c# - Why does this Regular Expression not return the correct match? -

I am trying to return the part of a string, I want to return everything before the fist slash: / P>

  EC 22 9 41C / 02 / ORI  

I should give: EC 22 9 41C

I created my own expression Used to:

  (EC. +?) \ /.+  

when tested against my text:

  EC22941C / 02 / ORI  

this tells me correctly The first group

  EC22941C  

When I put it in C #:

  public static string GetInstructionRef ( String Supplier ID) {// instruciton ref slash var match = reges. Match (SupplierID, @ "(EC + +) \ / .+") is before; If (match == faucet = match.group.count == 0) returns ""; // Return the first group, which is the reference riff return match. Group [0]. Value; }  

The result I am back is:

  EC22941C / 02 / ORI  

I tried a number

itemprop = "text">

The problem is that you have an incorrect group index Returning, 0 will return the entire match, while returns the matching reference to 1 capturing bracket & mdash; Count from left to right

returns match group 1]. Value;