ASP.Net Panel JQuery SlideToggle Postback

时间:2010-04-14 17:30:03

标签: c# asp.net

我有一个带有隐藏它的样式的asp.net面板,我正在使用JQuery来滑动使用超链接切换面板。这很好用。但是,如果我在页面上添加一个导致回发的按钮,则面板将默认返回隐藏状态。我理解为什么会发生这种情况但是在发生回发时保持面板可见性状态的最佳方法是什么?

<head runat="server">
    <title></title>

    <script type='text/javascript' src="jquery-1.4.1.min.js">
    </script>

    <style type="text/css">
        .panel
        {
            display: none;
        }
    </style>

    <script type="text/javascript">
        $(function() {
            $("#Link1").click(function(evt) {
                evt.preventDefault();
                $('#panelText').slideToggle('slow');
            });
        });
    </script>

</head>
<body>
    <form id="form1" runat="server">
    <asp:HyperLink ID="Link1" runat="server" NavigateUrl="#">SlideToggle
    </asp:HyperLink><br />
    <asp:Panel ID="panelText" runat="server" CssClass="panel">
        Some text</asp:Panel>
    <asp:Button ID="button1" runat="server" Text="Postback" />
    </form>
</body>
</html>

2 个答案:

答案 0 :(得分:6)

以下是我解决问题的方法......

<head runat="server">
    <title></title>

    <script type='text/javascript' src="jquery-1.4.1.min.js">
    </script>

    <style type="text/css">
        .panel
        {
            display: none;
        }
    </style>

    <script type="text/javascript">
        $(function() {
            $("#Link1").click(function(evt) {
                evt.preventDefault();
                $('#panelText').slideToggle('slow');
                if ($('#panelText').hasClass('panel')) {
                    $('#PanelState').attr('value', 'true');
                } else {
                    $('#PanelState').attr('value', 'false');
                }                
             });
        });

        $(document).ready(function() {
            if ($('#PanelState').attr('value') == 'false') {
                $('#panelText').addClass('panel');
            }
        });
    </script>

</head>
<body>
    <form id="form1" runat="server">
    <asp:HiddenField ID="PanelState" runat="server" Value="false" />
    <asp:HyperLink ID="Link1" runat="server" NavigateUrl="#">SlideToggle
    </asp:HyperLink><br />
    <asp:Panel ID="panelText" runat="server">
        Some text</asp:Panel>
    <asp:Button ID="button1" runat="server" Text="Postback" />
    </form>
</body>
</html>

答案 1 :(得分:4)

在表单中添加隐藏字段:

 <asp:HiddenField id="hdnPanelState" runat="Server" value="false" />

并修改JS函数:

<script type="text/javascript">
    $(function() {
        $("#Link1").click(function(evt) {
            evt.preventDefault();
            $('#panelText').slideToggle('slow');
            //YOU WILL ALSO NEED TO CALCULATE IF SHOWING PANEL OR HIDING 
            $("#hdnPanelState").attr("value","true");//Store Value
        });
    });
</script>