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<h1>OpenLink Virtuoso Universal Server: Documentation - radio-group</h1>
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<h2>radio-group</h2>
<div class="refpurpose">A group of radio-buttons.</div>
<div class="funcsynopsis">
<span class="funcdef">
<<a href="vc_radio_group.html">
<span class="function">radio-group</span>
</a>
name (required)
annotation (optional)
initial-enable (optional)
enabled (optional)
instantiate (optional)
control-udt (optional)
xsd-stub-xhtml (optional)
width (optional)
height (optional)
error-glyph (optional)
auto-submit (optional)
column (optional)
debug-srcfile (optional)
debug-srcline (optional)
debug-log (optional)
/></span>
</div>
<div class="refsect1">
<div class="refsect1title">Description</div>
<p>
This control is used to group containing radio-buttons in a group.
This ensures that only one button is selected at a time.
Note: This control is not mandatory for making such group of
buttons, another option is to use 'group-name' attribute of the radio-button control.
</p>
</div>
<div class="refsect1">
<div class="refsect1title">Attributes</div>
<div class="formalpara">
<strong>name = <a href="vc_type_SqlName.html">SqlName</a>
</strong>
<p>A page level unique name identifying a control.</p>
</div>
<div class="formalpara">
<strong>annotation</strong>
<p>A human readable comment.</p>
</div>
<div class="formalpara">
<strong>initial-enable = <a href="vc_type_CalculateableValue.html">CalculateableValue</a>
</strong>
<p>Determines whether a control is initially visible. True by default. Could be data-bound to an SQL expression.</p>
</div>
<div class="formalpara">
<strong>enabled = <a href="vc_type_CalculateableValue.html">CalculateableValue</a>
</strong>
<p>Determines whether a control is visible. True by default. Could be data-bound to an SQL expression.</p>
</div>
<div class="formalpara">
<strong>instantiate = <a href="vc_type_CalculateableValue.html">CalculateableValue</a>
</strong>
<p>Determines whether a control instantiate its children. It is true by default. It could be data-bound to an SQL expression. Unlike most of calcucateable attributes, the value of this attribute for a control is calcluated before calling 'on-init' event handler of the control; other values are calculated before calling 'before-data-bind' event handler.</p>
</div>
<div class="formalpara">
<strong>control-udt = <a href="vc_type_SqlName.html">SqlName</a>
</strong>
<p>At run time every control is represented as an instance of some user-defined type (UDT). VSPX compiles selects the UDT to use depending on name of the XML element that represents the control and maybe some of its attributes. In some specific cases the application developer may instruct VSPX compiler to use some other UDT, e.g. an application-specific UDT that is derived from the preset one. If specified, the value of 'control-udt' attribute should be equal to the name of the desired target UDT.</p>
</div>
<div class="formalpara">
<strong>xsd-stub-xhtml</strong>
<p>This attribute is for internal use only. It has no effect if added to the source VSPX file.</p>
</div>
<div class="formalpara">
<strong>width</strong>
<p>Visible width of the control when it is displayed in WYSIWYG tools when the source VSPX text is edited.
The value of this attribute will not be used when the resulting HTML is rendered.</p>
</div>
<div class="formalpara">
<strong>height</strong>
<p>Visible width of the control when it is displayed in WYSIWYG tools when the source VSPX text is edited.
The value of this attribute will not be used when the resulting HTML is rendered.</p>
</div>
<div class="formalpara">
<strong>error-glyph</strong>
<p>The character to be displayed near the resulting HTML input element if the test of v:validator of the element detects an error in the current value of the element.</p>
</div>
<div class="formalpara">
<strong>auto-submit</strong>
<p>Flag to auto submit the parent form if value of the control is changed.</p>
</div>
<div class="formalpara">
<strong>column = <a href="vc_type_SqlName.html">SqlName</a>
</strong>
<p>The name of the column bound.
If nothing else is specified, the column meta data from the
containing update form sets the field's attributes.</p>
</div>
<div class="formalpara">
<strong>debug-srcfile</strong>
<p>URI of the source document where the tag comes from.</p>
</div>
<div class="formalpara">
<strong>debug-srcline</strong>
<p>Line number in the source document where the tag comes from.</p>
</div>
<div class="formalpara">
<strong>debug-log</strong>
<p>This defines what sort of data are saved to the debugging log.
</p>
</div>
</div>
<div class="refsect1">
<div class="refsect1title">Declaration of type vspx_radio_group</div>
<p>
</p>
<div>
<pre class="screen">
create type vspx_radio_group under vspx_field
temporary self as ref
constructor method vspx_radio_group (name varchar, parent vspx_control),
method vc_choose_selected () returns any,
overriding method vc_xrender () returns any,
overriding method vc_set_model () returns any
</pre>
</div>
</div>
<div class="refsect1">
<div class="refsect1title">Examples</div>
<a name="vc_ex_radio_group__0" />
<div class="example">
<div class="exampletitle">
Groups of radio buttons.
</div>
<p>
<?xml version="1.0"?>
<!--
-
- $Id: radio_group__0.vspx,v 1.2 2006/08/16 00:04:15 source Exp $
-
- This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
- project.
-
- Copyright (C) 1998-2006 OpenLink Software
-
- This project is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; only version 2 of the License, dated June 1991.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-
The form contains a groups of radio buttons, grouped with radio-group control.
</p>
<div>
<pre class="screen">
<v:page name="radio_group_demo" xmlns:v="http://www.openlinksw.com/vspx/">
<html>
<body>
<v:form name="sf" type="simple" method="POST">
<v:radio-group name="radio00">
<v:radio-button name="radiob01" value="--'one'" />
<v:radio-button name="radiob02" value="--'two'" />
</v:radio-group>
</v:form>
</body>
</html>
</v:page>
</pre>
</div>
</div>
</div>
<div class="tip">
<div class="tiptitle">See Also: Reference Material in the Tutorial:</div>
<p>
<a href="/tutorial/web/vx_s_2/radio_group.vspx">VX-S-2</a>
</p>
<p>
<a href="/tutorial/web/vx_s_3/update_radio.vspx">VX-S-3</a>
</p>
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