Regex to get NUMBER only from String

Question

I recieve  7   or  5   or   5  from XML and wants to extract only the number from string using Regex  e g Regex Match   function          stringThatHaveCharacters   stringThatHaveCharacters Trim            Match m   Regex Match stringThatHaveCharacters   WHAT I USE HERE            int number   Convert ToInt32 m Value           return number

User · Accepted Answer

d    d represents any digit    for one or more  If you want to catch negative numbers as well you can use -  d    Note that as a string  it should be represented in C  as    d    or    d

User · Answer

The answers above are great   If you are in need of parsing all numbers out of a string that are nonconsecutive then the following may be of some help   string input    1-205-330-2342   string result   Regex Replace input       d         Console WriteLine result       gt  gt  12053302342

User · Answer

Either  0-9  or  d1 should suffice if you only need a single digit  Append   if you need more     1 The semantics are slightly different as  d potentially matches any decimal digit in any script out there that uses decimal digits

[c#] Regex to get NUMBER only from String

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