C # simple log Writing Method

Private void WriteLog (string text){ String path = AppDomain. CurrentDomain. BaseDirectory;Path = System. IO. Path. Combine (path, "OutputStreamLogs \" + DateTime. Now. ToString ("yy-MM-dd ")); If (! System. IO. Directory. Exists (path )){System. IO.

C # Learning 1

First, write all the helloworld codes. The code is very short. [Csharp]Namespace helloworld{Class Program{Static void Main (string [] args){Console. WriteLine ("Hello World! "); // Write the specified string value (followed by the current line

Obtain serial data (C #)

2. as follows   3. key code[Csharp]Private void buttonOpenClose_Click (object sender, EventArgs e){Try{Labmsg. Text = "";// Judge the operation based on the current serial port objectIf (comm. IsOpen){// Close the serial port when you click it.Comm.

C # Call WinAPI to send SendMessage

Call methods in DLL First, the external method should be declared in the C # language source program. The basic form is:[DLLImport ("DLL file")] Modifier extern return variable type method name (parameter list)[DllImport ("user32.dll", EntryPoint =

C # Implementation of Calling c ++ methods with callback Functions

In c ++, there is a callback function pointer concept. You only need to input a function pointer when a function calls a timer function, but C # does not have the function pointer concept, how can we implement it.Actually speaking of callback

Fold the code that processes file. ashx in general (# region)

Note: This method is used for website projects. However, it can be used as a reference for other types of projects. 1. Create a New ashx file, such as/System/xxx. ashx, where you want to be accessed by others. Create xxx. the ashx code is as follows:

C # initial knowledge

1. NET Framework includes three parts: The first part is the Common Language Runtime (CLR, all. NET program language common execution period component), the second part is the shared object category Library (provide all. NET program language), the

C # file operations-delete Multiple folders

Problem: A root folder contains multi-level directories. Multiple subfolders exist at each level, and multiple files exist in each folder. If you want to delete all the sub-files and save the top-level directory folder, how can this problem be

Simple factory Mode

UML class diagram:     Sample Code: [Csharp]// Base classPublic abstract class Animal{Public string Name {get; set ;}Public abstract void Run ();}// Subclass 1Public class Chicken: Animal{Public override void Run (){Console. WriteLine ("Chicken was

Uploadify + C # instance

When we put it in our system, there are several points to change: 1: uploadify.css Because the background of the button style he canceled is by default.../img /... So we need to change it based on your needs. . Uploadify-queue-item. cancel

Hdu1201 (from 18 years old after how many days)

[Csharp]# Include Int main (){Int y, m, d, sum, t, I;Scanf ("% d", & t );While (t --){Scanf ("% d-% d", & y, & m, & d );Sum = 0;If (m = 2 & d = 29) // This day has no birthday{Printf ("-1 \ n ");}Else{For (I = y; I If (I = y & m Sum ++;Else if (I =

Paip. c # image Cropping

Paip. c # image Cropping PictureBox1.Image = fig. CutForCustomx (@ "d: \ img.jpg", 100,300 );PictureBox1.Image. Save (@ "d: \ img2.jpg ");     Public static Image CutForCustomx (string imgPath, int top, int height){ FileStream fs = new FileStream

C # Learning 5

Create a WPF file, select two dates, use the if and else statements, and determine the size of the two dates [Csharp]Using System;Using System. Collections. Generic;Using System. Linq;Using System. Text;Using System. Windows;Using System. Windows.

C # delete a single file or folder (permission modification)

The first technical blog after work abstracts some small technologies and records them. Directly use File. Delete to Delete a single File; To delete subfolders and subfolders in a folder, use FileInfo and DirectoryInfo. Delete the subfolders in the

Hdu 1715 large number of waves (large number)

[Csharp]// Large number calculation !!# Include "stdio. h"# Include "string. h"Int a [1001] [1001];Int main (){Int I, j, k;Int n, t;Int carry;Scanf ("% d", & t );While (t --){Scanf ("% d", & n );Memset (a, 0, sizeof ());A [1] [1] = 1; a [2] [1] =

Display the One-fix, modify, and charge icon of the Silverlight converter Application

To complete a change to the record sorting order in the project, you must bind it to the DataGrid template column. The effect is shown in figure   The logo of the first line and the logo of the last line should be hidden and should be as effective  

C # CookieHelper -- C # Help class for Cookie operations

The following is the code. [Csharp]// /// Class description: CookieHelper/// Contact information: 361983679// Update the website: http://www.cckan.net/thread-655-1-1.html /// Using System;Using System. Web;Namespace DotNet. Utilities{Public class

WPF: popup implementation drop-down list

An error occurs when it is used for the user. The selected option has a shadow, which affects the display of the interface.When solving the problem, we always think it is a problem of re-painting and refreshing the interface. So I also found some

It is difficult to manually or programmatically call the https WCF Service signed by X.509 certificate

When you use add service reference in visual studio to call an https WCF Service with only X.509 certificate Signature, visual studio automatically generates code and apps. config or web. the config xml code is easy to call based on these

C # method for generating static pages

C # method for generating static pages: C # method for generating static pages private bool CreateHl (string strtext, string strcontent, string author) {string yearstring = DateTime. now. year. toString (); string monthstring = DateTime. now. month.

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