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-->  <!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"><concept id="GUID-40CA47C0-76F9-42FE-AF9D-0B1BF42ACCB7" xml:lang="en"><title>Compound
controls</title><prolog><metadata><keywords></keywords></metadata></prolog><conbody>
<p>A simple control is one that contains no other control. The term <i>compound
control</i> or <i>container</i> refers to a control that contains one or more
other controls. The contained controls may themselves be compound controls.
When a control is contained in a compound control it is called a component
control. Compound controls can be used to group non-window-owning controls
in window-owning controls or to allow several controls to be handled together.</p>
<p>For more information on compound controls, see <xref href="GUID-97486385-88F7-4AF1-B880-D9A8AA4D7094.dita">Compound
controls in traditional architecture</xref> and <xref href="GUID-57CA8A13-05C6-4AFE-9804-E2EA2453143A.dita">Compound
controls in the view architecture</xref>.</p>
<p>Examples of a compound control include:</p>
<ul>
<li><p>a view that displays text in the <i>main</i> pane</p>
<itemgroup>
<p>typically this is handled by using the methods of the <xref href="jar:GUID-759FBC7F-5384-4487-8457-A8D4B76F6AA6.jar!/html/classCEikLabel.html" format="application/java-archive"><parmname>CEikLabel</parmname></xref> class,
which is a non-window-owning control, in a <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Control_Environment/CCoeControlClass.html" format="application/java-archive"><parmname>CCoeControl</parmname></xref>-derived
view</p>
</itemgroup>
</li>
<li><p>a view that contains a listbox in the <i>main</i> pane</p>
<itemgroup>
<p>typically this is handled by using the methods of the Lists API in a <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Control_Environment/CCoeControlClass.html" format="application/java-archive"><parmname>CCoeControl</parmname></xref>-derived view</p>
</itemgroup>
</li>
<li><p>a view the contains a grid in the <i>main</i> pane</p>
<itemgroup>
<p>typically, this is handled by using the methods of the Grids API in a <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Control_Environment/CCoeControlClass.html" format="application/java-archive"><parmname>CCoeControl</parmname></xref>-derived view</p>
</itemgroup>
</li>
</ul>
</conbody></concept>