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</style><script src="./../scripts/branding.js" type="text/javascript"><!----></script><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>DryadLinqQueryable.LongTakeWhile(TSource) Method </title><meta name="Language" content="en-us" /><meta name="System.Keywords" content="LongTakeWhile%3CTSource%3E method" /><meta name="System.Keywords" content="LongTakeWhile(Of TSource) method" /><meta name="System.Keywords" content="DryadLinqQueryable.LongTakeWhile%3CTSource%3E method" /><meta name="System.Keywords" content="DryadLinqQueryable.LongTakeWhile(Of TSource) method" /><meta name="Microsoft.Help.F1" content="Microsoft.Research.DryadLinq.DryadLinqQueryable.LongTakeWhile``1" /><meta name="Microsoft.Help.Id" content="M:Microsoft.Research.DryadLinq.DryadLinqQueryable.LongTakeWhile``1(System.Linq.IQueryable{``0},System.Linq.Expressions.Expression{System.Func{``0,System.Int64,System.Boolean}})" /><meta name="Description" content="Returns the largest prefix of a sequence such that the elements satisfy a specified predicate." /><meta name="Microsoft.Help.ContentType" content="Reference" /><meta name="BrandingAware" content="'true'" /><meta name="container" content="Microsoft.Research.DryadLinq" /><meta name="file" content="1361c8c8-c04b-e5f2-6112-9f62b5af8fcb" /><meta name="guid" content="1361c8c8-c04b-e5f2-6112-9f62b5af8fcb" /><meta name="SelfBranded" content="true" /></head><body onload="onLoad()" class="primary-mtps-offline-document"><div class="OH_outerDiv"><div class="OH_outerContent"><table class="TitleTable"><tr><td class="OH_tdTitleColumn">DryadLinqQueryable<span id="ID0EFBABAAA"> </span><script type="text/javascript">
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addToLanSpecTextIdSet("ID0EFBABAAA?vb=.|cpp=::|cs=.|fs=.|nu=.");
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</script>LongTakeWhile<span id="ID0EDBABAAA"> </span><script type="text/javascript">
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addToLanSpecTextIdSet("ID0EDBABAAA?vb=(Of |cpp=<|cs=<|fs=<'|nu=(");
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</script><span class="typeparameter">TSource</span><span id="ID0EBBABAAA"> </span><script type="text/javascript">
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</script> Method </td><td class="OH_tdRunningTitleColumn">DryadLINQ documentation</td></tr></table><div id="mainSection"><div id="mainBody"><span class="introStyle"></span><div class="summary">
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Returns the largest prefix of a sequence such that the elements satisfy a specified predicate.
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</div><p></p><strong>Namespace:</strong> <a href="efe6507e-9fd8-bbd3-8227-fd6ba9e289c1.htm" target="">Microsoft.Research.DryadLinq</a><br /><strong>Assembly:</strong> <span sdata="assembly">Microsoft.Research.DryadLinq</span> (in Microsoft.Research.DryadLinq.dll) Version: 0.1.1.0 (0.1.1.0)<div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Syntax</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"></div><div id="snippetGroup_Syntax" class="code"><div id="ID0ECVCAAAAA" class="OH_CodeSnippetContainer"><div class="OH_CodeSnippetContainerTabs" id="ID0ECVCAAAAA_tabs"><div class="OH_CodeSnippetContainerTabLeftActive" id="ID0ECVCAAAAA_tabimgleft"></div><div id="ID0ECVCAAAAA_tab1" class="OH_CodeSnippetContainerTabActive" EnableCopyCode="true"><a href="#" onclick="javascript:ChangeTab('ID0ECVCAAAAA','C#','1','4');return false;">C#</a></div><div id="ID0ECVCAAAAA_tab2" class="OH_CodeSnippetContainerTab" EnableCopyCode="true"><a href="#" onclick="javascript:ChangeTab('ID0ECVCAAAAA','Visual Basic','2','4');return false;">VB</a></div><div id="ID0ECVCAAAAA_tab3" class="OH_CodeSnippetContainerTab" EnableCopyCode="true"><a href="#" onclick="javascript:ChangeTab('ID0ECVCAAAAA','Visual C++','3','4');return false;">C++</a></div><div id="ID0ECVCAAAAA_tab4" class="OH_CodeSnippetContainerTabDisabledNotFirst" EnableCopyCode="true" disabled="true"><a>F#</a></div><div class="OH_CodeSnippetContainerTabRight" id="ID0ECVCAAAAA_tabimgright"></div></div><div id="ID0ECVCAAAAA_codecollection" class="OH_CodeSnippetContainerCodeCollection"><div class="OH_CodeSnippetToolBar"><div class="OH_CodeSnippetToolBarText"><a id="ID0ECVCAAAAA_ViewColorized" href="#" onclick="javascript:ExchangeTitleContent('ID0ECVCAAAAA','4')" title="View Colorized" style="display: none">View Colorized</a><a id="ID0ECVCAAAAA_copycode" href="#" onclick="javascript:CopyToClipboard('ID0ECVCAAAAA','4')" title="Copy to Clipboard">Copy to Clipboard</a><a id="ID0ECVCAAAAA_PrintText" class="OH_PrintText" href="#" onclick="javascript:Print('ID0ECVCAAAAA','4')" title="Print">Print</a></div></div><div id="ID0ECVCAAAAA_code_Div1" class="OH_CodeSnippetContainerCode" style="display: block"><pre><span class="keyword">public</span> <span class="keyword">static</span> <span class="identifier">IQueryable</span><TSource> <span class="identifier">LongTakeWhile</span><TSource>(
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<span class="keyword">this</span> <span class="identifier">IQueryable</span><TSource> <span class="parameter">source</span>,
