в 15:30, 26 мая 2010

2010-05-26T15:30:57Z

Admin: 1 версия

2010-05-26T11:57:25Z

1 версия

Новая страница

== Caching with a User Control==



<source lang="csharp">
OutputCache directive causes the contents of the User Control to be cached in memory for a maximum of 10 minutes (600 seconds).
File: Control.ascx
<%@ Control Language="C#" ClassName="Products" %>
<%@ OutputCache Duration="600" VaryByParam="none" %>
User Control Time:
<%= DateTime.Now.ToString("T") %>
<asp:GridView
id="grdProducts"
DataSourceID="srcProducts"
Runat="server" />
<asp:SqlDataSource
id="srcProducts"
ConnectionString="<%$ ConnectionStrings:Products %>"
SelectCommand="SELECT Title,Director FROM Products"
Runat="server" />

File: ShowUserControlCache.aspx
<%@ Page Language="C#" %>
<%@ Register TagPrefix="user" TagName="Products" Src="~/Control.ascx" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Show User Control Cache</title>
</head>
<body>
<form id="form1" runat="server">
<div>
Page Time:
<%= DateTime.Now.ToString("T") %>
<hr />
<user:Products
id="Products1"
Runat="server" />
</div>
</form>
</body>
</html></source>

== Creating a User Control Cache File Dependency==



<source lang="csharp">
File: Control.ascx
<%@ Control Language="C#" ClassName="ProductFileDependency"
%> <%@ OutputCache Duration="9999" VaryByParam="none" %>
<script runat="server">
void Page_Load()
{
CacheDependency depend = new CacheDependency(MapPath("~/Products.xml"));
this.CachePolicy.Dependency = depend;
}
</script>
User Control Time:
<%= DateTime.Now.ToString("T") %>
<hr />
<asp:GridView
id="grdProducts"
DataSourceID="srcProducts"
Runat="server" />
<asp:XmlDataSource
id="srcProducts"
DataFile="Products.xml"
Runat="server" /></source>

== Programmatically caching a User Control.==



<source lang="csharp">
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<script runat="server">
void Page_Load()
{
PartialCachingControl cacheMe = (PartialCachingControl)Page.LoadControl("Control.ascx");
cacheMe.CachePolicy.SetExpires(DateTime.Now.AddSeconds(15));
PlaceHolder1.Controls.Add(cacheMe);
lblCacheDuration.Text = cacheMe.CachePolicy.Duration.ToString();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Show Dynamic User Control</title>
</head>
<body>
<form id="form1" runat="server">
<div>
Cache Duration:
<asp:Label
id="lblCacheDuration"
Runat="server" />
<hr />
<asp:PlaceHolder
id="PlaceHolder1"
Runat="server" />
</div>
</form>
</body>
</html>

File: Control.ascx
<%@ Control Language="C#" ClassName="Products" %>
<%@ OutputCache Duration="600" VaryByParam="none" %>
User Control Time:
<%= DateTime.Now.ToString("T") %>
<asp:GridView
id="grdProducts"
DataSourceID="srcProducts"
Runat="server" />
<asp:SqlDataSource
id="srcProducts"
ConnectionString="<%$ ConnectionStrings:Products %>"
SelectCommand="SELECT Title,Director FROM Products"
Runat="server" /></source>

== Sharing a User Control Output Cache==



<source lang="csharp">
File: Control.ascx
<%@ Control Language="C#" ClassName="SharedProducts"%>
<%@ OutputCache Duration="600" VaryByParam="none" Shared="true" %>
User Control Time:
<%= DateTime.Now.ToString() %>
<asp:GridView
id="grdProducts"
DataSourceID="srcProducts"
Runat="server" />
<asp:SqlDataSource
id="srcProducts"
ConnectionString="<%$ ConnectionStrings:Products %>"
SelectCommand="SELECT Title,Director FROM Products"
Runat="server" /></source>

← Предыдущая	Версия 15:30, 26 мая 2010
(нет различий)

ASP.NET Tutorial/Cache/User Control - История изменений

в 15:30, 26 мая 2010

Admin: 1 версия