</ iframe > </noscript> <!-- End Google Tag Manager (noscript) --> <div id="BeforeHeaderContent"> </div> <div id="HeaderContent"> <!--DXMETADATA start type="Literal" condition="communityenabled" value="%%scrap:name=_COMMUNITY_RATING%%" --><!--DXMETADATA end --> <!--DXMETADATA start type="LogoImage" --><!--DXMETADATA end--> <div id="ProjectTitle"><!--DXMETADATA start type="ProjectTitle" -->Data for Silverlight<!--DXMETADATA end--></div> <div id="PageTitle"><div id="PageTitleText"><!--DXMETADATA start type="ItemTitle" -->IndexOf Method (NamedObjectCollection<T>)<!--DXMETADATA end--></div></div> </div> <div id="AfterHeaderContent"> <!--DXMETADATA start type="Literal" condition="childitems:itemtype=example,filter=""type=inline""" value="<a class=""PageLink"" href=""#ExampleBookmark"" onclick=""javascript:dxOpenSectionById('exampleSectionHeader');"">$$Example$$</a> " --><!--DXMETADATA end --><!-- Spacing --> <span id="ToggleAllSectionsLink" class="FunctionLink"> <label id="CollapseAllLabel"><!--DXMETADATA start type="Phrase" name="COLLAPSE_ALL" -->Collapse All<!--DXMETADATA end--></label> <label id="ExpandAllLabel" style="display: none;"><!--DXMETADATA start type="Phrase" name="EXPAND_ALL" -->Expand All<!--DXMETADATA end--></label> </span><!--DXMETADATA start type="Literal" condition="communityenabled" value="%%scrap:name=_COMMUNITY_DROPDOWN%%" --><!--DXMETADATA end --><!-- Spacing --> <span id="LanguageFilterPopupLink" class="PopupLink" data-popupcontentsource="#LanguageCheckboxes" data-popuptitle='<!--DXMETADATA start type="Phrase" name="Language_Filter" -->Language Filter<!--DXMETADATA end -->'> <label id="ShowAllLabel" for="LanguageFilterPopupLink"> <!--DXMETADATA start type="Phrase" name="Language_Filter_All" -->Language Filter: All<!--DXMETADATA end --> </label> <label id="MultipleLabel" for="LanguageFilterPopupLink" style="display: none;"> <!--DXMETADATA start type="Phrase" name="Language_Filter_Multiple" -->Language Filter: Multiple<!--DXMETADATA end --> </label> <label id="VBAllLabel" for="LanguageFilterPopupLink" style="display: none;"> <!--DXMETADATA start type="Phrase" name="Language_Filter" -->Language Filter<!--DXMETADATA end -->: <!--DXMETADATA start type="Phrase" name="Language_VB" -->Visual Basic<!--DXMETADATA end --> </label> <!--DXMETADATA start type="FilteredItemList" scrap="LANGUAGE_LABEL_LIST" namespace="language" filter="type=all" source="Item" format="" --> <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> <!--DXMETADATA end --> </span> <div class="PopupContent" id="LanguageCheckboxes"> <!--DXMETADATA start type="FilteredItemList" scrap="LANGUAGE_CHECKBOX_LIST" namespace="language" filter="type=all" source="Item" format="" --> <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> <!--DXMETADATA end --> </div> </div> <!--DXMETADATA start type="Breadcrumbs" scrap="_BREADCRUMBS" --><div class="BreadcrumbsContainer"><table><tr><td> <a href="C1.Silverlight.Data.5~C1.Silverlight.Data_namespace.html">C1.Silverlight.Data Namespace</a> > <a href="C1.Silverlight.Data.5~C1.Silverlight.Data.NamedObjectCollection`1.html">NamedObjectCollection<T> Class</a> : IndexOf Method</td></tr></table></div><!--DXMETADATA end --> <!--DXMETADATA start type="FilteredItemList" scrap="GENERICARGUMENT_BUBBLES" namespace="generic argument" source="Item" --><!--DXMETADATA end --> <!--DXMETADATA start type="FilteredItemList" scrap="PARAMETERS_BUBBLES" namespace="parameter" source="Item" --><!