</ iframe > </noscript> <!-- End Google Tag Manager (noscript) --> <div id="BeforeHeaderContent"> </div> <div id="HeaderContent"> <div id="ProjectTitle">Windows 7 Control Pack for WinForms</div> <div id="PageTitle"><div id="PageTitleText">C1TaskDialog Operating System Compatibility</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="workingwithwindows7c.html">Working with Windows 7 Control Pack for WinForms</a> > <a href="workingwithc1taskdia.html">Working with C1TaskDialog</a> > C1TaskDialog Operating System Compatibility</td></tr></table></div> <div id="BodyContent"> <div id="HSShowAll" align="right"> <a onclick="showAllDropDownSections();" href="#"><img border="0" alt="Show All" src="images/hs-toggler-collapsed.png">Show All</a> </div> <div id="HSHideAll" align="right"> <a onclick="hideAllDropDownSections();" href="#"><img border="0" alt="Hide All" src="images/hs-toggler-expanded.png">Hide All</a> </div> <p><b>C1TaskDialog</b> is only supported on Windows Vista or later. The control will simply not display on older versions of Windows and will not throw an exception. If the <a href="C1.Win.C1Win7Pack.4~C1.Win.C1Win7Pack.C1TaskDialog.html">C1TaskDialog</a> control is included in an application that may be run on previous versions of Windows – Windows XP, for example – you may want to specify an alternative dialog box so that important messages are displayed. You can do so by using the <a href="C1.Win.C1Win7Pack.4~C1.Win.C1Win7Pack.C1TaskDialog~IsPlatformSupported.html">IsPlatformSupported</a> property to detect the user's operating system.</p> <p>For example:</p> <p class="hs-toggler">To write code in Visual Basic</p> <div class="hs-toggler-container" style="DISPLAY: none"> <div class="FilteredContentVB" data-title="VB" data-itemid="VB"> <table class="SyntaxTable"> <tbody> <tr> <th>Visual Basic</th> <th> <div class="CopyCodeWrapper"> <span class="CopyCode">Copy Code</span> </div> </th> </tr> <tr> <td colspan="2"> <pre> If C1TaskDialog.IsPlatformSupported Then c1TaskDialog1.Show() Else <font color="green">' Show a brief message with simple choice of the action</font> Dim res As DialogResult = MessageBox.Show("Text", "Caption", MessageBoxButtons.YesNoCancel) If res = DialogResult.Yes Then .... End If End If </pre> </td> </tr> </tbody> </table> </div> </div> <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> if (C1TaskDialog.IsPlatformSupported) c1TaskDialog1.Show(); else { <font color="green">// Show a brief message with simple choice of the action</font> DialogResult res = MessageBox.Show("Text", "Caption", MessageBoxButtons.YesNoCancel); if (res == DialogResult.Yes) { ... } } </pre> </td> </tr> </tbody> </table> </div> </div> <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>