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| Copyright 2004, 2005 The Apache Software Foundation |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
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| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| <document> |
| <properties> |
| <title>Block</title> |
| </properties> |
| <body> |
| |
| <section name="Block"> |
| <p> |
| Contains markup and other components, and defers rendering of its body until invoked |
| by a |
| <a href="renderblock.html">RenderBlock</a> |
| . |
| </p> |
| |
| <p> |
| <strong> |
| See also: |
| <a href="../../apidocs/org/apache/tapestry/components/Block.html"> |
| org.apache.tapestry.components.Block |
| </a> |
| , |
| <a href="renderblock.html">RenderBlock</a> |
| </strong> |
| </p> |
| |
| <section name="Parameters"> |
| |
| |
| <p> |
| <em>No parameters</em> |
| </p> |
| |
| <p> |
| Body: |
| <strong>allowed</strong> |
| </p> |
| |
| <p> |
| Informal parameters: |
| <strong>forbidden</strong> |
| </p> |
| |
| <p> |
| Reserved parameters: |
| <em>none</em> |
| </p> |
| |
| |
| <p> |
| When a |
| <a href="block.html">Block</a> |
| component renders normally, it does absolutely nothing. It doesn't render any |
| tag, or render its body. However, a |
| <a href="renderblock.html">RenderBlock</a> |
| component can be passed a Block instance, which will trigger the Block to render |
| its body. |
| </p> |
| |
| <p> |
| The parameters of the |
| <a href="renderblock.html">RenderBlock</a> |
| , including informal parameters, are indirectly available to the Block |
| component. The OGNL expression components. |
| <em>block</em> |
| .getParameter(" |
| <em>name</em> |
| ") returns the value of a parameter bound to the |
| <a href="renderblock.html">RenderBlock</a> |
| which invoked the rendering of the Block's body. |
| </p> |
| |
| </section> |
| |
| <section name="Example"> |
| |
| |
| <p> |
| The |
| <a href="renderblock.html">RenderBlock</a> |
| component has an extensive example. |
| </p> |
| |
| </section> |
| |
| </section> |
| </body> |
| </document> |
