Some ASP. NET knowledge points (about how. Net interacts with JS)

I.CodeTo dynamically generate JavaScript code:Previously, the JavaScript code generated in the suffix code always uses response. write to generate. Today we see two functions that allow the client to generate JavaScript code. One is

Maintain the position of the ASP. NET tree control when data is sent back.

ASP. net2.0 provides a powerful Treeview control, but it seems to have a flaw: it does not seem to be able to track the last Node Selected by the user. If you scroll to 50th nodes and expand the node, after you click the link page to send back, you

ASP. NET 2.0 use Web part to create one of the applications (2 in total)

1. webpartmanager ControlThe general control center of Web parts manages the page status (for example, display status) of Web parts and area List Management pages. When the page status changes, an event is triggered to facilitate communication

Cache in Asp.net

I have read some records of Microsoft courses. Cache Usage: to cache data that is frequently accessed and has little change. Cache the entire applicationProgram(But these settings and objects must not change during their lifetime)   Two

Conditional compilation in ASP. NET 2.0

In web development, it is too troublesome to test the function of a single page. after entering the homepage username and password, you can go to the page you want to test after some operations. (In fact, no matter what development, testing a single

ASP. NET image verification code control

I found that my work was quite complicated. After a while, the report was output and the control was made. I dispersed my thinking time. But fortunately SQL's expression for. net The progress is still smooth. The reason for doing this control

ASP. NET dialog box

ASP. NET dialog box In ASP. NETProgramIn the development process, you often need to give a prompt to the user, such as whether the operation is "successful", "OK" or "cancel.(1) click the button on the page and a dialog box is displayed, prompting

How to Establish an ASP. NET three-tier architecture

Web Layer The web layer provides applications for the client.Program. This layer is implemented as a web project in the duwamish. sln solution file. The web layer consists of ASP. NET web forms andCodeHidden file composition. Web forms only use

Asp.net uses fileupload in IE7 to preview images before uploading

Due to security issues, IE7 disabled the image control to reference local images. After several days of being depressed for this problem, I finally found a solution. I want to share some good things with you, Code As follows: This code segment

All types of Asp.net postedfile. contenttype

". *" = "Application/octet-stream"". 001" = "application/x-001"". 301" = "application/x-301"". 323" = "text/h323"". 906" = "application/x-906"". 907" = "Fig/907"". A11" = "application/x-a11"". ACP" = "audio/X-Mei-AAC"". Ai" = "application/postscript"

Common functions of ASP. net2.0

Asp.netCommon functions ABS (number)Obtain the absolute value of a value.ASC (string)Returns the first character of a string expression.ASCII.ATN (number)Returns the arc tangent of an angle. Callbyname (object, procname, usecalltype, [ARGs ()])

Clientcallback provided by ASP. net2.0

Now Ajax is very popular. Do not forget the clientcallback provided by ASP. net2.0, which is also very useful!Now let's talk about the simple implementation of clientcallback:1. First, add the icallbackeventhandler interface in the Aspx. CS file

Asp.net MVC (4)

I have a problem similar to the following in Asp.net MVC (3): There is a partial view control that is used in the home view. How do I obtain the key and value ?? It is how to pass values to the view in the partial view control. I mentioned the

Run ASP. NET successfully in Apache Environment

Because the company's products need to consider some new deployment methods in the new version, so I took the time to pay attention to some cross-platform. Net solutions. Although the Mono Project is no stranger to people developed based on. NET,

Asp.net learning-ado.net (dataadapter in connectionless Mode)

In non-connection mode, we mainly discuss the following objects: dataadapter.Dataadpater is used to transmit data between the data in the physical storage mode and the memory. Datatable indicates the database table in memory. Dataset is a set of

ASP. NET view status overview: preliminary understanding

View status management is a simple and convenient technology. Through view status management, control developers can simulate stateful and seemingly continuous execution in an originally stateless environment. The specific process is: Whenever a

Asp.net problem Point Set

This is a collection written in Asp.net.Program. The problems we encounter are gradually accumulated here. When we encounter these problems in the future, we will have an impression that we can come here to find a solution. Directory A. Why can't I

Ajax programming in Asp.net-Ajax Server Extension

Ajax server extensions are built on ASP. net2.0 and include a set of new server controls and services to simulate client Ajax behavior. This extension does not follow the traditional Ajax model, but the response method provides end users with this

Asp.net menu "Operation aborted"

Recently, a colleague used the Menu Control of asp.net 2.0, which is one of the navigation controls of asp.net 2.0. Recently, I found a problem. I put this control in masterpage. Then a page uses this masterpage. It is found that when the page

Hiding a listbox item in ASP. NET 2.0

In asp.net 2.0, you can hide an item in listbox, such ListItem item = new ListItem (text, value, enabled ); Of course, you can also use Item. Enabled = false; Although hidden in the Page, you can still use code to access the hidden options. The

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