Substring a string from the end of the string

Question

I need to remove two characters from the end of the string   So   string    Hello Marco      must be  Hello Marco   How can I do it

User · Answer

If it s an unknown amount of strings you could trim off the last character by doing  s   s TrimEnd         Trim     Have you considered using a regular expression  If you only want to allow alpha numeric characters you can use regex to replace the symbols  What if instead of a   you get a

User · Answer

You can do   string str    Hello Marco     str   str Substring 0  str Length - 2

User · Answer

C  8 introduced indices and ranges which allow you to write str  2     This is equivalent to str Substring str Length - 2  str Length   In fact  this is almost exactly what the compiler will generate  so there s no overhead  Note that you will get an ArgumentOutOfRangeException if the range isn t within the string

User · Answer

Did you check the MSDN documentation  or IntelliSense   How about the String Substring method   You can get the length using the Length property  subtract two from this  and return the substring from the beginning to 2 characters from the end  For example   string str    Hello Marco     str   str Substring 0  str Length - 2

User · Answer

What about  string s    Hello Marco     s   s Substring 0  s Length - 2

User · Answer

Try this   var s    Hello Marco      var corrected   s Substring 0  s Length - 2

User · Answer

I will trim the end for unwanted characters   s   s TrimEnd              To ensure it works even with more spaces  Or better if you want to ensure it works always  since the input text seems to come from the user   Regex r   new Regex      purged   w  s   w     Match m   r Match  Hello Marco         if  m Success        string result   m Groups  purged   Value      With this you are safer  A purge based on the fact the last two characters has to be removed is too weak

User · Answer

string s    Hello Marco     s   s Remove s length - 2  2

User · Answer

s   s Substring 0  Math Max 0  s Length - 2     to include the case where the length is less than 2

[c#] Substring a string from the end of the string

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