--DXMETADATA end --> <div id="BodyContent"> <!--DXMETADATA start type="Description" source="Item" format="<div class=""DescriptionContent"">%%description%%</div>" --><div class="DescriptionContent"> Gets the index of an item in the list. </div><!--DXMETADATA end --> <!--DXMETADATA start type="TaggedComment" source="Item" id="##OVERLOADS" format="%%comment%%" --><!--DXMETADATA end --> <!--DXMETADATA start type="FilteredItemList" scrap="OVERLOAD_LIST" namespace="method" source="Item" filter="" format="%%scrap:name=_COLLAPSIBLE_HEADER,idprefix=overloadlist,caption=$$OverloadList$$%%%%filtereditemlist%%</div>" --><div class="SectionHeading" id="overloadlistSectionHeading"><span class="SectionHeadingIcon"><!-- --></span><span class="SectionHeadingText">Overload List</span></div><div id="overloadlistSectionContent" class="SectionContent"><table class="FilteredItemListTable"><tr><th>Overload</th><th>Description</th></tr> <tr><td class="LinkCell"><a href="C1.Silverlight.Data.5~C1.Silverlight.Data.NamedObjectCollection`1~IndexOf(String).html">IndexOf(String)</a></td><td class="DescriptionCell"> Gets the index of an item in the list. </td></tr> <tr><td class="LinkCell"><a href="#" onclick="javascript:navigateToHelp2Keyword('frlrfSystemCollectionsObjectModelCollection`1{T}ClassIndexOf(`0)Topic','System.Collections.ObjectModel.Collection`1{T}.IndexOf(`0)')">IndexOf(`0)</a></td><td class="DescriptionCell"> (Inherited from <a href="#" onclick="javascript:navigateToHelp2Keyword('frlrfSystemCollectionsObjectModelCollection`1ClassTopic','System.Collections.ObjectModel.Collection`1')">System.Collections.ObjectModel.Collection<T></a>)</td></tr> </table></div><!--DXMETADATA end --> <!--DXMETADATA start type="SyntaxSection" format="%%scrap:name=_COLLAPSIBLE_HEADER,idprefix=syntax,caption=$$Syntax$$%%%%SyntaxSection%%" --><!--DXMETADATA end --> <!--DXMETADATA start type="FilteredItemList" scrap="PARAMETERS_LIST" namespace="parameter" source="Item" filter="" NoCr="True" format="<h4 class=dxh4>$$ParameterList$$</h4>%%filtereditemlist%%" --><!--DXMETADATA end --> <!--DXMETADATA start type="FilteredItemList" scrap="GENERICARGUMENT_LIST" namespace="generic argument" source="Item" filter="" format="<h4 class=dxh4>$$GenericArguments$$</h4>%%filtereditemlist%%" --><!--DXMETADATA end --> <!--DXMETADATA start type="TaggedComment" source="Item" id="##RETURNS" format="<h4 class=dxh4>$$Return_Type$$</h4><div class=""ReturnsContent"">%%comment%%</div></div>" blankformat="</div>" --><!--DXMETADATA end --> <!--DXMETADATA start type="FilteredItemList" scrap="EXCEPTION_LIST" namespace="exception" source="Item" filter="" designtime="true" format="%%replaceinquotes:value=false%%%%scrap:name=_COLLAPSIBLE_HEADER,idprefix=exceptions,caption=""$$Exceptions$$%%designlist:tagidentifier=##EXCEPTION,itemtype=Exception%%""%%%%filtereditemlist%%</div>" --><!--DXMETADATA end --> <!--DXMETADATA start type="Literal" condition="childitems:itemtype=contract,filter=""type=requires+ensures+ensuresonthrow+pure""" value="%%scrap:name=_COLLAPSIBLE_HEADER,idprefix=contracts,caption=$$Contracts$$%%%%filtereditemlist:scrap=CONTRACT_LIST,namespace=contract,source=item,filter=""type=requires+ensures+ensuresonthrow""%%</div>" --><!--DXMETADATA end --> <!--DXMETADATA start type="FilteredItemList" scrap="PERMISSION_LIST" namespace="permission" source="Item" filter="" designtime="true" format="%%replaceinquotes:value=false%%%%scrap:name=_COLLAPSIBLE_HEADER,idprefix=permissions,caption=""$$Permissions$$%%designlist:tagidentifier=##PERMISSION,itemtype=Permission%%""%%%%filtereditemlist%%</div>" --><!