17 lines
689 B
C#
17 lines
689 B
C#
using System;
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using System.ComponentModel.DataAnnotations;
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using System.Text.RegularExpressions;
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namespace DxBlazorApplication1.Data.Annotations
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{
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[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter, AllowMultiple = false)]
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public class EmailAttribute : ValidationAttribute
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{
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public override bool IsValid(object value)
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{
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return Regex.IsMatch((string)value, @"^[\w!#$%&'*+\-/=?\^_`{|}~]+(\.[\w!#$%&'*+\-/=?\^_`{|}~]+)*"
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+ "@"
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+ @"((([\-\w]+\.)+[a-zA-Z]{2,4})|(([0-9]{1,3}\.){3}[0-9]{1,3}))$");
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}
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}
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} |