How in the field of representation to limit the introduction of the maximum number?

Question

User has coins. Their number in the field should not exceed their number in the database.

coin.cshtml:

@Html.EditorFor(model => model.coin)

User coins are specified in the database (I can get the coin value of the user in the CoinController controller)

 public class Coin { [Key] public int id { get; set; } public double coins { get; set; }

free_ze free_ze 7,933 12 silver marks 30 bronze marks · Answer 1 · 2017-03-15T11:40:40

You will not believe, but RangeAttribute

free_ze

7,933 12 silver marks 30 bronze marks

This will limit the maximum possible number of models. But the user may have a smaller number. - codename0082016
@ codename0082016 Why? The maximum and minimum is set if I understand you correctly. Or you want to calculate restriction in runtime? In this case, you need a custom model binder, which will add a model state error in which case. - free_ze
@ codename0082016 In general, this is already a business rule that should be checked at the level of business logic (at least the backend, but also at the front can be). - free_ze

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