how to net programming

When I use the Visual_Studio_2005_Professional programming statement, the font is too small. I want to change the font. But when I show the tool_option_color font, an error is reported; I clicked "yes". After that, no matter how I modified the font,

I have developed a wnform program to load some information such as images, audios, and audios (audios and audios are all controlled by directx). However, after I turn off the form, the memory is not released much. For example, when the form is

Programming LanguageIntegration: COM allows different programming languages for interoperability .. . NET framework allows language integration. In this way, we can freely use the types of other languages and feel like our own. For example, with

One CSProgram. Only one data is connected. Therefore, the connection is the same. The sqlconnection variable must be constantly closed.The thread pool does not close this object. It is also found from the data pool.What is the difference between

I have shown a picture in picturebox. The sizemode of picturebox is set to zoom. The size of picturebox is 800*600, and the size of the image is 2848*4256. That is to say, the image I want to display is much larger than picturebox. I move the mouse

An error occurred while editing the control interface.The axmicrosoft. Office. InterOP. owc11.axspreadsheet control throws an unhandled exception in the designer.Try to read or write the protected memory. This usually means that other memory is

After studying the problem for one afternoon, I finally found the answer from some online materials because the data source for manual programming is not maintained in viewstate. Once PostBack is triggered, the content of the data source is lost.

Chapter 7 Exception HandlingCommon Language Runtime (CLR) has a major advantage in that exception handling is cross-language standardized. An exception thrown in C # can be handled in Visual Basic. There are no HRESULTs or ISupportErrorInfo

Basic concepts of Attribute Some people often ask, what is Attribute? What is its use? It seems that this program can run without it. In fact. in Net, Attribute is a very important component. In order to help you understand and master Attribute and

1, DateTime Digital type The following is a reference fragment: System.DateTime currenttime=new System.DateTime (); 1.1 to take the current month and day time currenttime=system.datetime.now seconds; 1.2 Take the current year int year

After a hard study of the problem in the afternoon, finally some information from the Internet to find the answer, the reason should be manual programming data source in the ViewState did not maintain the problem, once caused postback, the content

Lazy_allocate (slow allocation) It allows the object to save some memory costs public class MyClass{Private DataSet _ds;Public DataSet DS{Get{if (_ds==null)//If no instance is created, create a new{_ds=new DataSet ();}return _ds;}}} Static Helper

In fact, the expression is full of our programming world, from the lowest compiler to compile parsing, to the top of the string processing, are regular expressions. We value it! I used to think of regular expressions as a tool for validation, or

Asp. NET is based on Microsoft's new generation of. NET platform architecture, using the normal language runtime (Common Language Runtime) to provide users with a strong enterprise-class Web Application service programming framework at the back end

Programming with previous bindings Visual Basic 6.0 and Visual Basic.NET both support deferred binding of objects. The method defines a variable to be an object data type beforehand and then sets it to a class at run time. However, during the

Programming | control | Statement SIXTH Chapter CONTROL statement There is a statement that you can find in each programming language control flow statement. In this chapter, I introduce C # 's control statements, which are divided into two main

Programming Chapter Fourth C # types Now that you know how to create a simple C # program, I'll introduce you to C # 's type system. In this chapter, you learn how to use different values and reference types, what the box and frame mechanism can do

Programming | Procedure Chapter III FIRST C # application 3.0 Select an editor Although I am a stubborn notepad, but this time I do not recommend using it to edit the source code. The reason is that you are dealing with a real programming language,

1, DateTime Digital typeSystem.DateTime currenttime=new System.DateTime ();1.1 to take the current month and the day secondsCurrenttime=system.datetime.now;1.2 Take as the year before lastint year =currenttime.year;1.3 Take the current monthint

Programming starts with this chapter, and we'll show you visual Basic with a series of lectures. NET's unique charm and the basic way to use it to develop applications. Visual Basic. NET is a development language developed by Microsoft in 2002,