--DXMETADATA end --> <!--DXMETADATA start type="TaggedComment" source="Item" id="##REMARKS" format="%%scrap:name=_COLLAPSIBLE_HEADER,idprefix=remarks,caption=$$Remarks$$%%%%comment%%</div>" --><!--DXMETADATA end --> <a name="exampleBookmark"></a> <!--DXMETADATA start type="TaggedComment" source="Item" id="##EXAMPLEINTRO" format="%%replaceinquotes:value=false%%%%scrap:name=_COLLAPSIBLE_HEADER,idprefix=example,caption=""$$Example$$%%designlist:tagidentifier=##EXAMPLECODE,itemtype=Example%%""%%%%comment%%" --><!--DXMETADATA end --> <!--DXMETADATA start type="FilteredItemList" scrap="EXAMPLEGROUP_LIST" namespace="ExampleGroup" source="Item" filter="type=inline" condition="content:content=""%%GroupExamples%%"",operator=""="",value=""True""" NoHeader="True" NoFooter="True" format="%%replaceinquotes:value=false%%%%taggedcomment:source=item,id=##EXAMPLEINTRO,blankformat=""%%scrap:name=_COLLAPSIBLE_HEADER,idprefix=example,caption=$$Example$$%%"",format= %%%%filtereditemlist%%</div>" blankformat="%%taggedcomment:source=item,id=##EXAMPLEINTRO,format=</div>%%" --><!--DXMETADATA end --> <!--DXMETADATA start type="FilteredItemList" scrap="INLINE_EXAMPLE" namespace="Example" source="Item" filter="type=inline" condition="content:content=""%%GroupExamples%%"",operator=""<>"",value=""True""" NoHeader="True" NoFooter="True" format="%%replaceinquotes:value=false%%%%taggedcomment:source=item,id=##EXAMPLEINTRO,blankformat=""%%scrap:name=_COLLAPSIBLE_HEADER,idprefix=example,caption=$$Example$$%%"",format= %%%%filtereditemlist%%</div>" blankformat="%%taggedcomment:source=item,id=##EXAMPLEINTRO,format=</div>%%" --><!--DXMETADATA end --> <!--DXMETADATA start type="FilteredItemList" scrap="MENU_LINK" namespace="example" source="Item" filter="" NoHeader="True" NoFooter="True" format="%%scrap:name=_COLLAPSIBLE_HEADER,idprefix=example,caption=$$Example$$%%%%filtereditemlist%%</div>" --><!--DXMETADATA end --> <!--DXMETADATA start type="TaggedComment" source="Item" id="##REQUIREMENTS" format="%%scrap:name=_COLLAPSIBLE_HEADER,idprefix=requirements,caption=$$Requirements$$%%%%comment%%</div>" blankformat="%%variable:name=defaultmemberrequirements%%" --><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><!--DXMETADATA end --> <a name="seealsobookmark"></a> <!--DXMETADATA start type="FilteredItemList" scrap="CATEGORIZED_LINKS" namespace="linkcategory" source="Item" filter="" NoHeader="True" NoFooter="True" format="%%replaceinquotes:value=false%%%%scrap:name=_COLLAPSIBLE_HEADER,idprefix=seealso,caption=""$$See_Also$$%%designlist:tagidentifier=##SEEALSO,itemtype=See Also%%""%%%%filtereditemlist%%</div>"--><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.Silverlight.Data.5~C1.Silverlight.Data.NamedObjectCollection`1.html">NamedObjectCollection<T> Class</a> <br><a href="C1.Silverlight.Data.5~C1.Silverlight.Data.NamedObjectCollection`1_members.html">NamedObjectCollection<T> Members</a> </p> </div><!--DXMETADATA end--> </div> <div id="FooterContent"> <!--DXMETADATA start type="Scrap" condition="communityenabled" name="_COMMUNITY_FOOTER" --><!--DXMETADATA end --> <!--DXMETADATA start type="Variable" name="CopyrightNotice" format="<p> </p><p> </p><hr style=""height: 1px"" /><p>%%variable%%</p>" --><p> </p><p> </p><hr style="height: 1px"><p>Copyright © GrapeCity, inc. 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