1 <?xml version="1.0" encoding="utf-8"?>

     2 <!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->

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     4 "Eclipse Public License v1.0" which accompanies this distribution, 

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     7 	Nokia Corporation - initial contribution.

     8 Contributors: 

     9 -->  <!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"><concept id="GUID-DAF35D49-9630-4186-A350-E8483693D50D" xml:lang="en"><title>Hierarchical

    10 column list</title><prolog><metadata><keywords></keywords></metadata></prolog><conbody>

    11 <p>Hierarchical column list is used for browsing in one view files and folders

    12 that are in different levels in the file system. This enables for example

    13 showing subtitles among the list items, and collapsing and expanding data

    14 items under it.</p>

    15 <fig id="GUID-0A22D779-41C5-41DD-884C-AFC7DF192720">

    16 <title>Hierarchical column list component, where the subtitle "Yesterday"

    17 is expanded</title>

    18 <image href="GUID-573420CD-E8E0-4E98-B3E2-1388F4B1137D_d0e55804_href.png" scale="40" placement="inline"></image>

    19 </fig>

    20 <p>The hierarchical column list can have three different row types:</p>

    21 <ul>

    22 <li><p>Subtitle row </p></li>

    23 <li><p>Core data row </p></li>

    24 <li><p>Simple data row</p></li>

    25 </ul>

    26 <p>Subtitle can have only one type of subitems, thus both core data and simple

    27 data items cannot exist under same subtitle. It is recommended, that only

    28 one type of subitems would be used in the same view.</p>

    29 <p>To enable more information in a single row, the core data row can be divided

    30 into two core data columns. The more important information should be shown

    31 in the first column due to more space, for example e-mail sender information

    32 in the first column, and subject in the second column. In landscape there

    33 can be also third column in use.</p>

    34 <p><b>General navigation:</b> </p>

    35 <p>Expanding and collapsing can be done in subtitle rows:</p>

    36 <ul>

    37 <li><p>Arrow key: Tabs can be used together with a hierarchical column list,

    38 and thus arrow keys are used for moving between tabs. If there are no tabs,

    39 the arrow keys expand subtitle item (Arrow right, the focus is not moved)

    40 and collapse expanded subtitle item (Arrow left, focus is not moved). </p></li>

    41 <li><p>The Selection key expands collapsed (or vice versa) subtitle item in

    42 focus. </p></li>

    43 <li><p>Commands for expanding, collapsing and opening folders or files are

    44 also available in the <b>Options</b> menu.</p></li>

    45 </ul>

    46 <section><title>Using hierarchical column

    47 lists in C++ applications</title><p>The API to use for hierarchical column

    48 lists is the Hierarchical

    49 lists API. For implementation information, see Using

    50 the Hierarchical lists API.</p></section>

    51 </conbody></concept>