在MOSS2007下实现多国语言跳转菜单

为了能够方便地在不同语言间切换，我们需要一个MOSS2007下的多国语言跳转菜单。（关于如何配置多国语言，可以参考MSDN Creating Site Variations 。）在网上查过一些资料后发现，微软已经默认提供了一个这样的控件，其使用方法如方法一。通过反编译微软实现的控件的DLL文件，我查出了实现该功能的WSS API（在WSS的SDK中居然查不到这个DLL的API说明，害我在上面苦查了半天！），利用这些API，我实现了自己的多国语言跳转菜单控件。其实现代码如方法二。

方法一（如何使用微软提供的控件）：

Open your master page either within SharePoint Designer, Visual Studio, Notepad, etc.

Add a Register TagPrefix to the page (if it isn’t already present)
<%@ Register TagPrefix=”PublishingVariations” TagName=”VariationsLabelMenu” src=”~/_controltemplates/VariationsLabelMenu.ascx” %>

Place the Variation Menu Label (where you would like it to show up) between the <Form></Form> as follows:
<PublishingVariations:VariationsLabelMenu id=”labelmenu1″ runat=”server”/>

Check In & Publish the Master page

On your sharepoint server(s) open the ‘VariationsLabelMenu.ascx’ file in notepad - file location: %DRIVE%\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\CONTROLTEMPLATES\

You will see that the cms:VariationsLabelIEcbMenu is outcommented with <%– –%> comments. Remove these comment tags and save the file.

Your VariationsLabelMenu works fine now!

注：经过测试发现，其实不需要自行在MasterPage中添加该控件，MasterPage已经包含一段显示该控件的代码：<SharePoint:DelegateControl runat="server" ControlId="GlobalSiteLink0"/>

方法二（我自己实现的控件）：

<%@ Control Language="C#" ClassName="MultiLanguageMenu" %>
<%@ Assembly Name="Microsoft.SharePoint.Publishing, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c"%>
<%@ Import Namespace="System" %>
<%@ Import Namespace="System.Collections" %>
<%@ Import Namespace="System.Web.UI" %>
<%@ Import Namespace="System.Web.UI.WebControls" %>
<%@ Import Namespace="Microsoft.SharePoint" %>
<%@ Import Namespace="Microsoft.SharePoint.Publishing" %>

<script runat="server">

    private bool visable = true;
    private string itemCssClass = string.Empty;
    private string menuCssClass = string.Empty;
    private string normalCssClass = string.Empty;
    private string activeCssClass = string.Empty;
    private string mLeaveScript = string.Empty;
    private string mEnterScript = string.Empty;
    private string mClickScript = string.Empty;

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {            
            try
            {
                mLeaveScript = "document.getElementById('{0}').className = '{1}'; document.getElementById('{2}').style.display = 'none';";
                mEnterScript = "document.getElementById('{0}').className = '{1}';";
                mClickScript = "document.getElementById('{0}').style.display = 'block';";
                pnlItem.Attributes.Add("onmouseleave", string.Format(mLeaveScript, pnlCurVariation.ClientID, normalCssClass, pnlMenuHold.ClientID));
                pnlCurVariation.Attributes.Add("onmouseenter", string.Format(mEnterScript, pnlCurVariation.ClientID, activeCssClass));
                pnlCurVariation.Attributes.Add("onclick", string.Format(mClickScript, pnlMenuHold.ClientID));

                pnlItem.Visible = visable;
                pnlItem.CssClass = itemCssClass;
                pnlCurVariation.CssClass = normalCssClass;
                pnlMenu.CssClass = menuCssClass;

                CreateMenu();
            }
            catch (Exception ex)
            {
                lblCurVariation.Text = ex.Message;
            }
        }
    }

    public bool Visable
    {
        get { return visable; }
        set { visable = value; }
    }

    public string ItemCssClass
    {
        get { return itemCssClass; }
        set { itemCssClass = value; }
    }

    public string MenuCssClass
    {
        get { return menuCssClass; }
        set { menuCssClass = value; }
    }

    public string NormalCssClass
    {
        get { return normalCssClass; }
        set { normalCssClass = value; }
    }

    public string ActiveCssClass
    {
        get { return activeCssClass; }
        set { activeCssClass = value; }
    }

    private void CreateMenu()
    {
        ArrayList varList = new ArrayList();
        
        foreach (VariationLabel varLabel in Variations.Current.UserAccessibleLabels)
        {
            if (varLabel.Locale == SPContext.Current.Web.Locale.LCID.ToString())
            {
                lblCurVariation.Text = varLabel.DisplayName;
            }
            else
            {
                varList.Add(varLabel);
            }
        }

        dlVariations.DataSource = varList;
        dlVariations.DataBind();
    }

</script>

<asp:Panel ID="pnlItem" runat="server">
    <asp:Panel ID="pnlCurVariation" runat="server">
        <asp:Label ID="lblCurVariation" runat="server" Text="Language Not Found"></asp:Label><asp:Image ID="Image1"
            runat="server" ImageUrl="~/_layouts/images/menudark.gif" ImageAlign="textTop" /><br />
    </asp:Panel>
    <asp:Panel ID="pnlMenuHold" runat="server" Style="display: none; position: absolute;
        z-index: 20;">
        <iframe style="position: absolute; z-index: -1; filter: alpha(opacity=0);"></iframe>
        <asp:Panel ID="pnlMenu" runat="server">
            <asp:DataList ID="dlVariations" runat="server" RepeatLayout="Flow">
                <ItemTemplate>
                    <asp:HyperLink ID="HyperLink1" NavigateUrl='<%# DataBinder.Eval(Container, "DataItem.TopWebUrl")%>'
                        runat="server" Width="100%"><%# DataBinder.Eval(Container, "DataItem.DisplayName")%></asp:HyperLink>
                </ItemTemplate>
            </asp:DataList>
        </asp:Panel>
    </asp:Panel>
</asp:Panel>