ASP.Net/ADO.net Database/ListBox — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
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(нет различий)
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Текущая версия на 14:50, 26 мая 2010
Bind data source to asp:ListBox
<source lang="csharp">
<%@ Page Language="VB" %> <script runat="server">
Function AllPublishers() As System.Data.SqlClient.SqlDataReader Dim connectionString As String = "server="(local)\NetSDK"; trusted_connection=true; Database="pubs"" Dim sqlConnection As System.Data.SqlClient.SqlConnection = New System.Data.SqlClient.SqlConnection(connectionString) Dim queryString As String = "SELECT [publishers].* FROM [publishers]" Dim sqlCommand As System.Data.SqlClient.SqlCommand = New System.Data.SqlClient.SqlCommand(queryString, sqlConnection) sqlConnection.Open Dim dataReader As System.Data.SqlClient.SqlDataReader = sqlCommand.ExecuteReader(System.Data.rumandBehavior.CloseConnection) Return dataReader End Function Sub Page_Load(sender As Object, e As EventArgs) Page.DataBind() End Sub
</script> <html> <head> </head> <body>
<form runat="server">
<asp:CheckBoxList id="CheckBoxList1" runat="server" DataSource="<%# AllPublishers() %>" DataTextField="pub_name" DataValueField="pub_id"></asp:CheckBoxList>
<asp:RadioButtonList id="RadioButtonList1" runat="server" DataSource="<%# AllPublishers() %>" DataTextField="pub_name" DataValueField="pub_id"></asp:RadioButtonList>
<asp:DropDownList id="DropDownList1" runat="server" DataSource="<%# AllPublishers() %>" DataTextField="pub_name" DataValueField="pub_id"></asp:DropDownList>
<asp:ListBox id="ListBox1" runat="server" DataSource="<%# AllPublishers() %>" DataTextField="pub_name" DataValueField="pub_id"></asp:ListBox>
<asp:Repeater id="Repeater1" runat="server" DataSource="<%# AllPublishers() %>">
<HeaderTemplate>
Publisher List:
</HeaderTemplate>
<ItemTemplate>
<%# DataBinder.Eval(Container.DataItem, "pub_name") %> (ID: <%# DataBinder.Eval(Container.DataItem, "pub_id") %>) <%# DataBinder.Eval(Container.DataItem, "city") %>, <%# DataBinder.Eval(Container.DataItem, "state") %>, <%# DataBinder.Eval(Container.DataItem, "country") %>
</ItemTemplate>
</asp:Repeater>
<asp:DataList id="DataList1" runat="server" DataSource="<%# AllPublishers() %>"> <ItemTemplate> <p> ID: <asp:Label id="Label6" runat="server" Text="<%# DataBinder.Eval(Container.DataItem, "pub_id") %>"></asp:Label> Name: <asp:Label id="Label7" runat="server" Text="<%# DataBinder.Eval(Container.DataItem, "pub_name") %>"></asp:Label>
Address: <asp:Label id="Label8" runat="server" Text="<%# DataBinder.Eval(Container.DataItem, "city") %>"></asp:Label> , <asp:Label id="Label9" runat="server" Text="<%# DataBinder.Eval(Container.DataItem, "state") %>"></asp:Label> , <asp:Label id="Label10" runat="server" Text="<%# DataBinder.Eval(Container.DataItem, "country") %>"></asp:Label>
</ItemTemplate> <HeaderTemplate> <asp:Label id="Label1" runat="server" Font-Names="Tahoma" Font-Italic="True">List of publishers:</asp:Label>
</HeaderTemplate> <FooterTemplate>
</FooterTemplate> <SeparatorTemplate>
</SeparatorTemplate> </asp:DataList> </p> </form>
</body> </html>
</source>
Binding a ListBox Control to a Data Source
<source lang="csharp">
<%@ Page Language=VB Debug=true %> <%@ Import Namespace="System.Data" %> <%@ Import Namespace="System.Data.OLEDB" %> <script runat=server> Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs)
If Not IsPostBack Then Dim DBConn as OleDbConnection Dim DBCommand As OleDbDataAdapter Dim DSPageData as New DataSet DBConn = New OleDbConnection( _ "PROVIDER=Microsoft.Jet.OLEDB.4.0;" _ & "DATA SOURCE=" _ & Server.MapPath("EmployeeDatabase.mdb;")) DBCommand = New OleDbDataAdapter _ ("Select ID, FirstName " _ & "From Employee " _ & "Order By FirstName", DBConn) DBCommand.Fill(DSPageData, _ "Employee") lbDepartments.DataSource = _ DSPageData.Tables("Employee").DefaultView lbDepartments.DataBind() End If
End Sub
</SCRIPT>
<HTML>
<HEAD>
<TITLE>Binding a ListBox Control to a Data Source</TITLE>
</HEAD>
<Body LEFTMARGIN="40">
<form runat="server">
<asp:listbox
id="lbDepartments" datatextfield="FirstName" datavaluefield="ID" rows=3 runat="server"
/> </form> </BODY> </HTML>
</source>
<A href="http://www.nfex.ru/Code/ASPDownload/EmployeeDatabase.zip">EmployeeDatabase.zip( 10 k)</a>