GreaterThanorEqual and Equal to and LessThanorEqual in ENUM

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Hi all,
i would like to use GreaterThanorEqual and Equal to and LessThanorEqual in ENUM which mean my ENUM will be like below

C#

enum StringCompare { strA_is_less_than_strB <= -1, strAequals_strB = 0, strA_is_greater_than_strB >= 1 }

shall i use something like or is there is any other way to use tlike this?

Posted 15-Jun-14 19:51pm

Gold$Coin

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DamithSL 16-Jun-14 1:54am

what is the purpose of defining enum like this?

Gold$Coin 16-Jun-14 2:07am

so that i can use the ENUM if some result exceeds certain value. as like string Compare as like above example. there was a requirement in my project to dispaly a value like this in datagrid i like to do in this way but ENUM wont support for this so i would like to know if any other possible way to resolve this?

3 solutions

Solution 1

You may use like the following:

C#

enum StringCompare { strA_is_less_than_strB = -1, strAequals_strB , strA_is_greater_than_strB  }

Posted 15-Jun-14 20:01pm

Prasad Avunoori

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Gold$Coin 16-Jun-14 2:08am

what if the given value decresses to -2 so enum wont parse correct

Solution 2

You try it in a strange way. Look at the functions Enum.IsDefined or Enum.GetValues. Unfortunately, there is no Enum.TryParse function, but you could write an Extension method for that.

Posted 15-Jun-14 20:23pm

Bernhard Hiller

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Gold$Coin 16-Jun-14 4:54am

Hope i have told i don't want the exact way. i have asked is there is some other way to achieve my task?

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phil.o · Accepted Answer · 2014-06-15T20:35:00

You are trying to use an enum in a way it has not been made for; each element of the enum has to have an unique, constant value.

What you need is a function returning a value of your enum according to the input. Something like:

C#

enum StringCompare { strA_is_less_than_strB, strAequals_strB, strA_is_greater_than_strB }

public StringCompare GetStringCompare(string lhs, string rhs) {
   // Here you have to define what you mean by string comparison
   // Two strings can be equal or not, but how do you decide whether a string is greater, or lesser, than another one?
   // From their sizes? From the value of the bytes they are composed of?
   return
      (lhs < rhs) ? StringCompare.strA_is_less_than_strB :
      (lhs > rhs) ? StringCompare.strA_is_greater_than_strB :
      StringCompare.strAequals_strB;
}

GreaterThanorEqual and Equal to and LessThanorEqual in ENUM

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