自定义控件代码如下
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="TextLink.ascx.cs" Inherits="PoEB.Web.Controls.TextLink" %>
<asp:PlaceHolder ID="PlaceHolder1" runat="server" />
后台代码
public partial class TextLink : System.Web.UI.UserControl
{
/// <summary>
/// 商品调用位ID
/// </summary>
[Browsable(true),
Description("商品调用位ID")]
public int SpaceID
{
get;
set;
}
/// <summary>
/// 显示数量
/// </summary>
[Browsable(true),
Description("显示数量")]
public int Number
{
get;
set;
}
private ITemplate _template = null;
[TemplateContainer(typeof(ItemContainer))]
[Description("链接模板")]
[PersistenceMode(PersistenceMode.InnerDefaultProperty)]
public ITemplate Template
{
get
{
return _template;
}
set
{
_template = value;
}
}
protected void Page_Load(object sender, EventArgs e)
{
DataBind();
}
void Page_Init()
{
if (Template != null && SpaceID > 0 && Number > 0)
{
BLL.WebSpaceLink bllWebSpaceLink = new BLL.WebSpaceLink();
List<Model.WebSpaceLink> list = bllWebSpaceLink.GetListFromCache(SpaceID, Number);
if (list != null)
{
int i = 0;
foreach (Model.WebSpaceLink model in list)
{
ItemContainer container = new ItemContainer(i, model.LinkText,model.LinkUrl,model.Target);
_template.InstantiateIn(container);
PlaceHolder1.Controls.Add(container);
i++;
}
}
}
}
public class ItemContainer : Control, INamingContainer
{
private int _index;
private string _text;
private string _url;
private string _target;
internal ItemContainer(int index, string text,string url,string target)
{
_index = index;
_text = text;
_url = url;
_target = target;
}
/// <summary>
/// 友情链接ID
/// </summary>
[Description("链接文本")]
[Bindable(true)]
public string LinkText
{
get { return _text; }
}
/// <summary>
/// 网站名称
/// </summary>
[Description("链接网址")]
[Bindable(true)]
public string LinkUrl
{
get { return _url; }
}
/// <summary>
/// 打开窗口类型
/// </summary>
[Description("打开窗口类型")]
[Bindable(true)]
public string Target
{
get { return _target; }
}
/// <summary>
/// 数据索引顺序.
/// </summary>
[Description("数据索引顺序")]
[Bindable(true)]
public int ItemIndex
{
get { return _index; }
}
}
}
调用页面
<%@ Register TagPrefix="uc2" TagName="TextLink" Src="~/Controls/TextLink.ascx" %>
<uc2:TextLink runat="server" ID="txtlk" SpaceID="102" Number="10">
<Template>
<%--这里该如何写--%>
</Template>
</uc2:TextLink>
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