[Introduction]
Aspect-oriented programming (AOP) is a programming paradigm invented by Xerox PARC in the 1990s s of the Xerox Corporation, it allows developers to better separate tasks that shouldn't be entangled with each other (such as
Take a simple example as an example: after obtaining a able from the database for the first time, I found that some data in the datatable is also required in another part of the processing process, for example, if you want to read the first 10
【C # Introspection]
1. Obtain type based on string. The type. GetType method obtains the type with the specified name and performs a case-sensitive search.
2. Obtain type based on OBJ. Object. GetType method to obtain the type of the current
The restructuring of the data room charging system is nothing more than adding, deleting, modifying, and querying four database operations. In addition, we use a three-tier architecture for reconstruction, and layer D is used to deal with databases.
Http://www.cnblogs.com/salam/archive/2010/07/14/1777215.html
Xmlns = "http://schemas.microsoft.com/winfx/2006/xaml/presentation"Xmlns: x = "http://schemas.microsoft.com/winfx/2006/xaml"Xmlns: D = "http://schemas.microsoft.com/expression/blend/200
The purpose of the Creation Mode is to solve the separation of use and production responsibility. Of course, the premise that this mode can be usedThat is, the user does not care about the creation logic and process of the "product ".,You only need
The datagridview datagriuses many controls, but does not have the aggregate row function at the bottom. It is used in many places during a small project. The following method is used to implement this function:
Set the following
# Region: four
The VBA method can call the C # object method through COM InterOP. The basic method is to expose the. NET object through COM InterOP, and then you can call the. NET object method and pass the parameter. However, if the parameter contains a double
The contentprovider class has two methods that can return the MIME type:
GetType ()
You must provide one of the necessary methods for implementation.
Getstreamtypes ()
If your provider provides files, you are expected to implement this method.
Mime
Dataset and datatable can be used to export data to: http://www.cnblogs.com/pauline/archive/2011/04/11/2012593.html# :paine
Each dataset is a collection of one or more able objects (datatable is equivalent to a table in the database). These objects
Link to this article: prototype mode and various factory modes, as well as reflection
The various factory and prototype modes are not described in detail. There is only one small example.
The difference between the prototype and the factory mode
To describe the problem clearly, let's look at an example first. In this example, WinForm has a button that, when clicked on by the user, loads an already existing assembly and displays the Assembly fullname on the label control of the interface. To
The following is a detailed analysis of common functions in PHP. For more information, see array_change_key_case. the returned string key names are all lowercase or upper-case arrays.
Array_chunk-divide an array into multiple
Array_combine-creates
Author: Chen Province
Recently, I learned how to use C # programming, because I used Delphi and found that C # class libraries are still not perfect (I used. net Framework 1.0. I don't know.. Net Framework 1.1). In addition, Visual Studio 2002 is
1. Delegate is type-safe, that is, errors can be detected during compilation; similar Reflection is type-insecure.
Delegate is a pointer to the method address and does not distinguish static and instance methods.
Delegate is defined outside the
The design pattern can make our code more flexible, easier to expand, and easier to maintain. Various Object-Oriented Programming Languages provide basically the same mechanism, such as classes, inheritance, derivation, and polymorphism. However,
View Code
1 # region enumeration public conversion class 2 public class EnumDescConverter: System. componentModel. enumConverter 3 {4 protected System. type m_MyVal; 5 public static string GetEnumDescription (Enum value) 6 {7 FieldInfo fi = value.
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