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<concept id="GUID-CB548959-A1D6-4585-B8E3-B09E37E0CB43" xml:lang="en"><title>List

layouts</title><prolog><metadata><keywords/></metadata></prolog><conbody>

<p>List items can in general be more complex (contain more elements) than

grid items. Certain layout rules apply to all lists:</p>

<ul>

<li><p>All items in a list have equal height on the screen (forms do not follow

this rule in the Edit state, see <xref href="GUID-1AA32C40-CDE0-4627-A634-7C07BB1ED67B.dita">Forms</xref>). </p></li>

<li><p>The column structure of all items in a list must be similar. It is

not possible to combine e.g. single-column items to a three-column item list

(however, it is possible to use some different item types having the same

general appearance), see <xref href="GUID-F95A7D74-FD5C-40D2-BF4F-2F75443CAE51.dita">Column

structure of lists</xref> for columns. </p></li>

<li><p>Partial items are not visible: when the list/grid pane area does not

exactly correspond to an integer number of items, the remaining area outside

the last fully visible item appears empty, displaying the background of the

particular pane.</p></li>

</ul>

<p>In landscape layout, all two row lists can be stretched to be displayed

in one row. This enables displaying more items in the list. In list stretching,

the second row is moved next to the first row. List stretching is ON by default,

but application can decide to disable it.</p>

<fig id="GUID-425291FD-35BB-4145-A509-9BBC5B18022C">

<title>Two row list in stretched mode in landscape layout</title>

<image href="GUID-D2263F64-2582-473A-B939-ACEBF8E974BF_d0e59088_href.png" placement="inline"/>

</fig>

<section id="GUID-A3F9AF92-392F-4EF6-8CFB-5B8CF0AA5210"><title>Using

list layouts in C++ applications</title><p>The API to use for lists is the <xref format="html" href="specs/guides/Lists_API_Specification/Lists_API_Specification.html" scope="peer">Lists API</xref>. For implementation information, see <xref format="htrml" href="specs/guides/Lists_API_Specification/Lists_API_Specification.html#Lists_API_Specification.topic3" scope="peer">Using the Lists API</xref>.</p><p>For grids, the APIs to use

are the <xref format="html" href="specs/guides/Grids_API_Specification/Grids_API_Specification.html" scope="peer">Grids API</xref> and the <xref format="html" href="specs/guides/Lists_API_Specification/Lists_API_Specification.html" scope="peer">Lists API</xref>. For implementation information, see <xref format="html" href="specs/guides/Grids_API_Specification/Grids_API_Specification.html#Grids_API_Specification.topic3" scope="peer">Using the Grids API</xref> and <xref format="htrml" href="specs/guides/Lists_API_Specification/Lists_API_Specification.html#Lists_API_Specification.topic3" scope="peer">Using the Lists API</xref>.</p></section>

</conbody></concept>