Regular Expression for any number greater than 0

Question

I m looking for a way to check if a number is greater than 0 using regex   For example    12 would return true 0 would return false

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I think the best solution is to add the   sign between the two brackets of regex expression     1-9   0-9

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Very simple answer to this use this      d

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Another solution     1-9  d      d equivalent to  0-9

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Code      0-9   1-9  0-9      0-9      0     0-9   1-9  0-9       Example  http   regexr com 3anf5  Reference  https   social msdn microsoft com Forums en-US 17089c0f-f9cb-437a-9667-ba8329681624 regular-expression-number-greater-than-0 forum regexp

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I don t know how MVC is relevant  but if your ID is an integer  this BRE should do         1-9  0-9      If you want to match real numbers  floats  rather than integers  you need to handle the case above  along with normal decimal numbers  i e  2 5 or 3 3     cases where your pattern is between 0 and 1  i e  0 25   as well as case where your pattern has a decimal part that is 0   i e  2 0    And while we re at it  we ll add support for leading zeros on integers  i e  005          0  1-9  0-9      0-9     0    0-9   1-9  0-9       Note that this second one is an Extended RE   The same thing can be expressed in Basic RE  but almost everything understands ERE these days   Let s break the expression down into parts that are easier to digest            The caret matches the null at the beginning of the line  so preceding your regex with a caret anchors it to the beginning of the line  The opening parenthesis is there because of the or-bar  below  More on that later         0  1-9  0-9      0-9       This matches any integer or any floating point number above 1   So our 2 0 would be matched  but 0 25 would not   The 0  at the start handles leading zeros  so 005    5                                     The pipe character is an  or-bar  in this context   For purposes of evaluation of this expression  It has higher precedence than everything else  and effectively joins two regular expressions together  Parentheses are used to group multiple expressions separated by or-bars   And the second part                                  0    0-9   1-9  0-9     This matches any number that starts with one or more 0 characters  replace   with   to match zero or more zeros  i e   25   followed by a period  followed by a string of digits that includes at least one that is not a 0   So this matches everything above 0 and below 1                                                            And finally  we close the parentheses and anchor the regex to the end of the line with the dollar sign  just as the caret anchors to the beginning of the line   Of course  if you let your programming language evaluate something numerically rather than try to match it against a regular expression  you ll save headaches and CPU

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1-9    d 1 2  0    0  1-9     1-9 0    1 2  b

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Simplified only for 2 decimal places      s       1-9   d       d 1 2    s     Ref  https   www regextester com 94470

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The simple answer is      1-9  0-9

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If you only want non-negative integers  try    d

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You can use the below expression      d     d  1-9   d       1-9      d                        Valid entries  1  1   1 1  1 0 all positive real numbers  Invalid entries  all negative real numbers and 0 and 0 0

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I think this would perfectly work      1-9  0-9      0-9   1-9    0   0-9   1-9     Valid     1  1 2  1 02  0 1   0 02   Not valid    0 01 01 2 1 10

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there you go   MatchCollection myMatches   Regex Matches yourstring     1-9  0-9        on submit   if myMatches Count  gt  0         do whatever you want

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What about this    1-9  0-9

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I Tried this one and it worked for me for all decimal integer numbers greater than zero  Allows white space    s       1-9   d       d 1 2    s    No white space         1-9   d       d 1 2      Reference  Regex greater than zero with 2 decimal places

[regex] Regular Expression for any number greater than 0?

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