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namespace Yavsc.Attributes.Validation
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{
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public class YaStringLength: YaValidationAttribute
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{
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public long MinLen { get; set; } = -1;
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private long maxLen;
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public YaStringLength(long maxLen) : base(
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()=>string.Format(
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ResourcesHelpers.GlobalLocalizer["BadStringLength"],
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maxLen))
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{
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this.maxLen = maxLen;
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}
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private long excedent;
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private long manquant;
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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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string stringValue = value as string;
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if (stringValue==null) return false;
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if (MinLen>=0)
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{
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if (stringValue.Length<MinLen)
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{
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manquant = MinLen-stringValue.Length;
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}
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return false;
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}
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if (maxLen>=0)
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{
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if (stringValue.Length>maxLen) {
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excedent = stringValue.Length-maxLen;
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return false;
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}
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}
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return true;
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}
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public override string FormatErrorMessage(string name)
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{
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if (MinLen<0) {
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// DetailledMaxStringLength
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return string.Format(
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ResourcesHelpers.GlobalLocalizer["DetailledMaxStringLength"],
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maxLen,
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excedent);
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} else
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return string.Format(
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ResourcesHelpers.GlobalLocalizer["DetailledMinMaxStringLength"],
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MinLen,
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maxLen,
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manquant,
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excedent);
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}
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}
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}
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