C#

Use Visual Studio 2005 to create Class Libtary of C # and copy the following code.[Csharp] view plaincopyprint?// Class1.cs// A simple managed DLL that contains a method to add two numbers.Using System; Namespace ManagedDLL{// Interface

In WebClient, events such as DownloadProgressChangedEventHandler can respond to the progress of http requests (or other web requests.In c #5.0, all HttpClient functions exist as Task asynchronous functions. No event can be called back to display the

After searching the Internet for half a day, there is no straightforward method, either it is slow or it is terrible slow. by thinking about it, you can finally get the structure of the Word document quickly. Take a shower, (* ^__^ *), and you will

When I first added the verification code function to the logon page, I wrote the verification code in the background code on the logon page. Only the verification code is displayed and nothing else is displayed. The verification code is to be

[Csharp]String url = string. Format ("Http://bms.hichina.com/sms_gateway/sms_api? "+ "User_id = {0} & password = {1} & mobile_phone = {2 }"+ "& Msg = {3} & send_date = {4} & subCode = {5 }", String. Empty // user ID, String. Empty // Password,

This article describes two generic parameter modifiers, in and out. The author does not understand these two keywords. To learn to use these two keywords, you must first understand the concepts of covariant and inverter. The simple definition of

[Csharp] // phone book class Person. cs using System; using System. collections. generic; using System. linq; using System. text; namespace simple phone book {class Person {string name; // Name string phone; // call public string name {set {name =

[Csharp] view plaincopyprint?Using System;Using System. Collections;Using System. Collections. Generic;Using System. Linq;Using System. Text;Using System. Threading. Tasks; Namespace MyCollection{Class Program{Static void Main (string []

I tried to help others complete their work, but I still don't know the C # language. Well, after a long time, I finally finished it for him. Writing a blog today is not just about this, but about it with caution. For example, how to extract multiple

Yesterday, you need to write a program to delete the log file in c. For example, a program of mine needs to have a log. I write the log to the log file, and I automatically create a log file every month. This log file is named like "xxx04.log",

When you add the compiled. chm Help file (which can be made with EasyCHM,: http://download.csdn.net/detail/xiaoyaofriend/4501571) to a program written in C #, you need to call the ShowHelp and ShowHelpIndex static methods of the Help class. The

Use try and catch statements to handle exceptions [Csharp]Using System;Using System. Collections. Generic;Using System. Linq;Using System. Text;Using System. Windows;Using System. Windows. Controls;Using System. Windows. Data;Using System. Windows.

/* (Start of program header annotation)* Copyright and version Declaration of the program* Copyright (c) 2011, a student from the computer College of Yantai University* All rights reserved.* File name: compile a console application. Use the for,

C # is often used when writing BS code these days, and a simple summary of the C # data type is provided. This article describes the implicit conversion of C #, display conversion, parse, Tostring, and Convert conversion. Implicit conversionWhen

Macro definition occurs in the pre-compilation phase. Simply put, the essence is text replacement. Note the following when using it: 1. Complete brackets must be used when macro expressions are used. For example, the following three examples: #

C # how to add a background image to a dynamically generated button in WINFORMBelow I provide several methodsFirst, use the Properties. Resources class. This method requires you to add images to the project in advance,The method is as follows:  

Recently, when exporting excel files in. net, the customer needs to print out the symbols with the box and the box with the check box. There are countless questions online and there is no result. Later, the problem was solved using

[Csharp]Using System;Using System. Collections;Using System. Collections. Generic;Using System. Linq;Using System. Text;Using System. Text. RegularExpressions; Simple namespace expression{Class Program{Static void Main (string [] args){Stack numbs =

Print? For (int I = 0; I {For (int j = 1, k = 0; j {If (dgvStudent. Columns [j]. Visible){DimArray [I + 1, k] = dgvStudent. Rows [I]. Cells [j]. Value. ToString ();K ++;}}} For (int I = 0; I {For (int j = 1, k = 0; j {If (dgvStudent. Columns [j].

/* Author: Jiangong SUN */ Reflection provides objects (of type Type) that encapsulate assemblies, modules and types. you can use reflection to dynamically create an instance of a type, bind the type to an existing object, or get the type from an