ZK Developer's Reference/UI Composing/ZUML/XML Namespaces

In a ZUML document, a XML namespace is used to identify either a special functionality or a component set. We call the former as a standard namespace, while the later as a language.

Standard Namespaces

For example, the client namespace is used to identify that a XML attribute shall be interpreted as a client-side control.

In the following example, w:onFocus is a client-side listener since w: is specified, while onChange is

<combobox xmlns:w="client" w:onFocus="this.open()" onChange="doOnChange()"/>

The native namespace is another standard namespace used to indicate a XML element shall be generated natively, rather than a component. For example,

<n:table xmlns:n="native">
  <n:tr>
    <n:td>Username</n:td>
    <n:td><textbox/></n:td>
  </n:tr>
  <n:tr>
    <n:td>Password</n:td>
    <n:td><textbox type="password"/></n:td>
  </n:tr>
</n:table>

where n:table, n:tr and n:td are native, i.e., they are generated directly to the client without creating a component for each of them.

For more information, please refer to ZUML Reference.

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