In the first section of this tutorial, we provide an example of using a typed dataset directly. However, after we add the BLL class, the presentation layer can work through BLL. In the example of AllProducts. aspx in Section 1 of this tutorial,
Step 5: complete the data access layer
Note that the ProductsTableAdapters class returns the values of CategoryID and SupplierID from the Products table, but does not include the CategoryName field of the Categories table and the CompanyName field
Authentication and authorization
ASP. NET and IIS are used together to support authentication, and basic, brief, and Windows authentication are used. ASP. NET supports the Microsoft Passport Authentication Service, which provides a single Logon
Use using System. Data. OracleClient; and add reference System. Data. OracleClient with version 1.0.5000.0 to connect to the oracle database.
Prerequisites: Install at least the ORAcle9I client and open the oracle listener in "Control Panel>
No matter which underlying platform is used, reliability and performance are the main requirements for all Web applications, although in a sense, these two requirements are conflicting. For example, to build a more reliable and robust application,
Cookie (HttpCookie instance) provides a method to store user-specific information in Web applications. For example, when a user accesses your site, you can use cookies to store user preferences or other information. When the user visits your website
How does symmetric encryption algorithm implement ASP. NET data encryption? The following is a detailed description:
The following is the code for implementing ASP. NET data encryption in C # of symmetric encryption algorithm. You can change
Because ASP. NET Processing Process in machine. the configuration in the config configuration file is , which means your ASP. the performance parameters used by the. NET application depend on machine. config.The following parameters are
About ASP. NET code separation code-behind:
Visual Studio. NETVS. NET) provides a very intuitive Web development environment for Visual Basic developers. VB developers have been accustomed to dragging and dropping their visual interfaces to the
ASP. NET controls are called ASP. NET Server standard controls, when the use of controls, sometimes you will almost forget the existence of the html language. when a problem occurs, except the business logic, you may first think of whether a control
The following is the format of the data text file.
"#" Is a comment
"T:" Is join
"D:" is to delete the data in the table.
"C:" is to check data
Data and data are separated by tabs (data can be copied directly from the Enterprise Manager as a data
I noticed that there is an ASP tag. Is it used to mark a control?Yes. Its prefix is ASP's prefix. It indicates that this is an ASP control, and the latter part indicates that this is a server-side control, which is defined under the. NET Framework.
Import read: introduces ASP. NET, there is a small BUG: In WEBFORM. the XML control that appears in ASPX, where the transformsource attribute sets the path of the style table file, but this XSL file is not found in the source of the article. (Do it
Http://www.asp888.net bean curd technology station
We used to know the concept of function overloading in C ++. Now we can still use function overloading in ASp. Net C #.Concepts and Definitions:Suppose we define two functions in the program:
Step 1:Add "Add Crystal Report 9" to the Project menu of the VB Project. Use the default Report name. In this case, Form2 (the Form automatically added by Crystal Rerport, assuming the name is Form2) is automatically assigned the following
It is necessary to create a WEB program and easily develop skin and switch skin when few program codes are modified as much as possible. No one wants to change the skin, you need to change a large part of logic code.
The implementation of a
C # organize various types of programs through namespace. An assembly is a physical container of these types and contains specific implementation code. All C # Have a namespace and a global namespace.
In addition to the name, C # contains many types
The CLR Garbage Collector divides Objects Based on the occupied space. The processing methods for large and small objects are quite different. For example, memory fragmentation-the cost of moving large objects in the memory is expensive. Let's look
When C ++ code is compiled under. NET, "error C4430: The type specifier is missing-it is assumed to be int. Note: C ++ does not support the default int "error.
After investigation, I found that the sequence of reference header files may be wrong. I
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