c sharp ide

How to delete a file (folder) in C Sharp (C #) Delete directly:Using System.IO; .. String FilePath = @ "D:/.../xxx.xxx"; if (file.exists (FilePath)) {file.delete (filePath);} else {Console.WriteLine ("File not exist."); Console.ReadLine (); } Delete to Recycle Bin:Using System.Runtime.InteropServices; Namespace CSharp {Class Program {private Const int fo_delete = 3; Private Const int fof_allowundo = 0x40; Private Const int fof_noconfirmation = 0x0010

C # (C sharp ) The conversion of strings and times. One, datetime–> string The time type is converted to a string type, which is fairly simple, and calls the ToString () method directly. Such as: DateTime dt = DateTime.Now; String dtstr = dt. ToString (); If you want to format the output, you can write this: Dt. ToString ("YYYY year mm month DD Day"); November 5, 2005Dt. ToString ("Yyyy-mm-dd"); 2005-11-5 String. Format ("{0:d}", DT); 2005-11-5Stri

Data Warehouse and data mining--a sharp weapon to participate in the competition of digital telecommunication enterprises The solution of Guangdong Telecom Data Warehouse based on Sybase Guangdong Institute of Telecommunication Science and technology 1 overview With the opening of the telecom market, the competition will be more and more fierce. The reduction of profit makes it necessary to change from extensive operation to intensive operation, wh

The importance of the channel is needless to say, the U.S. PS experts said: "The channel is the core, the mask is the soul", enough to explain the channel in Photoshop important position. Related tutorials: 1, Photoshop Channel Application Series 1: What's in the channel 2, Photoshop Channel Application Series 2: Channel is a constituency 3, Photoshop Channel Application Series 3: Use Lab lightness channel to convert black and white 4, Photoshop Channel Application Series 4: How to choose t

framework "ROWS between unbounded precedingand current row" is used without specifying the framework, which results in the last line being the Current row, so even if you use the last_value function, you won't get the last line of the window.Here is an example of how these two functions are used. The following query uses the first_value function to return the employee's sales for the first quarter of the year, using the last_value function to return sales for the last quarter of the year. The q

Use native javascript to create common form verification-more sharp use of dom objects, learn javascript friends can refer. First, let's take a look at the effect. Nothing special! The called code is quite simple. You do not need to create other labels or span labels. The script will automatically generate the following code: The Code is as follows: Next, let's take a look at the checkResult function. The checkCondition parameter indicates the j

Sharp jQuery Reading Notes --- Ajax in jQuery -- load method, jquery --- jquery The first Ajax example Content of test. jsp: Ajax in jQuery 1. load () The load () method is the most simple and commonly used Ajax method in jQuery. It can remotely load HTML code and insert it into the DOM. Remote HTML code: Load () load HTML Load () load filtered HTML documents Load () method --- callback function

Reveal is a great tool for analyzing the app UI and is handy for viewing any UI layoutI. Simulator for analysis1. Open reveal (http://revealapp.com download)2. Open Xcode3.reveal--help--show Reveal Library in Finder　　　　　　4.xcode--importing reveal.framework into the current project　　　　　　5. In the project setup, add-objc-framework Reveal in the other Linker flags item6. After running the current project, open reveal, select the current running program to associate　　　　　　7. Once the connection is su

Original: some small Tips of Enum in C sharp, sharpenum (1) Why use Enum? ♥Enums enumeration is a value type. Data is directly stored in the stack, instead of being stored using reference and real data isolation.Enum student {a, B, c, d, e}. enum indicates that student is an enumeration type. enum belongs to the value type and does not belong to the reference type.That is to say, a = 0, B = 1, c = 2, d = 3, e = 4,When student. a uses this enumeration,

Sharp jQuery 2nd learning notes Chapter 6 and Chapter 7, jquery learning notes Chapter 7Chapter 2, ajax Advantages and Disadvantages of jQuery and Ajax applications 1. No plug-in support 2. Excellent user experience 3. Improved Web program performance 4. reduced load on servers and bandwidth lack of Ajax 1. Lack of support for XMLHttpRequest objects by the browser 2. Destruction of normal functions of the browser forward and backward buttons 3. Lack o