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<span class="identifier">Expression</span><<span class="identifier">Func</span><TSource, <span class="identifier">long</span>, <span class="identifier">bool</span>>> <span class="parameter">predicate</span>
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)</pre></div><div id="ID0ECVCAAAAA_code_Plain_Div1" class="OH_CodeSnippetContainerCode" style="display: none"><pre>public static IQueryable<TSource> LongTakeWhile<TSource>(
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this IQueryable<TSource> source,
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Expression<Func<TSource, long, bool>> predicate
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)</pre></div><div id="ID0ECVCAAAAA_code_Div2" class="OH_CodeSnippetContainerCode" style="display: none"><pre><<span class="identifier">ExtensionAttribute</span>>
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<span class="keyword">Public</span> <span class="keyword">Shared</span> <span class="keyword">Function</span> <span class="identifier">LongTakeWhile</span>(<span class="keyword">Of</span> TSource) (
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<span class="parameter">source</span> <span class="keyword">As</span> <span class="identifier">IQueryable</span>(<span class="keyword">Of</span> TSource),
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<span class="parameter">predicate</span> <span class="keyword">As</span> <span class="identifier">Expression</span>(<span class="keyword">Of</span> <span class="identifier">Func</span>(<span class="keyword">Of</span> TSource, <span class="identifier">Long</span>, <span class="identifier">Boolean</span>))
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) <span class="keyword">As</span> <span class="identifier">IQueryable</span>(<span class="keyword">Of</span> TSource)</pre></div><div id="ID0ECVCAAAAA_code_Plain_Div2" class="OH_CodeSnippetContainerCode" style="display: none"><pre><ExtensionAttribute>
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Public Shared Function LongTakeWhile(Of TSource) (
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source As IQueryable(Of TSource),
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predicate As Expression(Of Func(Of TSource, Long, Boolean))
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) As IQueryable(Of TSource)</pre></div><div id="ID0ECVCAAAAA_code_Div3" class="OH_CodeSnippetContainerCode" style="display: none"><pre><span class="keyword">public</span>:
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[<span class="identifier">ExtensionAttribute</span>]
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<span class="keyword">generic</span><<span class="keyword">typename</span> TSource>
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<span class="keyword">static</span> <span class="identifier">IQueryable</span><TSource>^ <span class="identifier">LongTakeWhile</span>(
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<span class="identifier">IQueryable</span><TSource>^ <span class="parameter">source</span>,
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<span class="identifier">Expression</span><<span class="identifier">Func</span><TSource, <span class="identifier">long long</span>, <span class="identifier">bool</span>>^>^ <span class="parameter">predicate</span>
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)</pre></div><div id="ID0ECVCAAAAA_code_Plain_Div3" class="OH_CodeSnippetContainerCode" style="display: none"><pre>public:
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[ExtensionAttribute]
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generic<typename TSource>
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static IQueryable<TSource>^ LongTakeWhile(
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IQueryable<TSource>^ source,
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Expression<Func<TSource, long long, bool>^>^ predicate
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)</pre></div><div id="ID0ECVCAAAAA_code_Div4" class="OH_CodeSnippetContainerCode" style="display: none"><pre /></div><div id="ID0ECVCAAAAA_code_Plain_Div4" class="OH_CodeSnippetContainerCode" style="display: none"><pre /></div></div></div><script>addSpecificTextLanguageTagSet('ID0ECVCAAAAA');</script></div><div id="parameters"><h4 class="subHeading">Parameters</h4><dl paramName="source"><dt><span class="parameter">source</span></dt><dd>Type: <a href="http://msdn2.microsoft.com/en-us/library/bb351562" target="_blank">System.Linq<span id="ID0EBFABUCAAAAA"> </span><script type="text/javascript">
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</script>IQueryable</a><span id="ID0EEABUCAAAAA"> </span><script type="text/javascript">
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addToLanSpecTextIdSet("ID0EEABUCAAAAA?vb=(Of |cpp=<|cs=<|fs=<'|nu=(");
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</script><span class="selflink"><span class="typeparam">TSource</span></span><span id="ID0ECABUCAAAAA"> </span><script type="text/javascript">
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addToLanSpecTextIdSet("ID0ECABUCAAAAA?vb=)|cpp=>|cs=>|fs=>|nu=)");
