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1 using System;
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2
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3 namespace BLToolkit.Validation
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4 {
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5 [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field)]
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6 public class MinDateValueAttribute : MinValueAttribute
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7 {
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8 public MinDateValueAttribute(int year, int month, int day)
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9 : base(new DateTime(year, month, day))
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10 {
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11 }
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12
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13 public MinDateValueAttribute(int year, int month, int day, string errorMessage)
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14 : this(year, month, day)
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15 {
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16 ErrorMessage = errorMessage;
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17 }
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18
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19 public MinDateValueAttribute(int year, int month, int day, bool isExclusive)
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20 : base(new DateTime(year, month, day), isExclusive)
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21 {
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22 }
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23
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24 public MinDateValueAttribute(int year, int month, int day, bool isExclusive, string errorMessage)
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25 : this(year, month, day, isExclusive)
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26 {
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27 ErrorMessage = errorMessage;
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28 }
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29
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30 public override bool IsValid(ValidationContext context)
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31 {
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32 if (context.IsNull(context))
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33 return true;
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34
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35 DateTime contextValue = Convert.ToDateTime(context.Value);
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36 DateTime testValue = (DateTime)GetValue(context);
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37
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38 return testValue < contextValue || !IsExclusive && testValue == contextValue;
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39 }
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40 }
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41 }
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