C#

private void Btnfile_click (object sender, EventArgs e) {OpenFileDialog FileDialog = new OpenFileDialog (); Filedialog.mult iselect = true; Filedialog.title = "Please select File"; Filedialog.filter= "All Documents (*. *) |*.*"; if

Spire.doc, spire.doc generates the table First of all, I would like to thank Jack for his trust in me. Let me write an evaluation. I am sorry for Jack, because I am dull and have been nervous about my projects recently, the evaluation task has been

Static constructor, java static Constructor Let's take a look at a common question. What is the execution result of the following code? class A { public static int X = B.Y + 1; static void Main(string[] args) {

Brief descriptions of classes and objects, brief descriptions of class objects First, open your mind     I. Based on the trend of Mind Map, there are four small points between classes and objects. First, let's talk about the relationship between

C # compile a review of the automatic shutdown ProgramFirst, the first element of a program is that you can set the program ICON in the settings of the logo and set it in the ICON. The ICON can be downloaded from the Internet. These are the Button

Dapper Study Notes (3)-add, delete, modify, and query dapper Study Notes I. Create a table Create the following three tables in the database: 1 CREATE TABLE [dbo].[T_User] 2 ( 3 [UserId] [int] IDENTITY(1, 1) PRIMARY KEY NOT NULL, 4

C # class method declaration where _ gift of zookeeper,The where clause is used to specify type constraints. These constraints can be used as variables for type parameters defined in generic declarations.1. Interface constraints.For example, you can

Use the. net Chart control to draw a graph. netchart During software development, we may encounter situations where charts need to be generated. NET is often used to draw with GDI, although the effect is good, since. NET 4.0, the Chart control

Writing high-quality code to improve the C # program's 157 suggestions-recommendation 57: the sub-type implementing ISerializable should be responsible for serialization of the parent class, Recommendation 57: the sub-type implementing ISerializable

C # Call The SSIS package and read the DataReader target, C # Two DLL files must be referenced when the SSIS package is called. (The specific location is searched on drive C. The paths provided by MSDN and Baidu are not correct) Microsoft.

Wait until all or any asynchronous tasks are completed, and the processing scheme for asynchronous tasks to be completed.   This article describes how to wait for all asynchronous tasks to complete, wait for any asynchronous task to complete, and

Use implicit keywords for implicit conversion of custom types, implicit keywords In C #, the implicit keyword can be used for implicit conversion of custom types. The following is an example. First define a Point class to indicate a Point:

Thread signal mechanism and thread signal Mechanism From: http://www.cnblogs.com/willick/p/4177977.html for reference only Sometimes you need a thread to start executing when it receives a signal. Otherwise, the thread is in the waiting state. This

Standard event mode and standard Event Mode From http://www.cnblogs.com/willick/p/4102174.html, only for reference The. NET Framework defines a standard mode for event programming to ensure consistency between the. NET Framework and user code.

C # _ Stopwatch class, Namespace:System. Diagnostics StopwatchAn instance can measure the running time at one interval or the total running time at multiple intervals. In the typicalStopwatchIn the solution, first call the Start method, then call

[C #] About asynchronous programming async await, The reason for the need for Asynchronization is that Asynchronization is critical to activities that may block (for example, when an application accesses the Web. Access to Web resources is sometimes

C # syntax sugar: ReflectionSugar generic reflection class, Easy to use: ReflectionSugar rs = new ReflectionSugar (100); // cache for 100 seconds. If this parameter is left blank, the cache is not cached by default. Rs. Why?   Performance

Nhibbench series Learning (2)-use SQL, hql, and linq, nhibernatehql 1. This article mainly introduces three kinds of NH query methods 2. view the interface Namespace KimismeDemo {public partial class Form2: Form {private ISession session; private

. Net XML creation 02 (linqToXml), xmllinqtoxml LinqToXml is flexible and convenient. It is based on functional programming.The specific usage is as follows:Reference assembly using System. Xml. Linq; 1. Create an XDocument and set the Document

Asp.net image quality compression (without changing the size ), Private static ImageCodecInfo GetEncoderInfo (String mimeType){Int j;ImageCodecInfo [] encoders;Encoders = ImageCodecInfo. GetImageEncoders ();For (j = 0; j {If (encoders [j]. MimeType =