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</script><br /><span>The input sequence</span></dd></dl><dl paramName="predicate"><dt><span class="parameter">predicate</span></dt><dd>Type: <a href="http://msdn2.microsoft.com/en-us/library/bb335710" target="_blank">System.Linq.Expressions<span id="ID0EBMAAUCAAAAA"> </span><script type="text/javascript">
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addToLanSpecTextIdSet("ID0EBMAAUCAAAAA?vb=.|cpp=::|cs=.|fs=.|nu=.");
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</script>Expression</a><span id="ID0ELAAUCAAAAA"> </span><script type="text/javascript">
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addToLanSpecTextIdSet("ID0ELAAUCAAAAA?vb=(Of |cpp=<|cs=<|fs=<'|nu=(");
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</script><a href="http://msdn2.microsoft.com/en-us/library/bb534647" target="_blank">Func</a><span id="ID0EJAAUCAAAAA"> </span><script type="text/javascript">
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</script><span class="selflink"><span class="typeparam">TSource</span></span>, <a href="http://msdn2.microsoft.com/en-us/library/6yy583ek" target="_blank">Int64</a>, <a href="http://msdn2.microsoft.com/en-us/library/a28wyd50" target="_blank">Boolean</a><span id="ID0EDAAUCAAAAA"> </span><script type="text/javascript">
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addToLanSpecTextIdSet("ID0EDAAUCAAAAA?vb=)|cpp=>|cs=>|fs=>|nu=)");
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</script><span id="ID0ECAAUCAAAAA"> </span><script type="text/javascript">
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</script><br /><span>A predicate to test each element for a condition</span></dd></dl></div><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Type Parameters</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"></div><dl><dt><span class="parameter">TSource</span></dt><dd>The element type of the input sequence</dd></dl><h4 class="subHeading">Return Value</h4>Type: <a href="http://msdn2.microsoft.com/en-us/library/bb351562" target="_blank">IQueryable</a><span id="ID0EPCAAAAA"> </span><script type="text/javascript">
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addToLanSpecTextIdSet("ID0EPCAAAAA?vb=(Of |cpp=<|cs=<|fs=<'|nu=(");
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</script><span class="selflink"><span class="typeparam">TSource</span></span><span id="ID0ENCAAAAA"> </span><script type="text/javascript">
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addToLanSpecTextIdSet("ID0ENCAAAAA?vb=)|cpp=>|cs=>|fs=>|nu=)");
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</script><br />The largest prefix satisfying the predicate<h4 class="subHeading">Usage Note</h4>In Visual Basic and C#, you can call this method as an instance method on any object of type <a href="http://msdn2.microsoft.com/en-us/library/bb351562" target="_blank">IQueryable</a><span id="ID0EHCAAAAA"> </span><script type="text/javascript">
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addToLanSpecTextIdSet("ID0EHCAAAAA?vb=(Of |cpp=<|cs=<|fs=<'|nu=(");
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</script><span class="selflink"><span class="typeparam">TSource</span></span><span id="ID0EFCAAAAA"> </span><script type="text/javascript">
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addToLanSpecTextIdSet("ID0EFCAAAAA?vb=)|cpp=>|cs=>|fs=>|nu=)");
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</script>. When you use instance method syntax to call this method, omit the first parameter. For more information, see <a href="http://msdn.microsoft.com/en-us/library/bb384936.aspx" target="_blank">Extension Methods (Visual Basic)</a> or <a href="http://msdn.microsoft.com/en-us/library/bb383977.aspx" target="_blank">Extension Methods (C# Programming Guide)</a>.<a name="seeAlsoSection"><!----></a><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">See Also</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"></div><div class="seeAlsoStyle"><a href="6d67ec6b-96ed-0a8b-0ad4-1c0568c7bf91.htm" target="">DryadLinqQueryable Class</a></div><div class="seeAlsoStyle"><a href="efe6507e-9fd8-bbd3-8227-fd6ba9e289c1.htm" target="">Microsoft.Research.DryadLinq Namespace</a></div></div></div></div></div><div id="OH_footer" class="OH_footer"><p /><div class="OH_feedbacklink"><a href="mailto:?subject=DryadLINQ+documentation+DryadLinqQueryable.LongTakeWhile(TSource)+Method++100+EN-US&body=Your%20feedback%20is%20used%20to%20improve%20the%20documentation%20and%20the%20product.%20Your%20e-mail%20address%20will%20not%20be%20used%20for%20any%20other%20purpose%20and%20is%20disposed%20of%20after%20the%20issue%20you%20report%20is%20resolved.%20While%20working%20to%20resolve%20the%20issue%20that%20you%20report%2c%20you%20may%20be%20contacted%20via%20e-mail%20to%20get%20further%20details%20or%20clarification%20on%20the%20feedback%20you%20sent.%20After%20the%20issue%20you%20report%20has%20been%20addressed%2c%20you%20may%20receive%20an%20e-mail%20to%20let%20you%20know%20that%20your%20feedback%20has%20been%20addressed.">Send Feedback</a> on this topic.</div></div></body></html> |