XSD中同一元素的内容限制和属性验证 [英] Content restriction and attribute validation on the same element in XSD

问题描述

我想验证元素测试"应该

I would like to validate that an element 'Test' should

• 对其内容进行限制(例如，使用模式限制)，并且
• 包含某些属性(例如，"id"，"class"和"name").

我正在编写的XSD如下:

The XSD I'm writing looks like this:

<xsd:element name="Test" minOccurs="0" maxOccurs="unbounded">
  <xsd:complexType mixed="true">
    <xsd:simpleContent>
      <xsd:restriction>
        <xsd:pattern value="xyz"/>
      </xsd:restriction>
    </xsd:simpleContent>
    <xsd:attribute name="id" type="xsd:string"></xsd:attribute>
    <xsd:attribute name="class" type="xsd:string"></xsd:attribute>
    <xsd:attribute name="name" type="xsd:string"></xsd:attribute>
  </xsd:complexType>
</xsd:element>

但是，当我在Visual Studio中编写此代码时，在'xsd:attribute'元素上出现以下错误:

However, when I code this in Visual Studio, I get the following error on the 'xsd:attribute' elements:

属性"和内容模型是互斥的

'attribute' and content model are mutually exclusive

有没有办法验证同一元素上的内容限制和属性?

Is there a way to validate both a content restriction and attributes on the same element?

推荐答案

您需要分离出限制条件并为其命名，然后将其称为扩展的基本类型.像这样:

You need to separate out your restriction and give it a name, then refer to it as a base type for an extension. Like this:

  <xsd:simpleType name="RestrictedString">
    <xsd:restriction base="xsd:string">
      <xsd:pattern value="xyz" />
    </xsd:restriction>
  </xsd:simpleType>
  <xsd:element name="Test">
    <xsd:complexType>
      <xsd:simpleContent>
        <xsd:extension base="RestrictedString">
          <xsd:attribute name="id" type="xsd:string" />
          <xsd:attribute name="class" type="xsd:string" />
          <xsd:attribute name="name" type="xsd:string" />
        </xsd:extension>
      </xsd:simpleContent>
    </xsd:complexType>
  </xsd:element>

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