例子：
using system.web.caching
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<html>
<script language="C#" runat="server">
void Page_Load(Object Src, EventArgs E) {
DataView Source;
// Retrieve the DataView object from Cache. If not exist, then add DataView object to the Cache.
Source = (DataView)Cache["MyDataSet"];
if (Source == null) {
SqlConnection myConnection = new SqlConnection("Server=ServerName; database=Pubs; user id=UID; password=PWD;");
SqlDataAdapter myCommand = new SqlDataAdapter("select * from Authors", myConnection);
DataSet ds = new DataSet();
myCommand.Fill(ds, "Authors");
Source = new DataView(ds.Tables["Authors"]);
Cache["MyDataSet"] = Source;
CacheMsg.Text = "Dataset created explicitly";
}
else {
CacheMsg.Text = "Dataset retrieved from cache";
}
// Binding the DataView object with DataGrid.
MyDataGrid.DataSource=Source;
MyDataGrid.DataBind();
}
</script>
<body>
<form method="GET" runat="server">
<h3><font face="Verdana">Caching Data</font></h3>
<ASP:DataGrid id="MyDataGrid" runat="server"
Width="700"
BackColor="#ccccff"
BorderColor="black"
ShowFooter="false"
CellPadding=3
CellSpacing="0"
Font-Name="Verdana"
Font-Size="8pt"
HeaderStyle-BackColor="#aaaad" />
<p>
<i><asp:label id="CacheMsg" runat="server"/></i>
</form>
</body>
</html>
ASP.NET Cache是提升系统性能的重要方法，它使用了“最近使用”原则（a least-recently-used algorithm）。在数据库访问中经常会用到Cache保存数据库数据。 1.缓存的添加：Cache的添加方法有Add()或Insert（），两种方法几乎类似，只是Inser方法可以使用可选参数，即使用默认参数，来实现缓存的�
