<?xml version="1.0" encoding="UTF-8"?> 
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<ValidationRule xmlns="http://soap.sforce.com/2006/04/metadata"> 
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    <fullName>testRule</fullName> 
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    <active>true</active> 
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    <errorConditionFormula>ISPICKVAL(Behavior__c , 'A') && ISBLANK(  Diagnosis__c )</errorConditionFormula> 
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    <errorDisplayField>FaultNumber__c</errorDisplayField> 
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    <errorMessage>使用状况为A时故障编号不能为空</errorMessage> 
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</ValidationRule> 
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