asp.net aspxgridview 绑定数据
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asp.net aspxgridview 绑定数据
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.Net中還提供ObjectDataSource，可以代替SqlDataSource里提供數據。而ObjectDataSource可以和業務邏輯層相連。
???? 具體操作如下：
?
?Default.aspx
?1?<%@?Page?Language="C#"?AutoEventWireup="True"?CodeBehind="Default.aspx.cs"?Inherits="webtst._Default"?%>?2?
?3?<%@?Register?Assembly="DevExpress.Web.v9.3,?Version=9.3.4.0,?Culture=neutral,?PublicKeyToken=b88d1754d700e49a"
?4?????Namespace="DevExpress.Web.ASPxPopupControl"?TagPrefix="dx"?%>
?5?
?6?<%@?Register?Assembly="DevExpress.Web.ASPxGridView.v9.3,?Version=9.3.4.0,?Culture=neutral,?PublicKeyToken=b88d1754d700e49a"
?7?????Namespace="DevExpress.Web.ASPxGridView"?TagPrefix="dx"?%>
?8?
?9?<%@?Register?Assembly="DevExpress.Web.ASPxEditors.v9.3,?Version=9.3.4.0,?Culture=neutral,?PublicKeyToken=b88d1754d700e49a"
10?????Namespace="DevExpress.Web.ASPxEditors"?TagPrefix="dx"?%>
11?
12?<!DOCTYPE?html?PUBLIC?"-//W3C//DTD?XHTML?1.0?Transitional//EN"?"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
13?
14?<html?xmlns="http://www.w3.org/1999/xhtml"?>
15?<head?runat="server">
16?????<title></title>
17?</head>
18?<body>
19?
20?????<form?id="form1"?runat="server">
21?????<div>
22?
23?????????<dx:ASPxGridView?ID="masterGridView"?runat="server">
24?????????<Templates>
25?????????<DetailRow>
26?????????<%--detail表格要指定它的DataSourceID為對應的ObjectDataSource?--%>
27?????????<dx:ASPxGridView?ID="detailGridView"?runat="server"?AutoGenerateColumns="False"?
28?????????????????DataSourceID="CarDataSource"?
29?????????????????onbeforeperformdataselect="detailGridView_BeforePerformDataSelect">
30?????????????<Columns>
31?????????????????<dx:GridViewDataTextColumn?FieldName="Id"?VisibleIndex="0">
32?????????????????</dx:GridViewDataTextColumn>
33?????????????????<dx:GridViewDataTextColumn?FieldName="CarName"?VisibleIndex="1">
34?????????????????</dx:GridViewDataTextColumn>
35?????????????</Columns>
36?????????????<%--?detail表格的這個屬性要設置為true?--%>
37?????????????<SettingsDetail?IsDetailGrid=?"true"?/>
38?????????</dx:ASPxGridView>
39?????????</DetailRow>
40?????????</Templates>
41?????????<%--?master表格的這個屬性要設置為true才能顯示出detail表?--%>
42?????????<SettingsDetail?ShowDetailRow="true"?/>
43?????????</dx:ASPxGridView>
44?????</div>
45?????<%--?ObjectDataSource的配置屬性,指定了SELECT方法為GetMyCar函數，?--%>
46?????<asp:ObjectDataSource?ID="CarDataSource"?runat="server"?
47?????????SelectMethod="GetMyCar"?TypeName="webtst.Car">
48?????????<SelectParameters>
49?????????????<%--?設置了一個Session["ID"]來源地參數id?--%>
50?????????????<asp:SessionParameter?Name="id"?SessionField="ID"?Type="Int32"?/>
51?????????</SelectParameters>
52?????</asp:ObjectDataSource>
53?????</form>
54?</body>
55?</html>
56?
?Default.aspx.cs
??1?using?System;??2?using?System.Collections.Generic;
??3?using?System.Data;
??4?using?System.Web;
??5?using?System.Web.UI;
??6?using?System.Web.UI.WebControls;
??7?using?DevExpress.Web.ASPxGridView;
??8?namespace?webtst
??9?{
?10?????public?partial?class?_Default?:?System.Web.UI.Page
?11?????{
?12?????????protected?void?Page_Load(object?sender,?EventArgs?e)
?13?????????{
?14?
