Question

我的数据源是webforms项目中的客户列表

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" });

}

有没有办法在Web表单项目的aspx页面中迭代它。（这在使用该模型的mvc中很容易）？

Answer 1

使用Repeater控件。这是一个例子：

标记：

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

代码背后：

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

使用服务器控件的“DataSource”:(在示例DropDownList中）

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，如果您需要，可以在aspx中使用'MVC-style'：

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

列表<type>访问webform标记</type>

2 个答案: