In ASP.NET can I cache a <body>'s background image?

=?Utf-8?B?TWlrZQ==?=

Hi. I'm building an ASP.NET 2.0 web-app for a customer. The customer wants
a background image that's 124k in size as the background for each page. I've
recommended they use a smaller-size image, but the customer is absolutely
adamant about using the image.

I'm afraid that this large image will degrade performance if it's loaded for
each page. Can I somehow use ASP.NET caching to cache the background image
so it doesn't have to refresh on each page load?

Thanks, Mike

Nov 25 '07 #1

Subscribe Reply

2281

Juan T. Llibre

Set a custom header, which specifies "max-age".

Open the IIS Manager snap-in from Administrative Tools, pick an app,
right click, go to Properties, switch to the HTTP Headers tab, and click Add.

Add cache-control extensions like this:

In the "Custom Header Name", type : Cache-Control

In the Custom Header Value, type :

"Cache-Control:max-age=NumberOfSec onds"

OK your way out of the dialog...

I use :
"Cache-Control:max-age=1200"
....which will cache images for the default session timout ( 20 minutes ).

Juan T. Llibre, asp.net MVP
asp.net faq : http://asp.net.do/faq/
foros de asp.net, en español : http://asp.net.do/foros/
=============== =============== ========
"Mike" <Mi**@discussio ns.microsoft.co mwrote in message news:23******** *************** ***********@mic rosoft.com...

Hi. I'm building an ASP.NET 2.0 web-app for a customer. The customer wants
a background image that's 124k in size as the background for each page. I've
recommended they use a smaller-size image, but the customer is absolutely
adamant about using the image.

I'm afraid that this large image will degrade performance if it's loaded for
each page. Can I somehow use ASP.NET caching to cache the background image
so it doesn't have to refresh on each page load?

Thanks, Mike

Nov 25 '07 #2

Alexey Smirnov

On Nov 25, 3:57 pm, Mike <M...@discussio ns.microsoft.co mwrote:

Can I somehow use ASP.NET caching to cache the background image
so it doesn't have to refresh on each page load?

Mike, you can also write a custom HttpHandler and map images to the
ASP.NET ISAPI in IIS. And then from ASP.NET you will be able to add
cache contol values, the same what Juan told you

Response.Cache. AppendCacheExte nsion("max-age=NumberOfSec onds");

I would also recommend you to check:
http://aspnetresources.com/blog/cach...xtensions.aspx

Nov 25 '07 #3

=?Utf-8?B?TWlrZQ==?=

Thank you both for your help!

"Alexey Smirnov" wrote:

On Nov 25, 3:57 pm, Mike <M...@discussio ns.microsoft.co mwrote:
Can I somehow use ASP.NET caching to cache the background image
so it doesn't have to refresh on each page load?

Mike, you can also write a custom HttpHandler and map images to the
ASP.NET ISAPI in IIS. And then from ASP.NET you will be able to add
cache contol values, the same what Juan told you

Response.Cache. AppendCacheExte nsion("max-age=NumberOfSec onds");

I would also recommend you to check:
http://aspnetresources.com/blog/cach...xtensions.aspx

Nov 26 '07 #4

=?Utf-8?B?V2FpbmFnZQ==?=

Easiest way ... CSS file

-------------------------------------------------------------
body { background-image: url( 'images/massivepic.jpg' ); }
-------------------------------------------------------------

Browsers will cache background images.

Nov 29 '07 #5

Similar topics

11076

<HR> Style Bug in IE6

by: Mark Moore | last post by:

It looks like there's a pretty serious CSS bug in IE6 (v6.0.2800.1106). The HTML below is validated STRICT HTML 4.01 and renders as I would expect in Opera, FrontPage, and Netscape. For some reason, there's an annoying vertical gap between adjacent rules that doesn't go away. This looks like IE6 is incorrectly setting the margin to some arbitrary value. Does anyone know if this is a known bug at MS? If you know of one, post the...

