26 lines
923 B
C#
26 lines
923 B
C#
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using PhoneToolMX.Models.ViewModels;
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using System.ComponentModel.DataAnnotations;
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using System.Data;
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namespace PhoneToolMX.Models
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{
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public class CheckExtensionsAttribute : ValidationAttribute
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{
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private int? MaxExtensions;
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public override string FormatErrorMessage(string name)
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{
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return MaxExtensions != null
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? $"Up to {MaxExtensions} extensions can be assigned to this phone"
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: "Too many extensions assigned to this phone";
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}
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public override bool IsValid(object value)
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{
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if (value is not PhoneVM phone) throw new ConstraintException($"{GetType().Name} is only allowed for PhoneVM");
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if (phone.MaxExtensions <= 0 || phone.Extensions == null) return true;
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MaxExtensions = phone.MaxExtensions;
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return !(phone.Extensions.Count > phone.MaxExtensions);
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}
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}
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}
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