</ iframe > </noscript> <!-- End Google Tag Manager (noscript) --> <div id="BeforeHeaderContent"> </div> <div id="HeaderContent"> <div id="ProjectTitle">DataSource for Entity Framework in WPF</div> <div id="PageTitle"><div id="PageTitleText">AsIndexed<T> Method (IndexedQueryExtensions)</div></div> </div> <div id="AfterHeaderContent"> <!-- Spacing --> <span id="ToggleAllSectionsLink" class="FunctionLink"> <label id="CollapseAllLabel">Collapse All</label> <label id="ExpandAllLabel" style="display: none;">Expand All</label> </span><!-- Spacing --> <span id="LanguageFilterPopupLink" class="PopupLink" data-popupcontentsource="#LanguageCheckboxes" data-popuptitle='Language Filter'> <label id="ShowAllLabel" for="LanguageFilterPopupLink"> Language Filter: All </label> <label id="MultipleLabel" for="LanguageFilterPopupLink" style="display: none;"> Language Filter: Multiple </label> <label id="VBAllLabel" for="LanguageFilterPopupLink" style="display: none;"> Language Filter: Visual Basic </label> <label id="VBLabel" for="LanguageFilterPopupLink" style="display: none;">Language Filter: Visual Basic (Declaration)</label> <label id="CSLabel" for="LanguageFilterPopupLink" style="display: none;">Language Filter: C#</label> </span> <div class="PopupContent" id="LanguageCheckboxes"> <input data-languagename="VB" id="VBLanguageCheckbox" type="checkbox" class="ToggleLanguageCheckbox" checked="true" data-toggleclass="FilteredContentVB"> <label class="LanguageFilter" for="VBCheckbox"> Visual Basic (Declaration) </label> <br><input data-languagename="CS" id="CSLanguageCheckbox" type="checkbox" class="ToggleLanguageCheckbox" checked="true" data-toggleclass="FilteredContentCS"> <label class="LanguageFilter" for="CSCheckbox"> C# </label> </div> </div> <div class="BreadcrumbsContainer"><table><tr><td> <a href="C1.LiveLinq.4~C1.LiveLinq_namespace.html">C1.LiveLinq Namespace</a> > <a href="C1.LiveLinq.4~C1.LiveLinq.IndexedQueryExtensions.html">IndexedQueryExtensions Class</a> : AsIndexed<T> Method</td></tr></table></div> <div id="TPopupContent" class="PopupContent"> The type of the elements of <i>source</i>. </div> <div id="sourcePopupContent" class="PopupContent"> The collection to type as <a href="C1.LiveLinq.4~C1.LiveLinq.Indexing.IIndexedSource`1.html">C1.LiveLinq.Indexing.IIndexedSource<T></a>. </div> <div id="BodyContent"> <div class="DescriptionContent">Returns the input typed as <a href="C1.LiveLinq.4~C1.LiveLinq.Indexing.IIndexedSource`1.html">C1.LiveLinq.Indexing.IIndexedSource<T></a>.</div> <div class="SectionHeading" id="syntaxSectionHeading"><span class="SectionHeadingIcon"><!-- --></span><span class="SectionHeadingText">Syntax</span></div><div id="syntaxSectionContent" class="SectionContent"> <div class="TabContainer" id="TabContainer"> <ul> <li class="FilteredContentVBAll"><a href="#Syntax-VBAll">Visual Basic</a></li> <li class="FilteredContentCS"><a href="#Syntax-CS">C#</a></li> </ul> <div id="Syntax-VB" class="FilteredContentVB"> <pre>'Declaration Public Shared Function AsIndexed(Of <a class="PopupLink" id="TPopupLink" data-popupcontentsource="#TPopupContent" data-popupshowevent="click mouseenter">T</a>)( _ ByVal <i><a class="PopupLink" id="sourcePopupLink" data-popupcontentsource="#sourcePopupContent" data-popupshowevent="click mouseenter">source</a></i> As <a href="C1.LiveLinq.4~C1.LiveLinq.Indexing.IIndexedSource`1.html">IIndexedSource(Of T)</a> _ ) As <a href="C1.LiveLinq.4~C1.LiveLinq.Indexing.IIndexedSource`1.html">IIndexedSource(Of T)</a></pre> </div> <div id="Syntax-CS" class="FilteredContentCS"> <pre>public static <a href="C1.LiveLinq.4~C1.LiveLinq.Indexing.IIndexedSource`1.html">IIndexedSource<T></a> AsIndexed<<a class="PopupLink" id="TPopupLink" data-popupcontentsource="#TPopupContent" data-popupshowevent="click mouseenter">T</a>>( <a href="C1.LiveLinq.4~C1.LiveLinq.Indexing.IIndexedSource`1.html">IIndexedSource<T></a> <i><a class="PopupLink" id="sourcePopupLink" data-popupcontentsource="#sourcePopupContent" data-popupshowevent="click mouseenter">source</a></i> )</pre> </div> </div> <h4 class="dxh4">Parameters</h4><dl><dt><i>source</i></dt> <dd>The collection to type as <a href="C1.LiveLinq.4~C1.LiveLinq.Indexing.IIndexedSource`1.html">C1.LiveLinq.Indexing.IIndexedSource<T></a>.