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Paradoxal Press

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Category: Programming
Level: Beginner to seasoned
900 pages
ISBN-10 097661322-0
ISBN-13 978-097661322-0
$59.99 USA
$79.99 CANADA


Listing 23-56 extracted from chapter ASP.NET 2


Listing 23-55<     > Listing 23-57



Example_23_56.aspx
<%@ Page Language="C#" %>
<%@ Import Namespace ="System.Data" %>
<%@ Import Namespace ="System.Data.Common" %>
<%@ Import Namespace ="System.Data.SqlClient" %>
<script runat="server">
protected void Page_Load(object sender, EventArgs e) {
   DataView dv = Cache["Employees"as DataView;
   if ( dv == null ) {
      using DbDataAdapter dAdapter = new SqlDataAdapter(
       "SELECT * FROM EMPLOYEES",
       "server = localhost ; uid=sa ; pwd =; database = ORGANIZATION")){
         DataSet ds = new DataSet();
         dAdapter.Fill( ds );
         dv = ds.Tables[0].DefaultView;
         dv.AllowDelete = false;
         dv.AllowEdit = false;
         dv.AllowNew = false;
         Cache.Insert("Employees", dv, 
            new SqlCacheDependency("DbORGANIZATION","EMPLOYEES"));
      // end using dAdapter.
   }
   else Response.Write("Loaded from cache!");
   MyList.DataSource = dv;
   MyList.DataTextField = "SurName";
   DataBind();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
   <body>
   <form id="Form1" runat="server">
   <asp:ListBox ID="MyList" runat="server"/>
   </form>
   </body>
</html>	
Copyright Patrick Smacchia 2006 2007