Repeater 双向排序

zoukankan html css js c++ java

Repeater 双向排序

Repeater 双向排序
做项目的时候，DataGrid ,DataList,Repeater 三个控件都是很优秀的数据显示控件，DataGrid的方便，简单易用，功能强大，但对性能会有所影响，在loading页面的时候大量的Html会占用一些时间，DataList 较之DataGrid功能显然减少一些，经常在一些特殊的页面制作或需求中来用,经常简单的页面显示收据表格，使用Repeater+Table即方便又快捷，但是却没有DataGrid那样方便，最近做项目，全部使用Repeater,但是客户突然要求要对数据表格进行排序，惨了~~~~~，第一印象就是DataGrid控件有排序功能，要换控件吗？靠，那么多表单，全部换DataGrid会出人命，于是就想办法，来实现Repeater的排序。下面就是我做的一个Repeater实现双向排序的例子：主要使用LinkButton，Repeater，ViewState,Cache结合来完成的。
效果如下图：

下载原代码：/Files/vaiyanzi/Attch/RepeaterOrder.rar
前台Html代码：

<%@ Page language="c#" Codebehind="RepeaterOrderForm.aspx.cs" AutoEventWireup="false" Inherits="RepeaterOrder.RepeaterOrderForm" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
    <HEAD>
        <title>RepeaterOrderForm</title>
        <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
        <meta name="CODE_LANGUAGE" Content="C#">
        <meta name="vs_defaultClientScript" content="JavaScript">
        <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
    </HEAD>
    <body MS_POSITIONING="GridLayout">
        <form id="Form1" method="post" runat="server">
            <table border=1 bordercolor=#330033 bordercolordark=#999933 bordercolorlight=black>
            <tr>
            <td colspan=5 align=center><font color=blue size=12>Repeater实现双向排序功能</font></td>
            </tr>
                <asp:Repeater id="rpOrder" runat="server">
                    <HeaderTemplate>
                        <tr align=center >
                            <td>
                                <asp:LinkButton ID="LastName" Runat="server" text="LastName" CommandName="LastName"></asp:LinkButton></td>
                            <td>
                                <asp:LinkButton ID="FirstName" Runat="server" text="FirstName" CommandName="FirstName"></asp:LinkButton></td>
                            <td>
                                <asp:LinkButton ID="Title" Runat="server" text="Title" CommandName="Title"></asp:LinkButton></td>
                            <td>
                                <asp:LinkButton ID="Address" Runat="server" text="Address" CommandName="Address"></asp:LinkButton></td>
                            <td>
                                <asp:LinkButton ID="City" Runat="server" text="City" CommandName="City"></asp:LinkButton></td>

                        </tr>
                    </HeaderTemplate>
                    <ItemTemplate>
                        <tr>
                            <td><%# DataBinder.Eval(Container.DataItem,"LastName")%></td>
                            <td><%# DataBinder.Eval(Container.DataItem,"FirstName")%></td>
                            <td><%# DataBinder.Eval(Container.DataItem,"Title")%></td>
                            <td><%# DataBinder.Eval(Container.DataItem,"Address")%></td>
                            <td><%# DataBinder.Eval(Container.DataItem,"City")%></td>
                        </tr>
                    </ItemTemplate>
                </asp:Repeater>
            </table>
        </form>
    </body>
</HTML>
后台CS文件：

  1using System;
  2using System.Collections;
  3using System.ComponentModel;
  4using System.Data;
  5using System.Drawing;
  6using System.Web;
  7using System.Web.SessionState;
  8using System.Web.UI;
  9using System.Web.UI.WebControls;
10using System.Web.UI.HtmlControls;
11using System.Data.SqlClient;
12using System.Configuration;
13
14namespace RepeaterOrder
15{
16    /**//// <summary>
17    /// RepeaterOrderForm 的摘要说明。
18    /// </summary>
19    public class RepeaterOrderForm : System.Web.UI.Page
20    {
21        protected System.Web.UI.WebControls.Repeater rpOrder;
22        private readonly string CONNECTIONSTRING=ConfigurationSettings.AppSettings["ConnectionString"];
23        private void Page_Load(object sender, System.EventArgs e)
24        {
25            if(!IsPostBack)
26            {
27                BindRepeater();
28            }
29        }
30        private DataView GetData
31        {
32            get
33            {
34                return Cache["_data"] as DataView;
35            }
36            set
37            {
38                if( Cache["_data"]==null)
39                    Cache["_data"]=value;
40            }
41        }
42        Web 窗体设计器生成的代码
64
65        private SqlConnection Conn()
66        {
67            return new SqlConnection(CONNECTIONSTRING);
68        }
69
70        private void BindRepeater()
71        {
72            DataSet ds=new DataSet();
73            SqlDataAdapter da=new SqlDataAdapter("Select * From Employees",Conn());
74            da.Fill(ds);
75            GetData=ds.Tables[0].DefaultView;
76            rpOrder.DataSource=ds.Tables[0];
77            rpOrder.DataBind();
78        }
79
80        private void rpOrder_ItemCommand(object source, RepeaterCommandEventArgs e)
81        {
82            if(e.Item.ItemType==ListItemType.Header)
83            {
84                LinkButton lkbtnSort=(LinkButton)e.Item.FindControl(e.CommandName.Trim());
85                if(ViewState[e.CommandName.Trim()]==null)
86                {
87                    ViewState[e.CommandName.Trim()]="ASC";
88                    lkbtnSort.Text=lkbtnSort.Text+"▲";
89                }
90                else
91                {
92                    if(ViewState[e.CommandName.Trim()].ToString().Trim()=="ASC")
93                    {
94                        ViewState[e.CommandName.Trim()]="DESC";
95                        if(lkbtnSort.Text.IndexOf("▲")!=-1)
96                            lkbtnSort.Text=lkbtnSort.Text.Replace("▲","▼");
97                        else
98                            lkbtnSort.Text=lkbtnSort.Text+"▼";
99                    }
100                    else
101                    {
102                        ViewState[e.CommandName.Trim()]="ASC";
103                        if(lkbtnSort.Text.IndexOf("▼")!=-1)
104                            lkbtnSort.Text=lkbtnSort.Text.Trim().Replace("▼","▲");
105                        else
106                            lkbtnSort.Text=lkbtnSort.Text+"▲";
107                    }
108                }
109                ViewState["text"]=lkbtnSort.Text;
110                ViewState["id"]=e.CommandName.Trim();
111                DataView dv=GetData;
112                dv.Sort=e.CommandName.ToString().Trim()+" "+ViewState[e.CommandName.Trim()].ToString().Trim();
113                rpOrder.DataSource=dv;
114                rpOrder.DataBind();
115            }
116        }
117
118        private void rpOrder_ItemDataBound(object sender, RepeaterItemEventArgs e)
119        {
120            if(e.Item.ItemType==ListItemType.Header)
121            {
122                if(ViewState["id"]!=null)
123                {
124                    LinkButton lkbtnSort=(LinkButton)e.Item.FindControl(ViewState["id"].ToString().Trim());
125                    lkbtnSort.Text=ViewState["text"].ToString();
126                }
127            }
128        }
129    }
130}
131

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原文地址：https://www.cnblogs.com/skyshenwei/p/1652766.html