Main differences between ASP. NET 3.5 and ASP. NET 4.0

BKJIA exclusive Article] the following features in ASP. NET 3.5 are not available in previous versions:

• ASP. NET 3.5 chart controls
• ChartAreas controls in ASP. NET 3.5
• Introduction to ASP. NET 3.5 WCF services
• ASP. NET 4.0 new features preview Enhanced Data Processing
• Improvement of ClientID in ASP. NET 4.0

◆ Ajax Integration

◆ LINQ

◆ Automatic attributes

◆ Lambda expressions

Similarly, I want everyone to figure out the difference between ASP. NET 3.5 and its next version ASP. NET 4.0. I will first list some of the content and I will sort it out later.

Client Data Access

ASP. NET 3.5: the client cannot directly access data, but there are the following work und.

Script manager PAGE method Pagemethods)

ICallbackEventHandler Interface

XMLHttphanlder component

ASP. NET 4.0: this feature is built in this version. The following describes how to execute them.

◆ Client Data Control

◆ Client Template

◆ Client data context

This means that we access data from the client through the client data view or data context object.

Set Meta keywords and Meta descriptions

Meta keywords and descriptions are useful for search engine optimization.

ASP. NET 3.5: this property has two values: True and False"

ASP. NET 4.0: The ViewStateMode attribute uses the enumeration quantity, which has three values: "Enabled", "Disabled", and "Inherit ". The default value of the Child control of the control is "Inherit", that is, inheritance.

Set Client ID

Previously, developers had some headaches when creating ClientID.

◆ ASP. NET 3.5: we have to use the ClientID attribute to find which ID is dynamically generated.

◆ ASP. NET 4.0: introduces the new ClientIDMode attribute to solve problems existing in previous versions. It can be the following values.

◆ AutoID-similar to ASP. NET 3.5;

◆ Static-no independent ClientID is generated during running;

◆ Predictable-it is particularly useful for datacontrols to make the ClientID value format the same as clientIDrowsuffix;

◆ Inherit-This value specifies that the control generates an ID like its parent object, that is, the inheritance we often call.

Source: http://www.dotnetspark.com/kb/1094-main-differences-between-asp-net-35-and.aspx

Original article name: Main Differences between ASP. NET 3.5 and ASP. NET 4.0-Part 1