : My sentence may have more than one '*' character, in which case i would need three sentences, eg :

This is * test *

Answer 1

"I may have more than one '*' in a sentence, will String.split work?"

Yes, you can achieve what you're trying to do with String.Split() as well:

var text = "This is * test *";

var substrings = text.Split('*');

This will give you an array with three strings.

"This is "

" test "

""

The final string is an empty string, which you can omit by using the method overload that accepts a StringSplitOptions value:

var substrings =
    text.Split(new[] {'*'}, StringSplitOptions.RemoveEmptyEntries);

Answer 2

Remove the double escape from you regular expression:

Regex regex = new Regex(@"\*");

...

Regex regex = new Regex(@"\*");
String text = "This is * test * more * test";
string[] substrings = regex.Split(text);

foreach (String match in substrings)
         Console.WriteLine("'{0}'", match);

Output

'This is '
' test '
' more '
' test'

Answer 3

As per your expected output below code might help:

string text = "This is * test string";
Regex regex = new Regex(@"\*");
string[] substrings = regex.Split(text);
string output = "";
foreach (string match in substrings)
{   
    output += match;
}
Console.WriteLine(output);