firsttree4.html

来自「经典Tapestry教程 经典Tapestry教程」· HTML 代码 · 共 65 行

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<html jwcid="@Shell" title="Using The Tapestry Tree Control" stylesheet="ognl:assets.stylesheet"><head jwcid="@Block">    <link rel="stylesheet" type="text/css" href="../css/style.css"/></head><body jwcid="@Body">    <h1>Changing the open and close icons</h1>    <div class="note">        This page demonstrates how to supply custom open and close icons        to the <code>TreeNodeView</code>.    </div>    <p>        It's really quite simple to change the open and close icons in        the tree:    <table border="1">        <tr>            <td valign="top">                <span class="tree" jwcid="treeView">                    <span jwcid="treeDataView">                        <span jwcid="treeNodeView"/>                    </span>                </span>            </td>        </tr>        <tr>            <td colspan="4">               <code class="highlight"><span jwcid="@Insert" value="ognl:lastNodeSelectedMsg"/></code>            <td>        </tr>        </table>    <p>        Here are the relevent snippets from <code>FirstTree4.page</code>        that change the open and close icons:<div class="code"><pre><code class="highlight">    &lt;context-asset name="closeNodeImage" path="images/TreeClosed.gif"/&gt;    &lt;context-asset name="openNodeImage" path="images/TreeOpen.gif"/&gt;</code>    &lt;component id="treeNodeView" type="contrib:TreeNodeView"&gt;        &lt;binding name="treeDataView" expression='components.treeDataView'/&gt;        &lt;binding name="makeNodeDirect" expression="true"/&gt;<code class="highlight">        &lt;binding name="closeNodeImage" expression="assets.closeNodeImage"/&gt;        &lt;binding name="openNodeImage" expression="assets.openNodeImage"/&gt;</code>    &lt;/component&gt;</pre></div><p>    Unfortunately, TreeNodeView does not differentiate between nodes    that have children and leaf nodes.  The same icons will be displayed    for every node.  If this doesn't meet your needs you will have to    create some custom Java classes.<p>    If you do not want open and close icons to be displayed, add the     following binding to the <code>"treeNodeView"</code> component:<div class="code"><pre>    &lt;binding name="showNodeImages" expression="false"/&gt;</pre></div>    <p><a href="#" jwcid="@PageLink" page="Home">Return to Home Page...</a></body></html>

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本页面展示了「经典Tapestry教程 经典Tapestry教程」中的 firsttree4.html 源码文件，采用 HTML 编程语言编写，共 65 行代码。您可以在线阅读完整代码内容，也可以返回资源详情页下载完整源码包进行本地学习和开发。

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