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style="display: none;">Expand All</label> </span> <span id="languageFilterToolTip" style="cursor:default;" onclick="showBox('dxlanguagemenu',event,document.getElementById('languageFilterImage'))" onmouseover='document.getElementById("languageFilterImage").src=document.getElementById("dropDownHoverImage").src;' onfocusin='document.getElementById("languageFilterImage").src=document.getElementById("dropDownHoverImage").src;' onmouseout='document.getElementById("languageFilterImage").src=document.getElementById("dropDownImage").src;' onfocusout='document.getElementById("languageFilterImage").src=document.getElementById("dropDownImage").src;'> <img id="languageFilterImage" src="dotnetimages/drpdown.gif"> <label id="showAllLabel" for="languageFilterImage" style="display: none;"> Language Filter: All </label> <label id="multipleLabel" for="languageFilterImage" style="display: none;"> Language Filter: Multiple </label> <label id="VBLabel" for="languageFilterImage" style="display: none;">Language Filter: Visual Basic (Declaration)</label> <label id="CSLabel" for="languageFilterImage" style="display: none;">Language Filter: C#</label> </span> </td> </tr> </table> <table width="100%" id="pagetopbreadcrumbs" cellspacing="0" cellpadding="0"><tr><td> <a href="DataDynamics.Reports~DataDynamics.Reports.ReportObjectModel_namespace.html">DataDynamics.Reports.ReportObjectModel Namespace</a> > <a href="DataDynamics.Reports~DataDynamics.Reports.ReportObjectModel.DataGroupingCollection.html">DataGroupingCollection Class</a> : OnValidate Method</td></tr></table> <div class="dxpopupbubble" id="dxlanguagemenu"> <input id="VBCheckbox" type="checkbox" name="languageFilter" onclick="setLanguage(this)"> <label class="languageFilter" for="VBCheckbox"> Visual Basic (Declaration) </label> <br><input id="CSCheckbox" type="checkbox" name="languageFilter" onclick="setLanguage(this)"> <label class="languageFilter" for="CSCheckbox"> C# </label> </div> <div id="value_box" class="dxpopupbubble"> <dl><dt class="popupbubble"><i>value</i></dt> <dd class="popupbubble"></dd></dl> </div> </div> <div id="pagebody" valign="bottom"> <a name="topBookmark"></a> <div id="mainbody"> <div id="allHistory" class="saveHistory" onsave="saveAll()" onload="loadAll()"> </div> <h1 class="heading"><span class="expandcollapse" tabindex="0"><img id="syntaxToggle" class="toggle" name="toggleSwitch" src="dotnetimages/collapse.gif">Syntax</span></h1><div id="syntaxSection" class="section" name="collapseableSection"><div class="LanguageSpecific" id="Syntax_VB"><table class="syntaxtable" width="100%" cellpadding="0" cellspacing="0"><tr><th>Visual Basic (Declaration)</th><th> </th></tr><tr><td colspan="2"><pre>Protected Overrides NotOverridable Sub OnValidate( _ ByVal <i><a class="parameter" id="value" href="#" onclick="javascript:showParamBox(event);">value</a></i> As <a href="#" onclick="javascript:navigateToHelp2Keyword('frlrfSystemObjectClassTopic','System.Object')">Object</a> _ ) </pre></td></tr></table></div> <div class="LanguageSpecific" id="Syntax_CS"><table class="syntaxtable" width="100%" cellpadding="0" cellspacing="0"><tr><th>C#</th><th> </th></tr><tr><td colspan="2"><pre>protected override void OnValidate( <a href="#" onclick="javascript:navigateToHelp2Keyword('frlrfSystemObjectClassTopic','System.Object')">object</a> <i><a class="parameter" id="value" href="#" onclick="javascript:showParamBox(event);">value</a></i> )</pre></td></tr></table></div> <h4 class="dxh4">Parameters</h4><dl><dt><i>value</i></dt> <dd></dd></dl> </div> <a name="exampleBookmark"></a> <a name="seealsobookmark"></a> <h1 class="heading"><span class="expandcollapse" tabindex="0"><img id="seealsoToggle" class="toggle" name="toggleSwitch" src="dotnetimages/collapse.gif">See Also</span></h1><div id="seealsoSection" class="section" name="collapseableSection"><h4 class="dxh4">Reference</h4><a href="DataDynamics.Reports~DataDynamics.Reports.ReportObjectModel.DataGroupingCollection.html">DataGroupingCollection Class</a> <br><a href="DataDynamics.Reports~DataDynamics.Reports.ReportObjectModel.DataGroupingCollection_members.html">DataGroupingCollection Members</a> <br><a href="#" onclick="javascript:navigateToHelp2Keyword('frlrfSystemCollectionsCollectionBaseClassOnValidateTopic','System.Collections.CollectionBase.OnValidate')">Base Implementation in System.Collections.CollectionBase</a> <p> </div> </div> <div id="pagefooter"> </div> </div> <div id="nonscrollingpagefooter">©2010. 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