146 lines
6.1 KiB
HTML
146 lines
6.1 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xmlns:xlink="http://www.w3.org/1999/xlink">
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<head>
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<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
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<title>Focusing Elements</title>
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<link href="style.css" rel="stylesheet" type="text/css">
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<link href="prettify.css" type="text/css" rel="stylesheet">
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<script type="text/javascript" src="prettify.js"></script><script type="text/javascript" src="lang-vb.js"></script><link href="../resources/main.css" media="screen" rel="stylesheet" type="text/css">
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</head>
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<body onload="prettyPrint()"><div class="placing">
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<br><table class="navigation"><tr>
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<td class="navigation-previous"><a href="chapter-empty-text.html"><strong>
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« Empty Text</strong></a></td>
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<td class="navigation-index"><a href="../../../quick-start-guide/better-listview/index.html"><strong>Index</strong></a></td>
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<td class="navigation-next"><a href="chapter-groups.html"><strong>Groups »
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</strong></a></td>
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</tr></table>
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<br><h1>Focusing Elements</h1>
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<div class="banner">
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<a href="../../../blog/page/6/index.html"><img src="../resources/overview.gif" alt="Better ListView" class="ss"></a>
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<div class="inside">
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<div class="text">Better ListView: Ultimate .NET ListView replacement control for WinForms (C#, VB.NET)</div>
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<span class="dbtn-c dbtn-hilight"><span class="dbtn-w"><a href="../../../betterlistview.exe" class="dbtn">Download</a></span></span>
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<span class="dbtn-c"><span class="dbtn-w"><a href="../../../blog/page/6/index.html" class="dbtn">More Info</a></span></span>
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</div>
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</div>
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<h2>Focusing Items and Groups</h2>
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<p>Elements of Better ListView controls can be focused independently on
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control focus state. Items, sub-items and groups can be focused using
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mouse or keyboard.</p>
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<p>When item or group is clicked, it gets focus within the Better
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ListView Control. The focused item is usually displayed slightly darker
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than other items (Aero theme) when selected.</p>
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<p>The focused item can be recognized by <strong><em>focus
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rectangle</em></strong>, which is apparent when item is focused, but not
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selected:</p>
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<p class="images"><img src="focus-item.png"><img src="focus-group.png"></p>
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<p>When graphic theme is turned off, focus rectangle is displayed after
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item or group is focused by keyboard for the first time. To hide focus
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rectangle again, call <span class="code">ResetFocusRectangleDisplay</span>
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method.</p>
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<h2>Focusing Sub-Items</h2>
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<p>Sub-items can be focused in <strong><em>Details</em></strong> view with
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columns.</p>
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<p>Sub-items cannot be focused by mouse, but when an item is focused,
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using <span class="code">Left</span> and <span class="code">Right</span> arrow keys allows you to
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move focus rectangle to subsequent sub-items:</p>
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<p class="images"><img src="sub-items.png"></p>
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<p>Having a sub-item focused allows you to invoke label editing of
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sub-items using keyboard (see <strong><em><a href="chapter-label-edit.html">Label Editing</a></em></strong> for more
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information).</p>
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<p>Sub item focusing behavior can be customized using
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<span class="code">SubItemFocusBehavior</span> property. It can have one of the three
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values:</p>
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<ul style="list-style:none">
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<li>
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<span class="code">None</span><ul style="list-style:none"><li>
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<p>Sub items cannot be focused.</p>
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</li></ul>
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</li>
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<li>
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<span class="code">All</span><ul style="list-style:none"><li>
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<p>Sub items can always be focused.</p>
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</li></ul>
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</li>
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<li>
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<span class="code">Auto</span><ul style="list-style:none"><li>
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<p>Sub-items can be focused in all items except <strong><em><a href="chapter-items.html#combined-items">Combined
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Items</a></em></strong>.</p>
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</li></ul>
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</li>
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</ul>
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<br><hr>
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<p class="note">When sub-item focusing is not possible in a given moment, Better
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ListView utilizes the left or right arrow key to perform horizontal
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scrolling.</p>
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<hr>
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<br><h2>Detecting Focused Element</h2>
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<p>Better ListView provides several properties to check which element
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is currently focused:</p>
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<ul>
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<li>
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<p><span class="code">FocusedGroup</span></p>
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</li>
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<li>
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<p><span class="code">FocusedItem</span></p>
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</li>
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<li>
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<p><span class="code">FocusedSubItem</span></p>
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</li>
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</ul>
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<br><hr>
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<p class="note">When a sub-item is focused (<span class="code">FocusedSubItem</span> property
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is not <span class="code">null</span>), the item is focused as well.</p>
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<hr>
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<br><p>To detect when focused element has been change, use the
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<span class="code">FocusedItemChanged</span> event. Event data contains information
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about both previous and recent focused element.</p>
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<br><div class="banner">
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<a href="../../../blog/page/6/index.html"><img src="../resources/overview.gif" alt="Better ListView" class="ss"></a>
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<div class="inside">
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<div class="text">Better ListView: Ultimate .NET ListView replacement control for WinForms (C#, VB.NET)</div>
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<span class="dbtn-c dbtn-hilight"><span class="dbtn-w"><a href="../../../betterlistview.exe" class="dbtn">Download</a></span></span>
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<span class="dbtn-c"><span class="dbtn-w"><a href="../../../blog/page/6/index.html" class="dbtn">More Info</a></span></span>
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</div>
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</div>
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<table class="navigation"><tr>
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<td class="navigation-previous"><a href="chapter-empty-text.html"><strong>
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« Empty Text</strong></a></td>
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<td class="navigation-index"><a href="../../../quick-start-guide/better-listview/index.html"><strong>Index</strong></a></td>
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<td class="navigation-next"><a href="chapter-groups.html"><strong>Groups »
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</strong></a></td>
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</tr></table>
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<br><table class="footer"><tr>
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<td class="footer-title">Better ListView Documentation
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</td>
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<td class="footer-copyright">
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Copyright © 2010-2012 <a href="../../../index.html" target="_blank">ComponentOwl.com</a>
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</td>
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</tr></table>
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</div></body>
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</html>
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