asp.net中加载自用户定义控件

1:自定义控件：是以.ascx结尾的页面文件，用户控件必须用页面加载才能显示。

事例如下：控件内容

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="MyMicroUserList.ascx.cs" Inherits="Cfsns.Applications.MicroBlog.Web.MicroBlog.Include.MyMicroUserList" ViewStateMode="Disabled" %>
<%@ Register Src="../Common/Pager.ascx" TagName="Pager" TagPrefix="uc1" %>
<%if (false)
  { %>
//样式和js文件使用if（false）的原因是当调试的时候可用也就是DEBUG模式下可用Release模式下不可用页面人和地方都可以这么用

<%} %>
<table id="divMicroBlogUserList" class="frame">
    <colgroup>
        <col class="padding_left_width" />
        <col class="logo_user" />
        <col />
        <col style=" 60px;" />
    </colgroup>
    <tbody class="alter_row_color line_height_normal">
        <asp:Repeater ID="DataList1" runat="server">
            <ItemTemplate>
                <tr keyvalue='<%# Eval("UserId") %>'>
                    <td rowspan="3">
                    </td>
                    <td class="logo_user" rowspan="3">
                        <asp:Image runat="server" userid='<%# Eval("UserId") %>' role="popUserInfo" ImageUrl='<%# Eval("Logo") %>' AlternateText='<%# Eval("RealName") %>' />
                    </td>
                    <td>
                        <asp:HyperLink runat="server" Text='<%# Eval("RealName") %>' NavigateUrl='<%# Cfsns.Applications.MicroBlog.WebConfigs.PagePath.PFollowedList.ToReplaceQueryString("MicroBlogUserType",MicroBlogUserType).ToReplaceQueryString("UserId",Eval("UserId"))%>' CssClass="text_weight" />
                        <asp:Literal runat="server" Text='<%# Eval("Title")%>' />
                    </td>
                    <td rowspan="3">
                        <span class="icon_ListenToEachOther" title="相互关注" runat="server" visible='<%#((int)Eval("SearchFollowedType")==(int)Cfsns.Types.MicroBlogSearchTypes.FollowedAndFans) %>'></span>
                        <div class="frame">
                            <a runat="server" href="javascript:void(0)" title="取消关注" onclick='<%# Eval("UserId","microBlogContent.toggleFollowed(this,\"{0}\")") %>'>
                                <%# (int)Eval("SearchFollowedType") >= (int)Cfsns.Types.MicroBlogSearchTypes.Followed ? "取消关注" : "关注"%></a>
                        </div>
                        <asp:HyperLink runat="server" NavigateUrl='<%# UrlRedirect.ToReplaceQueryString("UserId",Eval("UserId")).ToReplaceQueryString("OnlyUser",true)%>' Text="查看微博" />
                    </td>
                </tr>
                <tr keyvalue='<%# Eval("UserId") %>'>
                    <td>
                        <asp:Literal ID="Literal2" runat="server" Text='<%# Eval("CompanyName") %>' />
                    </td>
                </tr>
                <tr keyvalue='<%# Eval("UserId") %>'>
                    <td class="text_unimportant">
                        博文：<%# Eval("MicroBlogCount") %>| 粉丝：<%# Eval("MicroBlogFansCount") %></td>
                </tr>
            </ItemTemplate>
        </asp:Repeater>
        <tr id="divEmpty" runat="server">
            <td class="text_empty" colspan="3">
                没有找到任何用户
            </td>
        </tr>
    </tbody>
</table>

控件前台页面

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Cfsns.Interface;
using Cfsns.Common.Tools.DataExtension;

namespace Cfsns.Applications.MicroBlog.Web.MicroBlog.Include
{
    public partial class MyMicroUserList : System.Web.UI.UserControl, IControlDataList
    {
        Cfsns.Types.MicroBlogSearchTypes microBlogUserType;

        public Cfsns.Types.MicroBlogSearchTypes MicroBlogUserType
        {
            get { return microBlogUserType; }
            set { microBlogUserType = value; }
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                initScript();
            }
        }

        private void initScript()
        {
#if DEBUG
            Cfsns.Common.Tools.Web.JavaScript.RegistScript(this.Page, WebConfigs.ApplicationInfo.RootControlPath + "Source/JS/PathDebug.js");
#else
            Cfsns.Common.Tools.Web.JavaScript.RegistScript(this.Page, WebConfigs.ApplicationInfo.RootControlPath + "Source/JS/PathRelease.js");
#endif
            Cfsns.Common.Tools.Web.JavaScript.RegistScript(this.Page, "~/Source/JS/JOperateCommon.js");
            Cfsns.Common.Tools.Web.JavaScript.RegistScript(this.Page, WebConfigs.ApplicationInfo.RootControlPath + "Source/JS/JMicroBlog.js");

        }

        #region IControlDataList 成员

        public System.Data.DataSet DataSource
        {
            set
            {
                DataList1.DataSource = value.ToSourceTable();
                Pager1.DataSource = value.ToPagerTable();
                divEmpty.Visible = value.IsEmpty();
            }
        }

        private bool editMode;
        public bool EditMode
        {
            set { editMode = value; }
            get { return editMode; }
        }

        #endregion

        #region IControlDataBind 成员

        public object ControlDataBind()
        {
            DataList1.DataBind();
            Pager1.DataBind();
            return true;
        }

        #endregion

        #region IUrlRedirect 成员

        private string urlRedirect = WebConfigs.PagePath.PDefault;

        public string UrlRedirect
        {
            get { return urlRedirect; }
            set { urlRedirect = value; }
        }

        #endregion
    }
}

控件后台内容

下面是加载控件的代码：

 try
                {
                  con = Page.LoadControl(Cfsns.Applications.MicroBlog.WebConfigs.PagePath.PLoadMicroUseList);//这句话是把控件加载到内从中
                }
                catch (Exception ex)
                {
                    Cfsns.Applications.Api.MasterPage.PopUpMessage(this.Page, ex.Message, true);
                    Cfsns.Bll.SiteLog.LogIt(ex, 10, null);
                    return;
                }
                PlaceHolder1.Controls.Add(con);//这里是把控件内容输出到页面上

//绑定控件数据

 OperateSqlAnswer answer = Bll.MicroBlog.MicroBlogUserList(searchContent);
            IControlDataList icontrolDataList = con as IControlDataList;
            icontrolDataList.DataSource = answer.DataSource;
            icontrolDataList.UrlRedirect = WebConfigs.PagePath.PDefault.AppendCurrentQueryString("OnlyUser").AppendCurrentQueryString("UserId").ToReplaceQueryString("ScrollPostionId", "PagerToScrollId").ToReplaceQueryString("p", 2);
            icontrolDataList.DataSource = answer.DataSource;
            icontrolDataList.ControlDataBind();