?15?????????????masterGridView.DataSource?=?GetDriver();
?16?????????????masterGridView.KeyFieldName?=?"Id";
?17?????????????masterGridView.DataBind();
?18?????????}
?19?????????//后臺查詢接口，返回主表數據
?20?????????public?List<Driver>?GetDriver()
?21?????????{
?22?????????????List<Driver>?drivers?=?new?List<Driver>();
?23?????????????drivers.Add(new?Driver(0,?"Li",?"Beijing"));
?24?????????????drivers.Add(new?Driver(1,?"Wang",?"Beijing"));
?25?????????????drivers.Add(new?Driver(2,?"Zhang",?"Beijing"));
?26?????????????drivers.Add(new?Driver(3,?"Zhao",?"Beijing"));
?27?????????????drivers.Add(new?Driver(4,?"Qian",?"Beijing"));
?28?????????????return?drivers;
?29?????????}
?30?
?31?????????protected?void?detailGridView_BeforePerformDataSelect(object?sender,?EventArgs?e)
?32?????????{
?33?????????????//降主表的主鍵寫入Session，以便于ObjectDataSource在SELECT時調用
?34?????????????Session["ID"]?=?(sender?as?ASPxGridView).GetMasterRowKeyValue();
?35??????????}
?36?????????
?37?????}
?38?????//Master類
?39?????public?class?Driver
?40?????{
?41?????????private?int?_Id;
?42?????????public?int?Id
?43?????????{
?44?????????????get?{?return?_Id;?}
?45?????????????set?{?_Id?=?value;?}
?46?????????}
?47?????????private?string?_Name;
?48?????????public?string?Name
?49?????????{
?50?????????????get?{?return?_Name;?}
?51?????????????set?{?_Name?=?value;?}
?52?????????}
?53?????????private?string?_Addr;
?54?????????public?string?Addr
?55?????????{
?56?????????????get?{?return?_Addr;?}
?57?????????????set?{?_Addr?=?value;?}
?58?????????}
?59?????????public?Driver(int?id,?string?name,?string?addr)
?60?????????{
?61?????????????Id?=?id;
?62?????????????Name?=?name;
?63?????????????Addr?=?addr;
?64?????????}
?65?????????
?66?????}
?67?????//Detail類
?68?????public?class?Car
?69?????{
?70?????????private?int?_Id;
?71?????????public?int?Id
?72?????????{
?73?????????????get?{?return?_Id;?}
?74?????????????set?{?_Id?=?value;?}
?75?????????}
?76?????????private?string?_CarName;
?77?????????public?string?CarName
?78?????????{
?79?????????????get?{?return?_CarName;?}
?80?????????????set?{?_CarName?=?value;?}
?81?????????}
?82?????????public?Car(int?id,?string?carname)
?83?????????{
?84?????????????Id?=?id;
?85?????????????CarName?=?carname;
?86?????????}
?87?????????//靜態查詢函數，對應ObjectDataSource中的SelectMethod，參數對應從主表中傳入的Key
?88?????????//在ObjectDataSource根據這個參數自動產生，然后只要指定參數來源于Session中的ID即可
?89?????????public?static?List<Car>?GetMyCar(int?id)
?90?????????{
?91?????????????//隨機產生一個子表的返回數據，此處可以替換成調用其他BLL接口
?92?????????????List<Car>?cars?=?new?List<Car>();
?93?
?94?????????????cars.Add(new?Car(id,?"Car"?+?(id?*?10?+?1).ToString()));
?95?????????????cars.Add(new?Car(id,?"Car"?+?(id?*?10?+?2).ToString()));
?96?????????????cars.Add(new?Car(id,?"Car"?+?(id?*?10?+?3).ToString()));
?97?????????????cars.Add(new?Car(id,?"Car"?+?(id?*?10?+?4).ToString()));
?98?????????????return?cars;
?99?????????}
100?????????
101?????}
102?}
103?
?
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