if directory exists

Environment Common methods:* Method: Getdatadirectory ()Explanation: Return File to get the Android data directory.* Method: Getdownloadcachedirectory ()Explanation: Return File to get the Android download/cache content directory.* Method:

C # operations on files and folders (copy, delete, add, and set read-only)-Technology & sharing Using System; using System. IO; using System. Windows; using System. Windows. Events; using System. Xml; namespace WorkItemCreateBussiness. HzClass

/// /// Folder operation class/// Public class DirOption{/// /// Whether to delete/// Public enum OperateOption{// DeleteExistDelete,// Do not deleteExistReturn}/// /// Create a directory/// /// full directory path /// whether to delete

Using System;Using System. Web;Using System. Web. UI;Using System. IO;Using System. Drawing;Using System. Drawing. Imaging;Using System. Drawing. Drawing2D; Namespace webdb. classes{/// /// Summary of UploadFile./// Public class UploadFile{Public

Public void rarsave (string rarpatch, string rarfiles, string patch, string rarname){String the_rar;Registrykey the_reg;Object the_obj;String the_info;Processstartinfo the_startinfo;Process the_process;Try{The_reg = registry. classesroot. opensubkey

  Windows service can regularly capture the client's screen and send it to the specified mailbox. (Refer to some online Code. There is no problem in testing on the XP system)   Public partial class Service1: ServiceBase { Static DateTime

C # Use Log4Net to record logs (advanced) The content in the configuration file log4net_config.xml is as follows:   -->

Complete uploadify batch file upload plug-in, uploadify uploads files 1. First, prepare the uploadify js file. 2. upload page UpFilePage. aspx Key code: upload a file   The GetFile () method in the background: /// /// Obtain cookie Attachment

Private void copyfile (string source, string destination){Bool flag = true;If (! Directory. exists (destination) & flag = true){Directory. createdirectory (destination );Flag = false;}Directoryinfo rootdir = new directoryinfo (source ); // Traverse

Application scenarios The document administrator can upload attachments to users when sending documents. As a common user, the administrator needs to download the documents sent to the company in batches, you must be able to download the company's

Using System; Using System. Collections. Generic; Using System. ComponentModel; Using System. Data; Using System. Drawing; Using System. Text; Using System. Windows. Forms; Using System. IO; Namespace aaa ...{   Public partial class Form1: Form ...{

WhenProgramAfter an asynchronous call is started, the caller thread must have a method to know the invocation status of the call and retrieve the execution result after the call is executed. You can use either of the following methods: I. Use

Copy codeThe Code is as follows: using System; Using System. Collections. Generic; Using System. Linq; Using System. Text; Using System. IO; Namespace WinFormsApp_OperateFileAndFolder { Public class OperateFileFolder { /// /// Create a folder ///

I/O Stream-oriented small resource manager and I/O Resource Manager I first came into contact with IO streams. I found some interesting things based on the knowledge in books and my own exploration. (The knowledge in books is more or less

Use ICSharpCode. SharpZipLib. dll in C # To Compress and decompress files/folders. ICSharpCode. SharpZipLib. dll 1. compress the logs in a specified directory, compress the logs to the CompressionDirectory folder, and clear the uncompressed logs. #

Call the JS photo upload API to upload images and js to upload photos. Public ActionResult UploadImge (string serverId) {var headPath = "/UploadImage/" + DateTime. now. toString ("yyyyMM"); string AbsoluteFilePath = Server. mapPath (headPath); if (!

Asp tutorial. net file batch upload and download code and detailed descriptionPrivate void DownLoadCompressFile (){// Create file packageList lists = new List ();If (DeluxeGridFiles. SelectedKeys. Count> 0){For (int I = 0; I {CompanyFileDomain

Public String getsqlfile (fileupload FP, int width, int height){String sqlfile = "";String tempsqlpath = "";String Path = httpcontext. Current. Request. physicalapplicationpath. tostring () + "upload /";Path + = "uploadfile/" + datetime. Now.

Using system;Using system. Collections. Generic;Using system. text;Using system. IO;Using icsharpcode. sharpziplib. checksums;Using icsharpcode. sharpziplib. Zip. compression;Using icsharpcode. sharpziplib. Zip. Compression. streams;Using

// Yang Chun// 2008-7-10// Delete all files in the specified directory to process the cached files generated by the pie chart column. Using system;Using system. Data;Using system. IO;Using system. Data. sqlclient; /// /// Summary of deletefile///