How to specify a min but no max decimal using the range data annotation attribute

Question

I would like to specify that a decimal field for a price must be    0 but I don t really want to impose a max value   Here s what I have so far   I m not sure what the correct way to do this is    Range typeof decimal    0         public decimal Price   get  set

User · Accepted Answer

It seems there s no choice but to put in the max value manually  I was hoping there was some type of overload where you didn t need to specify one    Range typeof decimal    0    79228162514264337593543950335    public decimal Price   get  set

User · Answer

How about something like this    Range 0 0  Double MaxValue  ErrorMessage    The field  0  must be greater than  1        That should do what you are looking for and you can avoid using strings

User · Answer

using Range with   Range typeof Decimal    0    9999   ErrorMessage     0  must be a decimal number between  1  and  2        Range typeof Decimal   0 0    1000000000000000000     Hope it will help

User · Answer

I would put decimal MaxValue ToString   since this is the effective ceiling for the decmial type it is equivalent to not having an upper bound

User · Answer

You can use custom validation        CustomValidation typeof ValidationMethods    ValidateGreaterOrEqualToZero        public int IntValue   get  set          CustomValidation typeof ValidationMethods    ValidateGreaterOrEqualToZero        public decimal DecValue   get  set      Validation methods type   public class ValidationMethods       public static ValidationResult ValidateGreaterOrEqualToZero decimal value  ValidationContext context                bool isValid   true           if  value  lt  decimal Zero                        isValid   false                     if  isValid                        return ValidationResult Success                    else                       return new ValidationResult                  string Format  The field  0  must be greater than or equal to 0    context MemberName                   new List lt string gt      context MemberName

User · Answer

You can use    Min 0     This will impose a required minimum value of 0  zero   and no maximum value   You need DataAnnotationsExtensions to use this

User · Answer

If you re working with prices  I m sure you can safely assume nothing will cost more than 1 trillion dollars   I d use    Range 0 0  1000000000000     Or if you really need it  just paste in the value of Decimal MaxValue  without the commas   79 228 162 514 264 337 593 543 950 335  Either one of these will work well if you re not from Zimbabwe

User · Answer

If you are concerned about the string looking nice you could do this        Range 0  Double PositiveInfinity     This will have a default error message of      The field SuchAndSuch must be between 0 and Infinity

User · Answer

I was going to try something like this    Range typeof decimal     double 0  ToString      double decimal MaxValue  ToString    ErrorMessage    Amount must be greater than or equal to zero       The problem with doing this  though  is that the compiler wants a constant expression  which disallows   double 0  ToString     The compiler will take   Range 0d   double decimal MaxValue  ErrorMessage    Amount must be greater than zero

User · Answer

Range 0 01 100000000 ErrorMessage    Price must be greter than zero

[c#] How to specify a min but no max decimal using the range data annotation attribute?

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