[英]How to constrain Xml content to a specific length using xsd restrictions?
Using XSD, is it possible to constrain the total text within a Node. 使用XSD,可以将一个节点中的全部文本限制在其中。 In the example below, I want Address Node content to be restricted to 255 characters.
在下面的示例中,我希望地址节点的内容限制为255个字符。
<Address>
<Line1>Text</Line1>
<Line2>Text</Line2>
<City></City>
<Street></Street>
<State></State>
<Country></Country>
</Address>
So, if I only had Line1 and Line2 in my address and City, Street, State and Country were empty, then Line1 could be 254 characters and Line2 will be 1 character. 因此,如果我的地址中只有Line1和Line2,并且City,Street,State和Country为空,则Line1可以为254个字符,而Line2为1个字符。
Is it possible to set such constraints/restrictions within the xsd itself? 是否可以在xsd本身中设置此类约束/约束?
You can constrain the text with a single element to be a given size ie 您可以将单个元素的文本限制为给定的大小,即
<xs:element name="Line1">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:maxLength value="255" />
</xs:restriction>
</xs:simpleType>
</xs:element>
But you can't say Line1 + line2 + City ... < 255. 但是您不能说Line1 + line2 + City ... <255。
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