</ iframe > </noscript> <!-- End Google Tag Manager (noscript) --> <div id="BeforeHeaderContent"> </div> <div id="HeaderContent"> <div id="ProjectTitle">TreeView for WinForms</div> <div id="PageTitle"><div id="PageTitleText">C1TreeViewCancelEventArgs Class</div></div> </div> <div id="AfterHeaderContent"> <a class="PageLink" href="C1.Win.TreeView.4~C1.Win.TreeView.C1TreeViewCancelEventArgs_members.html">Members</a> <!-- 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="VBUsageLabel" for="LanguageFilterPopupLink" style="display: none;">Language Filter: Visual Basic (Usage)</label> <label id="CSLabel" for="LanguageFilterPopupLink" style="display: none;">Language Filter: C#</label> <label id="CPP2005Label" for="LanguageFilterPopupLink" style="display: none;">Language Filter: C++/CLI</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="VBUsage" id="VBUsageLanguageCheckbox" type="checkbox" class="ToggleLanguageCheckbox" checked="true" data-toggleclass="FilteredContentVBUsage"> <label class="LanguageFilter" for="VBUsageCheckbox"> Visual Basic (Usage) </label> <br><input data-languagename="CS" id="CSLanguageCheckbox" type="checkbox" class="ToggleLanguageCheckbox" checked="true" data-toggleclass="FilteredContentCS"> <label class="LanguageFilter" for="CSCheckbox"> C# </label> <br><input data-languagename="CPP2005" id="CPP2005LanguageCheckbox" type="checkbox" class="ToggleLanguageCheckbox" checked="true" data-toggleclass="FilteredContentCPP2005"> <label class="LanguageFilter" for="CPP2005Checkbox"> C++/CLI </label> </div> </div> <div class="BreadcrumbsContainer"><table><tr><td> <a href="C1.Win.TreeView.4~C1.Win.TreeView_namespace.html">C1.Win.TreeView Namespace</a> : C1TreeViewCancelEventArgs Class</td></tr></table></div> <div id="BodyContent"> <div class="DescriptionContent">Provides data for the <a href="C1.Win.TreeView.4~C1.Win.TreeView.C1TreeView~CheckStateChanging_EV.html">C1TreeView.CheckStateChanging</a>, <a href="C1.Win.TreeView.4~C1.Win.TreeView.C1TreeView~Collapsing_EV.html">C1TreeView.Collapsing</a>, <a href="C1.Win.TreeView.4~C1.Win.TreeView.C1TreeView~Expanding_EV.html">C1TreeView.Expanding</a>, and <a href="C1.Win.TreeView.4~C1.Win.TreeView.C1TreeView~SelectionChanging_EV.html">C1TreeView.SelectionChanging</a> events of a <a href="C1.Win.TreeView.4~C1.Win.TreeView.C1TreeView.html">C1TreeView</a> control.</div> <div class="SectionHeading" id="objectmodelSectionHeading"><span class="SectionHeadingIcon"><!-- --></span><span class="SectionHeadingText">Object Model</span></div><div id="objectmodelSectionContent" class="SectionContent"><map id="dxdiagram" name="dxdiagram"><area shape="rect" coords="2,2,170,25" href="C1.Win.TreeView.4~C1.Win.TreeView.C1TreeViewCancelEventArgs.html" alt="C1TreeViewCancelEventArgs Class"><area shape="rect" coords="18,29,141,52" href="C1.Win.TreeView.4~C1.Win.TreeView.C1TreeNode.html" alt="C1TreeNode Class"></map><img border="0" src="dotnetdiagramimages/C1_Win_TreeView_4_C1_Win_TreeView_C1TreeViewCancelEventArgs.png" usemap="#dxdiagram"></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> <li class="FilteredContentCPP2005"><a href="#Syntax-CPP2005">C++/CLI</a></li> </ul> <div id="Syntax-VB" class="FilteredContentVB"> <pre><pre><span style="color: #008000; ">'Declaration </span> </pre><pre><span style="color: #0000FF; ">Public</span> <span style="color: #0000FF; ">Class</span> C1TreeViewCancelEventArgs <span style="color: #0000FF; ">Inherits</span> <a href="#" onclick="javascript:navigateToHelp2Keyword('frlrfSystemComponentModelCancelEventArgsClassTopic','System.ComponentModel.CancelEventArgs')">System.ComponentModel.CancelEventArgs</a></pre></pre> </div> <div id="Syntax-VBUsage" class="FilteredContentVBUsage"> <pre><pre><span style="color: #008000; ">'Usage </span> </pre><pre><span style="color: #0000FF; ">Dim</span> instance <span style="color: #0000FF; ">As</span> <a href="C1.Win.TreeView.4~C1.Win.TreeView.C1TreeViewCancelEventArgs.html">C1TreeViewCancelEventArgs</a></pre></pre> </div> <div id="Syntax-CS" class="FilteredContentCS"> <pre><pre><span style="color: #0000FF; ">public</span> <span style="color: #0000FF; ">class</span> C1TreeViewCancelEventArgs : <a href="#" onclick="javascript:navigateToHelp2Keyword('frlrfSystemComponentModelCancelEventArgsClassTopic','System.ComponentModel.CancelEventArgs')">System.ComponentModel.CancelEventArgs</a> </pre></pre> </div> <div id="Syntax-CPP2005" class="FilteredContentCPP2005"> <pre><pre><span style="color: #0000FF; ">public</span> <span style="color: #0000FF; ">ref</span> <span style="color: #0000FF; ">class</span> C1TreeViewCancelEventArgs : <span style="color: #0000FF; ">public</span> <a href="#" onclick="javascript:navigateToHelp2Keyword('frlrfSystemComponentModelCancelEventArgsClassTopic','System.ComponentModel.CancelEventArgs')">System.ComponentModel.CancelEventArgs</a> </pre></pre> </div> </div> </div> <a name="exampleBookmark"></a> <div class="SectionHeading" id="inheritanceSectionHeading"><span class="SectionHeadingIcon"><!-- --></span><span class="SectionHeadingText">Inheritance Hierarchy</span></div><div id="inheritanceSectionContent" class="SectionContent"><p><a href="#" onclick="javascript:navigateToHelp2Keyword('frlrfSystemObjectClassTopic','System.Object')">System.Object</a><br> <a href="#" onclick="javascript:navigateToHelp2Keyword('frlrfSystemEventArgsClassTopic','System.EventArgs')">System.EventArgs</a><br> <a href="#" onclick="javascript:navigateToHelp2Keyword('frlrfSystemComponentModelCancelEventArgsClassTopic','System.ComponentModel.CancelEventArgs')">System.ComponentModel.CancelEventArgs</a><br> <strong>C1.Win.TreeView.C1TreeViewCancelEventArgs</strong><br> <a href="C1.Win.TreeView.4~C1.Win.TreeView.C1TreeViewToolTipTextEventArgs.html">C1.Win.TreeView.C1TreeViewToolTipTextEventArgs</a><br></p></div> <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.Win.TreeView.4~C1.Win.TreeView.C1TreeViewCancelEventArgs_members.html">C1TreeViewCancelEventArgs Members</a> <br><a href="C1.Win.TreeView.4~C1.Win.TreeView_namespace.html">C1.Win.TreeView Namespace</a> </p> </div> </div> <div id="FooterContent"> <a href="mailto:support@company.com?subject=Documentation Feedback: C1.Win.TreeView.4~C1.Win.TreeView.C1TreeViewCancelEventArgs.html">Send Feedback</a> </div> </body> </html>