| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> |
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| <title>contrib:FormConditional</title> |
| <link rel="stylesheet" type="text/css" href="Tapestry.css" title="style"> |
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| <td align="right"><a href="contrib.FormTable.html"><img alt="contrib:FormTable" src="common-images/next.png"></a></td> |
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| <table border="0" cellpadding="4" cellspacing="4" width="100%"> |
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| <td><font size="+2"><b>contrib:FormConditional</b></font></td> |
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| <tr> |
| <td> <A href="../api/org/apache/tapestry/contrib/form/FormConditional.html">org.apache.tapestry.contrib.form.FormConditional</a> |
| </td> |
| </tr> |
| </table> |
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| <td> |
| <table align="right" valign="middle" bgcolor="#c0c0c0" cellpadding="8"> |
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| <td> Non Visual Component</td> |
| </tr> |
| </table> |
| </td> |
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| <td colspan="2"> </td> |
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| <p><b>Description</b> <br> |
| FormConditional is a variant of <a href="Conditional.html">Conditional</a> |
| designed to be used in a <a href="Form.html">Form</a>, similar to |
| the relationship between <a href="Foreach.html">Foreach</a> and |
| <a href="ListEdit.html">ListEdit</a>. It is used to guarantee that |
| the data will be the same during rendering and rewind when a form |
| is submitted avoiding a stale link.<br> |
| On render, FormConditional reads condition parameter, stores it |
| into a hidden field, and could render or not according to condition |
| value. On rewind, the FormConditional ignores condition parameter, |
| reads the stored value, and could render or not matching previous |
| render.</p> |
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| <td colspan="2"> |
| <b>See Also</b> |
| <br> |
| <A href="Conditional.html">Conditional</a>, |
| <A href="Form.html">Form</a> |
| </td> |
| </tr> |
| |
| <tr> |
| <td colspan="2"> |
| <b>Parameters</b> |
| <br> |
| <table border="1" cellpadding="4" cellspacing="4" class="parameters"> |
| <tr> |
| <th>Name</th> |
| <th>Type</th> |
| <th>Direction</th> |
| <th>Required</th> |
| <th>Default</th> |
| <th>Description</th> |
| </tr> |
| <tr> |
| <td>condition</td> |
| <td>boolean</td> |
| <td>in</td> |
| <td>yes</td> |
| <td> </td> |
| <td>The condition to evaluate.</td> |
| </tr> |
| <tr> |
| <td>element</td> |
| <td>String</td> |
| <td>in</td> |
| <td>no</td> |
| <td> </td> |
| <td>The element to emulate.</td> |
| </tr> |
| <tr> |
| <td>listener</td> |
| <td>String</td> |
| <td>in</td> |
| <td>no</td> |
| <td> </td> |
| <td>The listener, informed <u></u>at render.</td> |
| </tr> |
| <tr> |
| <td>conditionValue</td> |
| <td>boolean</td> |
| <td>custom</td> |
| <td>no</td> |
| <td> </td> |
| <td>The value of the condition. During render this is obtained |
| from the condition parameter. During rewind it is the submitted |
| condition.</td> |
| </tr> |
| </table> |
| <p> Body: <strong>rendered</strong><br> |
| Informal parameters: <strong>allowed</strong><br> |
| Reserved parameters: <em>invert</em></p> |
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| <b>Examples</b> |
| <p> |
| This example is under construction. |
| </p> |
| |
| |
| </td></tr></table> |
| </td></tr> |
| <tr> |
| <td colspan="3"><hr></td> |
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| <td align="right"><a href="contrib.FormTable.html"><img alt="contrib:FormTable" src="common-images/next.png"></a></td> |
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