cyf
50 lines
1.4 KiB
C#
50 lines
1.4 KiB
C#
using System;
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using System.Reflection;
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namespace Zhaizj.Framework.ORM {
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/// <summary>
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/// 检查对象属性是否已经赋值，如果是字符串类型，empty的字符串也是不合法的
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/// </summary>
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[Serializable]
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public class NotNullAttribute : ValidationAttribute {
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public NotNullAttribute() {
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}
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public NotNullAttribute( String msg ) {
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base.Message = msg;
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}
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public override void Validate( String action, IEntity target, EntityPropertyInfo info, Result result ) {
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Object obj = target.get( info.Name );
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Boolean isNull = false;
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if (info.Type == typeof( String )) {
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if (obj == null) {
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isNull = true;
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}
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else if (strUtil.IsNullOrEmpty( obj.ToString() )) {
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isNull = true;
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}
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}
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else if (obj == null) {
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isNull = true;
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}
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if (isNull) {
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if (strUtil.HasText( this.Message )) {
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result.Add( this.Message );
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}
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else {
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EntityInfo ei = Entity.GetInfo( target );
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String str = "[" + ei.FullName + "] : property \"" + info.Name + "\" ";
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result.Add( str + "can not be null" );
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}
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}
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}
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}
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}
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