主题：年龄、身份证、出生年月一致

If e.DataRow.IsNull("partyTime") Then  '入党时间是否为空
           e.DataRow("partyStanding") = Nothing  '如果为空,则清除出生日期
        Else
            Dim d As Date = e.DataRow("partyTime")
            Dim y As Integer = d.year
            If format(d, "MMdd") <= Format(Date.Today, "MMdd") Then
                e.DataRow("partyStanding") = Date.Today.Year - y
            Else
                e.DataRow("partyStanding") = Date.Today.Year - y -1
            End If

         End If