C#

// Filter HTML codePublic string checkStr (string html){System. text. regularExpressions. regex regex1 = new System. text. regularExpressions. regex (@ " tagsHtml = regex2.Replace (html, ""); // filter href = javascript: () attributesHtml =

Two concepts were proposed before the start: time complexity and space complexity. Time Complexity refers to the correspondence between the running time of the algorithm and the problem scale.Time complexity is represented by T (n) = 0 (f (n). 0

When the database is asynchronously read, some problems may occur during data binding, that is, the form interface cannot be closed, and the process can only be ended after the task is completed. For example, the following code First, set the thread

I accidentally read some new features of 4.0 today. I am very interested in the ExpandoObject class in the SystemDynamic namespace. I have read an English article to share with you. First, let's look at the members of this

The following code is for reference only. If you are interested, you can study it. [1] simple data synchronization between mobile phones and servers /// /// First pass the parameter (strImei, strCode) to the server, and then download

We often need to randomly generate a group of non-repeated questions when performing an exam system that can automatically generate the exam. net Framework provides a class System dedicated to generating random numbers. random.As we all know about

Record-learning C # documents are mostly reprinted for future reference.C # typical File OperationsC # append an objectStreamWriter sw = File. AppendText (Server. MapPath (".") + "\ myText.txt ");Sw. WriteLine ("Chasing ideals ");Sw. WriteLine

As far as I know, the default keyword can be used in C #. One is used in the Switch statement, and the other is used in the generic type. The two methods are as follows: 1. In the switch statement, if no case expression matches the switch value, the

Code: MySqlConnection con = null;MySqlCommand cmd = null;String nameStr = "Sample value passed "";Con = new MySqlConnection ("server = localhost; database = db_name; uid = user; pwd = password; pooling = false ;");Con. Open ();Cmd = new MySqlCommand

Q & A follows S1 C #: Labels: 1. = what is the difference between Equals and Equals? For Value Type: Because the value type is stored in the stack, both of them compare whether the values of two variables in the stack are equal. For reference type:

1. Special attributes in asp. Net:Get server computer name: page. server. manchinenameGet user information: page. userObtain the client computer name: page. request. userhostnameObtain the Client ip Address: page. request. userhostaddress2. General

When calling a stored procedure, two conditions are involved: one is execution without the need to return values, such as deletion or modification; the other is execution and requires a return value, such as a query. When calling a stored procedure

In. NET Framework 2.0, there are two ways to implement a thread call method with parameters.First, use ParameterizedThreadStart.When the System. Threading. Thread. Start (System. Object) overload method is called, the objects containing data are

Using System;Using System. Collections;Using System. Text;Using System. Runtime. InteropServices;Using System. Drawing; Namespace TOA. Common{ ///  /// Summary of GetIcon. ///  Public class ShellImages {   # Region DLLIMPORT  // Retrieves

1. Before "Out", "params" and "ref", the most commonly used parameter passing by value is recorded. Of course, by default, the default behavior of parameter passing in to the function is also passed by value. 1: // by default, parameters are passed

Normally, when the parent window is activated, the Child Window will lose the focus. Similarly, when the child window is activated, the parent window will also lose the focus, which is not very nice in some cases, for example, when a child window

Two usage methods: 1. Add the regular expression verification control Regularexpression_r_rValidator to the text input box. This method is applicable to WebForm.In the Validationexpression_r_r option, enter the verification rule.In the

The Code is as follows (Put It In Form_Load ): Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->If (InputLanguage. DefaultInputLanguage. LayoutName. IndexOf ("Keyboard") =-1 & InputLanguage.

Code 1: Use System. Web. UI. HtmlControls. HtmlInputFile to select the handle file. The code in the button click event is used to read the file content after the file is selected. 　 1　　　　　　System.Web.HttpPostedFile input =

Dynamic DLL loading requires the use of Windows API functions: LoadLibrary, GetProcAddress, and FreeLibrary. We can use these three functions in C # using DllImport.[DllImport ("Kernel32")]Public static extern int GetProcAddress (int handle, String