HTML / CSS

116807

<td> with background image - what's the right way?

by: Derek Fountain | last post by:

I have a horizontal navigation bar, which is a single row table containing the right images. It "stretches" itself across the screen using a penultimate td like this: <td width="100%" background="images/nav_bar/nb_spacer.gif"> </td> which works in all major browsers that I've tried, but doesn't validate. No background attribute to the td tag, apparently. What is the correct way to do this? A stylesheet entry with a

HTML / CSS

2572

Position of <a> inside <li> in a styled navigation <ul>

by: Andrew Donaldson | last post by:

I'd welcome some help in understanding what's going on with graphical browsers in the navigation list at: http://www.bounceandtickle.org.uk/index.html (This site is not about what it might seem from the URL!) I'm using a <ul> for the gimmicky teddy bear links. The teddy is a background image for each <li>. Each link 'button' is an <a> within an <li>, and I'm trying to get the button to appear partway down the teddy

HTML / CSS

13024

HTML <SELECT><OPTION> Tag With Image and Text

by: Chris Fink | last post by:

Does anyone know it is possible to include a small image(.gif .jpeg) within a <SELECT><option> so that the user would see the option text as well as a little image(icon) in the option? I know this is not an ASP.NET related question, but I know this group is knowledgeable and quick with responses. Thanks

ASP.NET

2524

by: Just D. | last post by:

Who knows what should we include into aspx file to show some image as a background picture but only once at the top of the page? I don't want to add the Image control because even if it uses a transparent gif image I can't use LinkButtons over this image. The string that I'm using now is: <body background="BMP/Header.gif" MS_POSITIONING="GridLayout"> Maybe I should use something else in place of GridLayout?

ASP.NET

2214

Margin in <body>

by: Greg Heilers | last post by:

Perplexing problem: All of a sudden, the code I am tinkering with; renders a white-space margin around all four edges of the browser window (Mozilla, Firefox, Konqueror, and Opera). I can not figure out why. Here is the section from the style sheet: body { margin:0; color:#002200;

HTML / CSS

4931

Dynamically setting a MasterPage's <body> tag style

by: Mark Rae | last post by:

Hi, It's easy enough for a child page to manipulate its MasterPage's header simply by modifying the MasterPage thus: <header runat="server"> .... .... </header>

ASP.NET

13539

<p> tag within a <div> does not respect CSS width, or any width for that matter.

by: Agix | last post by:

Hi there, Please check out : http://clarifysolutions.co.uk/certenroll/ The source is included below. This page is a test, so I can play about with paddings, margins and layouts using divs as semantically meaningless containers for bunch's of other elements - like everyone keeps telling me to make my code standards compliant. This request is not because I want a fix, but because I want to

HTML / CSS

5753

font-size in <table> is not herited from <body> ?

by: PYG | last post by:

Hi everybody I have a simple question : If i use this code : <body style="font-size:24px;color:blue;"> Text in body <table> <tr><td> Text in table

HTML / CSS

9589

What is ONU?

by: marktang | last post by:

ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...

General

10049

Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

by: jinu1996 | last post by:

In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...

Online Marketing

7413

Access Europe - Using VBA to create a class based on a table - Wed 1 May

by: isladogs | last post by:

The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...

Microsoft Access / VBA

6675

Couldn’t get equations in html when convert word .docx file to html file in C#.

by: conductexam | last post by:

I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...

C# / C Sharp

5309

Trying to create a lan-to-lan vpn between two differents networks

by: TSSRALBI | last post by:

Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...

Networking - Hardware / Configuration

5448

Windows Forms - .Net 8.0

by: adsilva | last post by:

A Windows Forms form does not have the event Unload, like VB6. What one acts like?

Visual Basic .NET

3965

transfer the data from one system to another through ip address

by: 6302768590 | last post by:

Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system

C# / C Sharp

3565

How to add payments to a PHP MySQL app.

by: muto222 | last post by:

How can i add a mobile payment intergratation into php mysql website.

PHP

2815

Comprehensive Guide to Website Development in Toronto: Expert Insights from BSMN Consultancy

by: bsmnconsultancy | last post by:

In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

General