Sharp jquery-DOM operations, jquery-dom1. Search nodes ① you can search Nodes Based on the jquery selector ② available. text () to get the text content of the node ③ available. attr ("attr") obtains the attribute value2 to create a node. ① The jquery factory function can be used to complete $ (html) eg: $ ("

filteringBasic Filtration:: first selects the initial element such as $ ("Div:first") and selects the first one in all Div: Last element selected: Not (selector) removes all elements that match a given selector: Even all elements with an even number selected index starting from 0: odd Odd line: EQ (index) selects an element that is equal to index: The GT index is greater than index: LT (index) index is smaller than index: Header selects all header elements such as H1~h6: Animated Select the ele

1, $ (document). The difference between the ready () method and the Window.onload method$ (document). Ready (function(){ //Code })//Shorthand//$ (function () {////Code// });window.onload=function(){ //Code }//equivalent to//$ (window). Load (function () {////Code// })① execution Time: The former can be called when the DOM is fully ready, which is executed when all the elements in the Web page (including all associated files of the element) are fully loaded into the brow

* * * * Serializearray () method * This method does not return a string, but instead serializes the DOM element. Returns data in JSON format. * * * * $.param () method. It is the core of the Serialize () method, which is used to serialize an array or an object according to Key/value. * * For example: * var obj = {a:1, b:2, c:3}; * var k = $.param (obj); * Alert (k);//Output a=1b=2c=3 * **/ })Script>HTML>Ajax Global Events: Method name Desc

There are a few people who know the absolutely sharp linux tips-general Linux technology-Linux technology and application information. The following is a detailed description. Yes. In fact, this thing was discovered a long time ago, but now I am sending it out to see a few people who know other releases. I don't know. I am using Ubuntu. You need to use the mouse arrow to select the text you want to copy, and then you don't need to perform any operati

.serializeArray ()Instead of returning a string, the method returns the JSON format after serializing the DOM element.var f = $ (": CheckBox,: Radio"). Serializearray (); // get the value of the Console.log box and the Radio box (f); // viewing in the console$.each function (I, field) { //f is an object that can be traversed by the $.each method$ ("$result"). Append (Field.value + ",");})3.$.param ()He is the core of the Serialize () method, which is used to serialize arrays and objects in th

(){ /*The function inside the anonymous function can access Foo, even if the bar function is called outside of the anonymous function, it can be accessed inside bar (), but it cannot be accessed directly outside of the anonymous function .*/ } /*the functions below allow the function bar () inside the anonymous function to escape to the globally accessible range so that the internally defined function bar () can be accessed outside of the anonymous function, and the internal fun

Rewrite the example summarized in chapter 3 of sharp jQuery The Code is as follows: Script Var x = 10; Var y = 10; $ ("A. tooltip"). mouseover (function (e ){ This. myTitle = this. title; This. title = ""; This. imgTitle = this. myTitle? This. myTitle: "No title "; Var tooltip =" "+ This. imgTitle +" " $ ("Body"). append (tooltip ); $ ("# Tooltip" ).css ({ "Top": + (e. pageY + y) + "px ", "Left": + (e. pageX + x) + "px"

Selector3.2. Content Filter SelectorThe filtering rules of the Content filter selector are mainly embodied in the sub-elements or text content that it contains.3.3. Visibility Filter SelectorThe visibility selector selects the appropriate element based on the visible and invisible state of the element.In the visibility selector, you need to be aware of the selector: hidden, which not only includes elements that have the Style property display as "None", but also elements such as text-hidden fie

Recently, when developing a winform system, we used a large number of Custom User Controls, fully applied object-oriented methods, and used domain-driven design and development methods. In the early stage of this method, a large number of Custom User Controls were developed. As a result, these controls were placed on the form when running, and flickering was found on the switching interface. The more controls, the more powerful the flickering. After searching for a long time, I finally found thi