Question

假设：

<div class="subMenu">
    <a href="products.aspx" class="subLink">Products</a> <a href="productCats.aspx" class="subLink">Categories</a> <a href="example.aspx" class="subLink">Another</a> 
</div>

在我的代码背后，我将如何以编程方式更改该div中的链接列表？

在我的代码背后，我会有以下几点：

if(menuID == 0) {
  // Display some links here
}else if(menuID == 1) {
  // Display some links here
}else if(menuID == 2) {
  // Display some links here
}

抱歉简单，只是想学习。

Answer 1

稍微复杂的方式：

<asp:repeater id="rptMenu" runat="server">
   <itemTemplate>
     <a href='<%# Eval("LinkUrl") %>' class="subLink"><%# Eval("LinkName") %></a>
   <itemTemplate>
</asp:repeater>

然后在后端建立一个链接列表并将它们绑定到转发器。

public class MenuItem
{
    public string LinkUrl { get; set; }
    public string LinkName { get; set; }
}

public void Page_Load()
{
    //GetMenuItems would populate this list, depending on your logic
    List<MenuItem> menuItems = GetMenuItems(menuId);
    rptMenu.DataSource = menuItems;
    rptMenu.DataBind()
}

这样做的好处是你可以从数据库中驱动它，如果需要，你可以轻松编辑输出。

Answer 2

我认为你应该使用Panel控件并在里面添加超链接。

ASPX页面：

<asp:Panel ID="TestPanel" CssClass="Submenu" runat="server">
</asp:Panel>

代码背后的代码：

switch (menuId)
    {
        case 0: 
            TestPanel.Controls.Add(new HyperLink { Text = "Test", NavigateUrl = "testUrl", CssClass="Sublink" });
            TestPanel.Controls.Add(new HyperLink { Text = "Test2", NavigateUrl = "testUrl2", CssClass = "Sublink" });
            break;
        case 1:
            TestPanel.Controls.Add(new HyperLink { Text = "xxx", NavigateUrl = "xxx", CssClass="Sublink" });
            TestPanel.Controls.Add(new HyperLink { Text = "xxx", NavigateUrl = "xxx", CssClass = "Sublink" });
            break;
        case 2:
            TestPanel.Controls.Add(new HyperLink { Text = "xxx", NavigateUrl = "xxx", CssClass = "Sublink" });
            TestPanel.Controls.Add(new HyperLink { Text = "xxx", NavigateUrl = "xxx", CssClass = "Sublink" });
            break;
        default:
            break;
    }

Answer 3

一种简单的方法：

    <div class="subMenu">
    <%= myLinks %> 
</div>



 if(menuID == 0) {
  myLinks = "<a href='products.aspx' class='sublink'>Products</a>etc.. etc.. "
}else if(menuID == 1) {
  myLinks = "<a href='products.aspx' class='sublink'>Products</a>etc.. etc.. "
}else if(menuID == 2) {
  myLinks = "<a href='products.aspx' class='sublink'>Products</a>etc.. etc.. "
}

添加：

Protected myLinks as string = ""

低于班级定义。

Answer 4

我不知道这是不是最好的方式 - 但它是一种方式：）

[Serializable]
public class MyLinks
{
    public string cLink;
    public string cTitle;
}

public partial class Dokimes_StackOverFlow_AplesDokimes : System.Web.UI.Page
{
    MyLinks [] MyLinksAre = {
            new MyLinks{cLink = "products.aspx", cTitle = "products"},
            new MyLinks{cLink = "ProductCat.aspx", cTitle = "catalog"},
            new MyLinks{cLink = "Paradeigma.aspx", cTitle = "example"},

    };


    protected void Page_Load(object sender, EventArgs e)
    {
        StringBuilder sRenderOnMe = new StringBuilder();
        int menuID = 0;
        switch (menuID)
        {
            case 0:
                foreach (int i in new int[] { 0, 1 })
                    sRenderOnMe.AppendFormat("<a href=\"{0}\">{1}</a>", MyLinksAre[i].cLink, MyLinksAre[i].cTitle);
                break;


            default:
                foreach (int i in new int[] { 0, 1, 2 })
                    sRenderOnMe.AppendFormat("<a href=\"{0}\">{1}</a>", MyLinksAre[i].cLink, MyLinksAre[i].cTitle);
                break;
        }

        txtMenouRender.Text = sRenderOnMe.ToString();
    }
}

在页面上

<asp:Literal runat="server" ID="txtMenouRender"></asp:Literal>

Answer 5

你想要一个简单的href标签或一些asp.net控件吗？

<div class="subMenu">
<% if(menuID == 0) { %>
    <a href="products.aspx" class="subLink">Products</a>
<% } else if(menuID == 1) { %>
    <a href="productCats.aspx" class="subLink">Categories</a>
<% } else { %>
    <a href="example.aspx" class="subLink">Another</a> 
<% } %>
</div>

您还可以添加控件：

<div class="subMenu">
<% if(menuID == 0) { %>
    <asp:LinkButton ID="Test" runat="server" OnClick="Test_OnClick" class="subLink">Products</LinkButton>
<% } else if(menuID == 1) { %>
    <a href="productCats.aspx" class="subLink">Categories</a>
<% } else { %>
    <a href="example.aspx" class="subLink">Another</a> 
<% } %>
</div>

ASP.net改变链接的最佳方式

5 个答案: