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我有代码：

    $("[id$='tab_TabContainer1_TabPanel1']").click(function (event) {
        event.preventDefault(); //doesn't work apparently but doesn't error anywhere.
        var container = $find('TabContainer1'); //select the container holding the tabs to set the active tab
        if (Page_IsValid) {
            container.set_activeTabIndex(1); //go ahead to next tab
        }
        else {
            container.set_activeTabIndex(0); //Remain on this tab
        }
    });

我可以让相同的代码发出警报，但我只是不想能够前进到下一个选项卡，除非页面已经过验证。那有意义吗？

容器和选项卡在 asp.net 中定义为：

<ajaxToolkit:TabContainer ID="TabContainer1" runat="server" ActiveTabIndex="2"  EnableViewState="False">
 <ajaxToolkit:TabPanel ID="TabPanel1"  runat="server" HeaderText="TabPanel1" >
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