c# - Localizing StringLengthValidator does not get the right resource string -

i have following code in datacontract following validation attributes field lastname:

    [datamember]     [required(errormessageresourcetype = typeof(patientdatacontractres),              errormessageresourcename = "lastnamerequired")]     [stringlengthvalidator(1, 50, errormessageresourcename = "lastnamelength"     , errormessageresourcetype = typeof(patientdatacontractres))]     public string lastname { get; set; } 

the required attribute working fine when change culture while running application, stringlengthvalidator seems default resource string. app in english , french , stringlengthvalidator returns english text. both attributes use same resource. why working required attribute?

i solved problem adding cultureinfo in constructor of propertyvalidatorcachekey , fixing propertyvalidationfactory use it

private struct propertyvalidatorcachekey : iequatable<propertyvalidatorcachekey>     {         private type sourcetype;         private string propertyname;         private string ruleset;         private cultureinfo cultureinfo;          public propertyvalidatorcachekey(type sourcetype, string propertyname, string ruleset,    cultureinfo cultureinfo)         {             this.sourcetype = sourcetype;             this.propertyname = propertyname;             this.ruleset = ruleset;             this.cultureinfo = cultureinfo;         }          public override int gethashcode()         {             return this.sourcetype.gethashcode() ^ this.propertyname.gethashcode() ^                    (this.ruleset != null ? this.ruleset.gethashcode() : 0) ^ this.cultureinfo.gethashcode();         }          #region iequatable<propertyvalidatorcachekey> members          bool iequatable<propertyvalidatorcachekey>.equals(propertyvalidatorcachekey other)         {             return (this.sourcetype == other.sourcetype) && (this.propertyname.equals(other.propertyname)) &&                    (this.ruleset == null ? other.ruleset == null : this.ruleset.equals(other.ruleset)) &&                    (this.cultureinfo == other.cultureinfo);         }       }