</ iframe > </noscript> <!-- End Google Tag Manager (noscript) --> <div id="BeforeHeaderContent"> </div> <div id="HeaderContent"> <div id="ProjectTitle">Editor for WinForms</div> <div id="PageTitle"><div id="PageTitleText">Enabling and Disabling Commands</div></div> </div> <div id="AfterHeaderContent"> <!-- Spacing --> <span id="ToggleAllSectionsLink" class="FunctionLink"> <label id="CollapseAllLabel">Collapse All</label> <label id="ExpandAllLabel" style="display: none;">Expand All</label> </span> </div> <div class="BreadcrumbsContainer"><table><tr><td> <a href="creatinganxhtmledito.html">Creating an XHTML Editor in Code</a> > <a href="thetoolstripmainclas.html">The ToolStripMain class</a> > Enabling and Disabling Commands</td></tr></table></div> <div id="BodyContent"> <p>Many of the commands described above may or may not be available depending on whether a document is currently loaded, the selection state, or the clipboard content. If a command is not available, it should be disabled in the tool strip.</p> <p>The <b>ToolStripMain</b> class handles this by overriding the <b>UpdateState</b> method as follows:</p> <p class="hs-toggler">To write code in C#</p> <div class="hs-toggler-container" style="DISPLAY: none"> <div class="FilteredContentCS" data-title="CS" data-itemid="CS"> <table class="SyntaxTable"> <tbody> <tr> <th>C#</th> <th> <div class="CopyCodeWrapper"> <span class="CopyCode">Copy Code</span> </div> </th> </tr> <tr> <td colspan="2"> <pre> public override void UpdateState() { Enabled = Editor != null; _btnCopy.Enabled = _btnCut.Enabled = Editor.CanCopy; _btnPaste.Enabled = Editor.CanPasteAsText; // CanPaste _btnUndo.Enabled = Editor.CanUndo(); _btnRedo.Enabled = Editor.CanRedo(); _btnSpell.Enabled = _btnShowErrors.Enabled = SpellChecker != null; } </pre> </td> </tr> </tbody> </table> </div> </div> <p>The implementation is self-explanatory. The <a href="C1.Win.C1Editor.4~C1.Win.C1Editor.C1Editor.html">C1Editor</a> provides properties and methods that allow the toolstrip to update itself very easily.</p> <a name="seealsobookmark"></a> </div> <div id="FooterContent"> <p> </p><p> </p><hr style="height: 1px"><p>Copyright (c) <script type="text/javascript"> var theDate=new Date() document.write(theDate.getFullYear()) </script> GrapeCity, inc. All rights reserved. <script> $(document).ready(function() { if (!(window.self !== window.top)) { // Not running in a frameset // Get the page name var pageName = location.href.substring(location.href.lastIndexOf("/") + 1); if (pageName.indexOf("#") != -1) { pageName = pageName.substring(0, pageName.indexOf("#")); } // Append to webframe.html var framePage = "webframe.html#" + pageName; location.href = framePage; } }); </script></p> <a target="_blank" href="http://our.componentone.com/groups/">Product Support Forum</a> | <a target="_blank" href="http://feedback.componentone.com/forums/255782-winforms-documentation">Documentation Feedback</a> </div> </body> </html>