Last night a friend asked to complete the news in the previous period of the website to add a feature, that is, in each news browsing page, add a print ammonium button. Let the user print a little bit, can print the entire article. A friend at first,
output caching past and present life
asp.net 1.0 introduces the concept of output caching, which allows developers to cache the output of pages, controls, controllers, and HTTP responses to memory. In subsequent Web requests, ASP. NET, you can use
First, the preface
This simple tutorial really happened to me when I was writing another page command. And then came in and looked at what it was, and found that it was only possible to use. ashx, and only in the application for this file to be
The first line in the Default.aspx page is a page instruction:
Where the Codebehind property specifies the name of the code-behind page, inherits specifies the namespace and class to which it belongs, and the AutoEventWireup property is
1. Interface arrangementThis part of the functionality involved in the main control two: one is (ID) WebFile file field control, to browse the upload files path, the other is (ID) for the Btnupload upload button, click it to complete the file upload.
Like operating a local computer, you need to provide each network user with their own hard disk space, the user can log in after their own space management. Management is multifaceted, first users should be able to see all the content under their
1.1.1 Summary
Our system has recently faced severe performance bottlenecks due to increased traffic and requests from clients at the same time, which forces us to address this problem from two aspects, increase hardware and improve system
1, the list page, the General List page is mainly used to display data, the list page provided in this article, data display and paging, delete operations, new and modified operations. Because there are some people in the garden that are using
Its function is very simple, that is, first look in the database as the name of the field, and then to judge, if its value is empty, then the value of number plus 1.
For example, the addition of black is what we need to pay attention to.
Now begin to study the first step, how to define your own routing rules to achieve pseudo static functional requirements.
The basic principle of realization of the following diagram:
First, about namespaces.
The function of routing is to make
①, data Format validation control (RegularExpressionValidator)
Copy Code code as follows:
A pattern match is made to the control you want to validate by customizing the regular expression.
Take the previous piece of code for
In the Web site development process, often encountered a kind of demand scenario is:
1: The page contains hot news, hot news parts need to update 10 minutes, and the other parts of the entire page will not change within 1 days;
2: The first page
1. The foreground unfolds realizesFind this jquery online. Jcrop, a little look, found that it provides the effect can fully meet the project requirements.
Official website: http://deepliquid.com/content/Jcrop.html, interested friends can go and
You can use Session,application to cache data in a Web project, or you can cache it by using cache.
Today we are particularly concerned with cache caching. The cache is located under the namespace System.Web.Caching namespace, and what we see here
The steps for the IIS7 site to start and process the request are shown below:
Steps 1 through 6, is to process the application startup, after the boot is good, no longer need to go this step.
The 8 steps in the above diagram are as follows:
The function of the shopping cart is as follows:
. Add and remove items from your car via Ajax.
. Deleted items are displayed and can be added back to the shopping cart.
. Well... No, the specific people continue to see it.
The structure of the
Most of the functionality is implemented through template columns, in order to easily select and delete the use of its own features and methods, it is easy to achieve, did not find any major problems, but in the deployment to the server, found that
Add caching support to the data tier, business logic tier, UI, or output layer. Memory is now very cheap-therefore, a great performance improvement can be achieved by implementing caching in the entire application in an intelligent manner. Caching
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