C++

Note: The trace class is used as an example, but the debug class is also common.   Trace. Listeners is a system. Diagnostics. defaulttracelistener type by default. This type of listener will pop up a dialog box during assertion, as shown

Formatterservice (in system. runtime. in the serialization namespace), The getuninitializedobject method is. methods used by CLR initialization objects in. Net deserialization (as we all know, constructors of objects in deserialization are not

The trick is to use the groupby method of LINQ, and then use the Count attribute of the returned result igrouping interface to determine whether it is a repeated element. Code: // Repeated elements: 3, 4, 5 // Unique elements:, 9 int []

Previous ArticleArticle:. Net (C #) platform call: dllimportattribute. charset and character string sending encoding. This section describes the relationships between the character string and dllimportattribute. charset during platform call. In fact,

The value and switchsettings attributes of the system. Diagnostics. Switch class are protected modifiers and can be set. Value is a string type, and switchsetting is an int type. The value of the switch class is the value attribute. After the value

For clickonce applicationsProgramYou can use activationcontext to activate the context. This class provides access to the Application List (application manifest. Appdomain. activationcontext can be used to obtain the activation context of the

In the previous articleArticle:. Net (C #): The signhash and verifyhash of RSA. I mentioned that using signhash and verifyhash of RSA can also achieve signdata and verifydata. In fact, there is also a method for signature authentication of public

Let's look at the output of a long number in. Net: // + Using system. Globalization; // + Using system. Threading;   // Change the current thread's cultureinfo to Chinese-China" Thread. currentthread. currentculture = cultureinfo. getcultureinfo

Note: To run the code, you must add a reference to system. configuration. Install. dll. The installation configuration class is in the system. configuration. Install namespace.   Transactedinstaller is like a transaction in a database. The whole

Using getcursorpos as an example, it returns the position of the current mouse pointer on the screen (with a point structure ). For definitions of getcursorpos and point, refer to msdn: Http://msdn.microsoft.com/en-us/library/ms648390 (V = vs.85).

As we all know, loading referenced assembly is not all loaded when the program starts running. CLR loads the corresponding Assembly for the first time when the type of the Assembly is used. More specifically, when a method is JIT, the CLR ensures

Study the differences between the three regular regexoptions enumerated values for matching rows, corresponding to none, singleline (single row) and Multiline (multi-row) enumerated values.   Conclusion: None :(.) match any character except \ n. ^

  Directory 1. Configure redirection for a single assembly 2. issuer policy assembly 3. Frequent version updates during development and testing     Returned directory1. Configure redirection for a single assembly When a single dependent

The streamingcontext type appears in many serialization methods. Getobjectdata of iserializable and special Constructor (used for deserialization ). There are also [ondeserialized], [ondeserializing], [onserialized], [onserializing] feature flag

We know that appdomain. processexit can monitor the exit of the current process, while the process. exited event can only monitor the exit of other processes. And it does not happen if the process is forced to end appdomain. processexit. To sum up

The trygetvalue method is very commonly used. You can convert the "judgment key existence" and "according to the key value" steps into one step. In this way, the hash value of the key is calculated only once, which is very efficient. Note that the

In fact, semaphore in. NET is an integer maintained by the operating system. When the integer is 0. Other threads cannot enter. When the integer is greater than 0, the thread can enter. Every time a thread enters, the integer is-1, and the integer

There is a range attribute in the HTTP request header information that can be used to request files in some HTTP requests. In. net, the range of data is defined using the httpwebrequest. addrange method. After an HTTP request with the range

The data size in a computer is generally measured in bytes. The data type is usually long and is converted to a readable unit string. For example, 1 kb is displayed in 1024 bytes. 1024*1024 bytes, 1 MB ......   Google searched for half a day and

Concurrentbag is very fast for adding and deleting the same thread value, because concurrentbag stores data independently based on the thread ID, therefore, it is very fast for a thread to remove data from its own data. Of course, if there is no