功能強大的組件。我這里主要介紹一下 asp.net 端的代碼： Code
?1??????????????????<asp:DataList?id="dlstProducts"?DataSourceID="srcProducts"?RepeatColumns="1"?Runat="server">
?2??????????????????????<ItemTemplate>??
?3???????????????????????????Property?()Property<%#IIf(CType(Eval("Manynumber"),?Integer)?>?1,?"&nbsp;"?&?Eval("Numberproperyies")?&?"&nbsp;",?"&nbsp;")%>details
?4???????????????????????????<br?/><br?/>??
?5???????????????????????????<asp:Label?ID="dizhi"?runat="server"?Text="di?zhi?:?"?CssClass="title2"></asp:Label>
?6???????????????????????????<%#Eval("dizhi")%></span>
?7???????????????????????????<br?/><br?/>
?8???????????????????????????<asp:Label?ID="youbian"?runat="server"?Text="you?bian:??"?CssClass="title2"></asp:Label>
?9???????????????????????????<%#Eval("youbian")%>
10???????????????????????????<br?/><br?/>
11???????????????????????????<asp:Label?ID="jiage1"?runat="server"?Text="jia?ge?1?:??"?CssClass="title2"></asp:Label>
12???????????????????????????<%#String.Format("{0:c}",?Eval("jiage1"))%>
13???????????????????????????<br?/><br?/>
14???????????????????????????<asp:Label?ID="jiage2"?runat="server"?Text="jia?ge?2?:??"?CssClass="title2"></asp:Label>
15???????????????????????????<%#IIf(Eval("jiage2")?=?0,?"",?String.Format("{0:c}",?Eval("Contentsvalue")))?&?"<br?/><br?/>"%>
16???????????????????????</ItemTemplate>
17??????????????????</asp:DataList>
18??????????????
19?????????????????<asp:ObjectDataSource?id="srcProducts"
20?????????????????????????TypeName="xxx.xxxxClass"
21?????????????????????????SelectMethod="SelectCustomerId"?Runat="server"?OnSelecting="srcProducts_Selecting">
22????????????????????????<SelectParameters>
23??????????????????????????????<asp:Parameter?Name="CustomerID"?Type="Int32"?/>
24????????????????????????</SelectParameters>????
25?????????????????</asp:ObjectDataSource>? app_code 的類 Code
Imports?Microsoft.VisualBasic
Imports?System
Imports?System.IO
Imports?System.Data
Imports?System.Data.SqlClient
Imports?System.Web.Configuration
Imports?System.Collections.Generic

Namespace?xxxx

????'''?<summary>
????'''?Represents?a?product?and?methods?for
????'''?working?with?products
????'''?</summary>
????Public?Class?xxxxClass

????????Private?Shared?ReadOnly?_connectionString?As?String
????????Private?_id?As?Integer
????????Private?_manynumber?As?Integer
????????Private?_dizhi?As?String
????????Private?_youbian?As?String
????????Private?_jiage1?As?Decimal
????????Private?_jiage2?As?Decimal
????????Private?_number?As?String

????????Public?Property?Id()?As?Integer
????????????Get
????????????????Return?_id
????????????End?Get
????????????Set(ByVal?Value?As?Integer)
????????????????_id?=?Value
????????????End?Set
????????End?Property

????????Public?Property?dizhi()?As?String
????????????Get
????????????????Return?_dizhi
????????????End?Get
????????????Set(ByVal?Value?As?String)
????????????????_dizhi?=?Value
????????????End?Set
????????End?Property

????????Public?Property?Number()?As?String
????????????Get
????????????????Return?_number
????????????End?Get
????????????Set(ByVal?Value?As?String)
????????????????_number?=?Value
????????????End?Set
????????End?Property

????????Public?Property?youbian()?As?String
????????????Get
????????????????Return?_youbian?
????????????End?Get
????????????Set(ByVal?Value?As?String)
????????????????_youbian?=?Value
????????????End?Set
????????End?Property

????????Public?Property?jiage1()?As?Decimal
????????????Get
????????????????Return?_jiage1
????????????End?Get
????????????Set(ByVal?Value?As?Decimal)
????????????????_jiage1?=?Value
????????????End?Set
????????End?Property


????????Public?Property?jiage2()?As?Decimal
????????????Get
????????????????Return?_jiag2
????????????End?Get
????????????Set(ByVal?Value?As?Decimal)
????????????????_jiage2?=?Value
????????????End?Set
????????End?Property


????????'''?<summary>
????????'''?Select?all?products?in?a?particular?category
????????'''?</summary>
????????'''?

????????Public?Shared?Function?SelectCustomerId(ByVal?CustomerID?As?Integer)?As?List(Of?xxxxClass)
????????????'?Initialize?command
????????????Dim?con?As?New?SqlConnection(_connectionString)
????????????Dim?cmd?As?New?SqlCommand("xxxxxSelectByCustomerId",?con)
????????????cmd.CommandType?=?CommandType.StoredProcedure

????????????'?Add?parameters
????????????cmd.Parameters.AddWithValue("@CustomerID",?CustomerID)

????????????Dim?results?As?New?List(Of?PropertyClass)()
????????????Using?con
????????????????con.Open()
????????????????Dim?reader?As?SqlDataReader?=?cmd.ExecuteReader()
????????????????While?reader.Read()
????????????????????results.Add(New?xxxxClass(reader))
????????????????End?While
????????????End?Using
????????????Return?results
????????End?Function


????????'''?<summary>
????????'''?Initializes?a?product?from?a?DataReader
????????'''?</summary>
????????Public?Sub?New(ByVal?reader?As?SqlDataReader)

????????????_id?=?CType(reader("CustomerID"),?Integer)
????????????_dizhi=?CType(reader("dizhi"),?String)
????????????_youbian=?CType(reader("youbian"),?String)
????????????_jiage1=?CType(reader("jiage1"),?Decimal)
????????????_jiage2=?CType(reader("jiage2"),?Decimal)

????????????_manynumber?=?CType(reader("manynumber?"),?Integer)
????????End?Sub

????????'''?<summary>
????????'''?Retrieve?database?connection?string?from?Web?configuration
????????'''?</summary>
????????Shared?Sub?New()

????????????_connectionString?=?"data?source=sdd,user?name=xxx,?password=xxxx"

????????End?Sub

????End?Class
End?Namespace

?

這些代碼是 幫助理解， 做個小測試。

轉載于:https://www.cnblogs.com/sandy_liao/archive/2008/12/12/1353943.html

總結

以上是生活随笔為你收集整理的组件 DataList 和 ObjectDataSource的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。