列表<type>訪問

Question

我的數據源是客戶在web表單列表項目

protected void Page_Load(object sender, EventArgs e) 
{ 
    List<Customer> customers = new List<Customer>(); 
    customers.Add(new Customer() { FirstName = "John", PhoneNumber = "999.999.9999" }); 
    customers.Add(new Customer() { FirstName = "Jane", PhoneNumber = "999.999.9999" }); 

} 

有迭代，在一個網頁表單項目的aspx頁面的方式。 （這在使用模型的mvc中很容易）？

Answer 1

對此使用Repeater控件。下面是一個例子：

標記：

<asp:Repeater ID="CustomerRepeater" runat="server"> 
    <ItemTemplate> 
     <span>Name:</span> <%# Eval("FirstName") %> 
     <span>Phone:</span> <%# Eval("PhoneNumber ") %> 
    </ItemTemplate> 
</asp:Repeater> 

代碼後面：服務器控制的

protected void Page_Load(object sender, EventArgs e) 
{ 
    List<Customer> customers = new List<Customer>(); 
    customers.Add(new Customer() { FirstName = "John", PhoneNumber = "999.999.9999" }); 
    customers.Add(new Customer() { FirstName = "Jane", PhoneNumber = "999.999.9999" }); 

    CustomerRepeater.DataSource = customers; 
    CustomerRepeater.DataBind(); 
} 

Answer 2

使用`的DataSource」：（實施例中的DropDownList）

Default.aspx.cs

protected void Page_Load(object sender, EventArgs e) 
{ 
    if (!this.IsPostBack) 
    { 
     this.ddlCustomers.DataSource = this.GetCustomers(); 
     this.ddlCustomers.DataBind(); 
    } 
} 

public List<Customer> GetCustomers() 
{ 
    List<Customer> customers = new List<Customer>(); 
    customers.Add(new Customer() { FirstName = "John", PhoneNumber = "999.999.9999" }); 
    customers.Add(new Customer() { FirstName = "Jane", PhoneNumber = "999.999.9999" }); 

    return customers; 
} 

Default.aspx的

<asp:DropDownList ID="ddlCustomers" runat="server" DataTextField="FirstName" DataValueField="FirstName"></asp:DropDownList> 

或者，如果你需要，你可以在ASPX使用 'MVC式'：

<% foreach(WebApplication1.Customer customer in this.GetCustomers()) { %> 
    <span><%= customer.FirstName %></span> 
<% } %>