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<%@ Page Language="C#" %>
<%@ import Namespace="System.Data" %>
<%@ import Namespace="System.Data.SqlClient" %>
<script runat="server">
SqlDataReader myReader;
void Page_Load(object sender, EventArgs e)
{
string ConnectionString = Convert.ToString(ConfigurationSettings.AppSettings["MSDEConnectString"]);
SqlConnection myConnection = new SqlConnection(ConnectionString);
SqlCommand myCommand = new SqlCommand();
myCommand.Connection = myConnection;
try {
myConnection.Open();
if (!(Page.IsPostBack)) {
myCommand.CommandText = "SELECT PublisherID, PublisherName FROM Publisher";
myReader = myCommand.ExecuteReader();
ListBox1.DataBind();
myReader.Close();
} else {
myCommand.CommandText = "SELECT * FROM Book WHERE BookPublisherID=" + ListBox1.SelectedItem.Value;
myReader = myCommand.ExecuteReader();
DataGrid1.DataSource = myReader;
DataGrid1.DataBind();
myReader.Close();
}
} catch (Exception ex) {
throw (ex);
} finally {
myConnection.Close();
}
}
</script>
<html>
<head>
</head>
<body>
<form runat="server">
<h2>A RadioButtonList
</h2>
<asp:RadioButtonList id="RadioButtonList1" runat="server" AutoPostBack="True" DataValueField="PublisherID" DataTextField="PublisherName" DataSource="<%# myReader %>"></asp:RadioButtonList>
<h2>A DropDownList
</h2>
<asp:DropDownList id="DropDownList1" runat="server" AutoPostBack="True" DataValueField="PublisherID" DataTextField="PublisherName" DataSource="<%# myReader %>"></asp:DropDownList>
<h2>A ListBox
</h2>
<asp:ListBox id="ListBox1" runat="server" AutoPostBack="True" DataValueField="PublisherID" DataTextField="PublisherName" DataSource="<%# myReader %>" Rows="5"></asp:ListBox>
<asp:Label id="Label1" runat="server"></asp:Label>
<asp:DataGrid id="DataGrid1" runat="server" HorizontalAlign="Justify" BorderColor="#CC9966" BackColor="White" CellPadding="4" BorderWidth="1px" BorderStyle="None">
<FooterStyle forecolor="#330099" backcolor="#FFFFCC"></FooterStyle>
<HeaderStyle font-bold="True" forecolor="#FFFFCC" backcolor="#990000"></HeaderStyle>
<PagerStyle horizontalalign="Center" forecolor="#330099" backcolor="#FFFFCC"></PagerStyle>
<SelectedItemStyle font-bold="True" forecolor="#663399" backcolor="#FFCC66"></SelectedItemStyle>
<ItemStyle forecolor="#330099" backcolor="White"></ItemStyle>
</asp:DataGrid>
</form>
</body>
</html>
File: Web.config
<configuration>
<appSettings>
<add key="MSDEConnectString" value="server=(local)\YourDatabase;database=Books;uid=YourID;pwd=letmein;" />
</appSettings>
</configuration>
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