36 lines
No EOL
1.1 KiB
C#
36 lines
No EOL
1.1 KiB
C#
using System;
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namespace Yavsc.Attributes.Validation
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{
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[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter, AllowMultiple = false)]
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public class YaRequiredAttribute : YaValidationAttribute
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{
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/// <summary>
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/// Gets or sets a flag indicating whether the attribute should allow empty strings.
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/// </summary>
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public bool AllowEmptyStrings { get; set; }
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public YaRequiredAttribute (string msg) : base(msg)
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{
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ErrorMessage = msg;
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}
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public YaRequiredAttribute () : base("RequiredField")
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{
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}
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public override bool IsValid(object value) {
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if (value == null) {
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return false;
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}
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// only check string length if empty strings are not allowed
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var stringValue = value as string;
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if (stringValue != null && !AllowEmptyStrings) {
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return stringValue.Trim().Length != 0;
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}
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return true;
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}
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}
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} |