</dd></dl> <h4 class="dxh4">Type Parameters</h4><dl> <dt><i>T</i></dt> <dd>The type of the elements of <i>source</i>.</dd> </dl> <h4 class="dxh4">Return Value</h4><div class="ReturnsContent">The input collection typed as <a href="C1.LiveLinq.4~C1.LiveLinq.Indexing.IIndexedSource`1.html">C1.LiveLinq.Indexing.IIndexedSource<T></a>.</div></div> <div class="SectionHeading" id="remarksSectionHeading"><span class="SectionHeadingIcon"><!-- --></span><span class="SectionHeadingText">Remarks</span></div><div id="remarksSectionContent" class="SectionContent"><p>This method has no effect other than to change the compile-time type of <i>source</i> from a type that implements <a href="C1.LiveLinq.4~C1.LiveLinq.Indexing.IIndexedSource`1.html">C1.LiveLinq.Indexing.IIndexedSource<T></a> to <a href="C1.LiveLinq.4~C1.LiveLinq.Indexing.IIndexedSource`1.html">C1.LiveLinq.Indexing.IIndexedSource<T></a> itself. It is used to choose between query implementations when a collection implements <a href="C1.LiveLinq.4~C1.LiveLinq.Indexing.IIndexedSource`1.html">C1.LiveLinq.Indexing.IIndexedSource<T></a> but also has a different set of public query methods available.</p> <p>The main scenario is when you want to perform queries on live views without creating new live views.</p> <p>Live views have their own implementations of query operators defined in the <a href="C1.LiveLinq.4~C1.LiveLinq.LiveViews.View`1.html">C1.LiveLinq.LiveViews.View<T></a> class. Live view implementations are heavier, require more resources, so it is not recommended to use live view implementations in cases where you don't need live view functionality (for example, for querying read-only collections), see <span>Live View Performance</span>. If you have a live view, but want to query it using operators from <a href="C1.LiveLinq.4~C1.LiveLinq.IndexedQueryExtensions.html">IndexedQueryExtensions</a> instead of <a href="C1.LiveLinq.4~C1.LiveLinq.LiveViews.View`1.html">C1.LiveLinq.LiveViews.View<T></a>, use this method to "downgrade" the live view to an <a href="C1.LiveLinq.4~C1.LiveLinq.Indexing.IIndexedSource`1.html">C1.LiveLinq.Indexing.IIndexedSource<T></a>. This method does not cause the live view to lose its "live" functionality, it simply returns the live view's implementation of the <a href="C1.LiveLinq.4~C1.LiveLinq.Indexing.IIndexedSource`1.html">C1.LiveLinq.Indexing.IIndexedSource<T></a> interface.</p></div> <a name="exampleBookmark"></a> <div class="SectionHeading" id="requirementsSectionHeading"><span class="SectionHeadingIcon"><!-- --></span><span class="SectionHeadingText">Requirements</span></div><div id="requirementsSectionContent" class="SectionContent"><p><b>Target Platforms:</b> Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2</p></div> <a name="seealsobookmark"></a> <div class="SectionHeading" id="seealsoSectionHeading"><span class="SectionHeadingIcon"><!-- --></span><span class="SectionHeadingText">See Also</span></div><div id="seealsoSectionContent" class="SectionContent"><h4 class="subHeading">Reference</h4><p><a href="C1.LiveLinq.4~C1.LiveLinq.IndexedQueryExtensions.html">IndexedQueryExtensions Class</a> <br><a href="C1.LiveLinq.4~C1.LiveLinq.IndexedQueryExtensions_members.html">IndexedQueryExtensions Members</a> </p> </div> </div> <div id="FooterContent"> <p> </p><p> </p><hr style="height: 1px"><p>Copyright (c) <script type="text/javascript"> var theDate=new Date() document.write(theDate.getFullYear()) </script> GrapeCity, inc. 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