小编asd*_*jkl的帖子

我想编写一个接受这样的XML文档的模式:

<plugin>
  <label text="blabla" />
  <line />
  <break />
  <textbox name="mytextbox" length="8" required="true" />
  <checkbox name="mycheckbox" checked="true" />
  <combobox name="mycombo">
    <option value="one">Option One</option>
    <option value="two" selected="true">Option One</option>
  </combobox>
  <break />
</plugin>

所以我希望插件包含set {combobox,checkbox,textbox,label,line,break}的元素.我写过这个XSD,但这是错的:

<?xml version="1.0" encoding="utf-8"?>
<xs:schema id="NewDataSet" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
  <xs:element name="plugin">
    <xs:complexType>
      <xs:sequence>
       <xs:choice>
        <xs:element name="line" />
        <xs:element name="break" />
        <xs:element name="label">
          <xs:complexType>
            <xs:attribute name="text" type="xs:string" />
            <xs:attribute name="bold" type="xs:boolean" />
            <xs:attribute name="width" type="xs:positiveInteger" />
          </xs:complexType>
        </xs:element>
        <xs:element name="textbox">
          <xs:complexType>
            <xs:attribute name="name" type="xs:string" />
            <xs:attribute name="width" type="xs:positiveInteger" /> …