<?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>DateCheck</fullName> 
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    <active>true</active> 
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    <description>验证发货日期是否为空</description> 
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    <errorConditionFormula>ISPICKVAL(Order_type__c, '订单'  )&&  Deliver_date__c = null</errorConditionFormula> 
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    <errorDisplayField>Deliver_date__c</errorDisplayField> 
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    <errorMessage>请选择希望发货日期</errorMessage> 
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</ValidationRule> 
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