c# - Is there a function that returns index where RegEx match starts? -

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I have a string of 15 characters long, I'm matching regular patterns with some expression on it. I want to know the situation where IsMatch () function return is correct.

Question: Is there a function that returns the index

For multiple matches, you can use a code like this: 

  Reggaex Rx = new Reggae (" as "); Matching matches in Rx ("as in" as ")). {Int i = match.Index;}

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