</ 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" -->Xamarin.Android Documentation<!--DXMETADATA end--></div> <div id="PageTitle"><div id="PageTitleText"><!--DXMETADATA start type="ItemTitle" -->Invalidate(Int32,Int32,Int32,Int32) Method<!--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 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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="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="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.Android.Grid.html">C1.Android.Grid Assembly</a> > <a href="C1.Android.Grid~C1.Android.Grid_namespace.html">C1.Android.Grid Namespace</a> > <a href="C1.Android.Grid~C1.Android.Grid.FlexGrid.html">FlexGrid Class</a> > <a href="C1.Android.Grid~C1.Android.Grid.FlexGrid~Invalidate.html">Invalidate Method</a> : Invalidate(Int32,Int32,Int32,Int32) 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" --> <div id="lPopupContent" class="PopupContent"> </div> <div id="tPopupContent" class="PopupContent"> </div> <div id="rPopupContent" class="PopupContent"> </div> <div id="bPopupContent" class="PopupContent"> </div> <!--DXMETADATA end --> <div id="BodyContent"> <!--DXMETADATA start type="Description" source="Item" format="<div class=""DescriptionContent"">%%description%%</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>" --><!--DXMETADATA end --> <!--DXMETADATA start type="SyntaxSection" format="%%scrap:name=_COLLAPSIBLE_HEADER,idprefix=syntax,caption=$$Syntax$$%%%%SyntaxSection%%" --><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="FilteredContentCS"><a href="#Syntax-CS">C#</a></li> </ul> <div id="Syntax-CS" class="FilteredContentCS"> <pre><pre>[Android.Runtime.Register(Connector=<span style="color: #800000; ">"GetInvalidate_IIIIHandler"</span>, Name=<span style="color: #800000; ">"invalidate"</span>, Signature=<span style="color: #800000; ">"(IIII)V"</span>, DoNotGenerateAcw=<span style="color: #0000FF; ">false</span>, ApiSince=0)] <span style="color: #0000FF; ">public</span> <span style="color: #0000FF; ">virtual</span> <span style="color: #0000FF; ">void</span> Invalidate( <a href="#" onclick="javascript:navigateToHelp2Keyword('frlrfSystemInt32ClassTopic','System.Int32')">int</a> <i><a class="PopupLink" id="lPopupLink" data-popupcontentsource="#lPopupContent" data-popupshowevent="click mouseenter">l</a></i>, <a href="#" onclick="javascript:navigateToHelp2Keyword('frlrfSystemInt32ClassTopic','System.Int32')">int</a> <i><a class="PopupLink" id="tPopupLink" data-popupcontentsource="#tPopupContent" data-popupshowevent="click mouseenter">t</a></i>, <a href="#" onclick="javascript:navigateToHelp2Keyword('frlrfSystemInt32ClassTopic','System.Int32')">int</a> <i><a class="PopupLink" id="rPopupLink" data-popupcontentsource="#rPopupContent" data-popupshowevent="click mouseenter">r</a></i>, <a href="#" onclick="javascript:navigateToHelp2Keyword('frlrfSystemInt32ClassTopic','System.Int32')">int</a> <i><a class="PopupLink" id="bPopupLink" data-popupcontentsource="#bPopupContent" data-popupshowevent="click mouseenter">b</a></i> )</pre></pre> </div> </div> <!--DXMETADATA end --> <!--DXMETADATA start type="FilteredItemList" scrap="PARAMETERS_LIST" namespace="parameter" source="Item" filter="" NoCr="True" format="<h4 class=dxh4>$$ParameterList$$</h4>%%filtereditemlist%%" --><h4 class="dxh4">Parameters</h4><dl><dt><i>l</i></dt> <dd></dd><dt><i>t</i></dt> <dd></dd><dt><i>r</i></dt> <dd></dd><dt><i>b</i></dt> <dd></dd></dl><!--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>" --></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""" 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