Mega Code Archive
Returning a Single Value
<![CDATA[
File: Default.aspx
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<%@ Import Namespace="System.Web.Configuration" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void btnSearch_Click(object sender, EventArgs e)
{
string connectionString = WebConfigurationManager.ConnectionStrings["Products"].ConnectionString;
SqlConnection con = new SqlConnection(connectionString);
SqlCommand cmd = new SqlCommand("SELECT Totals FROM Products WHERE Title=@Title", con);
cmd.Parameters.AddWithValue("@Title", txtTitle.Text);
using (con)
{
con.Open();
Object result = cmd.ExecuteScalar();
if (result != null)
lblResult.Text = String.Format("{0:c}", result);
else
lblResult.Text = "No match!";
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Show Execute Scalar</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h1>Box Office Totals</h1>
<asp:Label
id="lblTitle"
Text="Product Title:"
AssociatedControlID="txtTitle"
Runat="server" />
<asp:TextBox
id="txtTitle"
Runat="server" />
<asp:Button
id="btnSearch"
Text="Search"
OnClick="btnSearch_Click"
Runat="server" />
<hr />
<asp:Label
id="lblResult"
Runat="server" />
</div>
</form>
</body>
</html>
File: Web.config
<configuration>
<connectionStrings>
<add name="Products"
connectionString="Data Source=.\SQLEXPRESS;
AttachDbFilename=|DataDirectory|MyDatabase.mdf;Integrated Security=True;User Instance=True" />
</connectionStrings>
</configuration>
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