樓術描述項: (1).該項目中"我的電腦"是作者自定義的root節點,沒有設定其路徑,所以BeforeExpand事件中會從它開始依次遍歷,但"我的電腦"會提示"沒有指定路徑".故需要if(e.Tag.ToString() != "我的電腦")判斷.同時"我的文檔"需要再次獲取其路徑,依次實現Add子節點; (2).同時在"我的文檔"和盤符中需要添加tNode.Nodes.Add("")加載空節點形成+號,如果沒有該+號,BeforeExpend事件不會被調用,子目錄無法獲取加載,在BeforeExpand事件調用TreeViewItems.Add加載其子結點需要e.Nodes.Clear();清除該結點的子目錄再加載. (3).提供兩篇類似文章供大家學習,經過對比可以發現:第一篇僅從驅動器(C盤)開始加載,所以BeforeExpend簡單展開子目錄即可,不需要判斷"我的電腦"和"我的文檔".第二篇含"桌面",因此需要判斷路徑:"C# TreeView磁盤文件,AfterSelect顯示加號-駱駝祥子" 和"Treeview樹狀顯示文件夾" .同時補充一篇很優秀的文章供大家學習"WinForm應用:ListView做圖像瀏覽" (4).補充TreeView(樹視圖)事件:更詳細見"c# 樹狀視圖(TreeView類)". 事件 描述 AfterCheck 在選中節點復選框后引發 AfterCollapse 在折疊一個節點后引發 AfterExpand 在擴展一個節點后引發 AfterSelect 在選中一個節點后引發 BeforeCheck 在選中節點復選框之前引發 BeforeCollapse 在折疊一個節點之前引發 BeforeExpand 在擴展一個節點之前引發 BeforeSelect 在選中一個節點之前引發 (5).補充兩個關于論壇討論"c#怎樣動態讀取資源文件里的圖片"和"在C#中怎么調用Resources文件中的圖片" (6).在《C#典型模塊與項目實戰大全》(清華大學出版社-丁士鋒)書中談到,出于對程序響應性能考慮,它先加載盤符結點,沒有使用遞歸一次性加載所有文件到樹狀列表中,代碼通過AfterSelect事件和FileSystemWatcher控件,監聽加載.并使用線程池Task更新加載TreeView,希望大家去學習. 總結 該篇通過TreeView加載了磁盤目錄路徑,并通過ImageList加載圖標.那么怎樣實現閱讀文件夾下文件,獲取其圖標、文件大小、擴展名等信息,并雙擊打開文件呢?下一篇將接著講述.最后希望該文章對大家有所幫助,文章中很多鏈接都可以供覺得有用的同學學習,感謝上面提到的文章及書籍作者.同時如果文章中有錯誤或不足之處請原諒,有問題或建議者亦可提出.希望尊重作者勞動果實勿噴.
上傳時間: 2016-08-15
上傳用戶:baobao9437
The version of CodeWarrior used in the ARM Development Suite cannot export projects in makefile format. Manually producing makefiles from CodeWarrior projects is not an easy Task. The aim of mcp2make is to make the conversion simpler and to require substantially less effort. mcp2make is supplied as a free-of-charge, unsupported utility.
標簽: mcp2make
上傳時間: 2017-01-19
上傳用戶:zbxinu
C#遠控源代碼 * TCP network stream (IPv4 & IPv6 support) * Fast network serialization (NetSerializer) * Compressed (QuickLZ) & Encrypted (AES-128) communication * Multi-Threaded * UPnP Support * No-Ip.com Support * Visit Website (hidden & visible) * Show Messagebox * Task Manager * File Manager * Startup Manager * Remote Desktop * Remote Webcam * Remote Shell * Download & Execute * Upload & Execute * System Information * Computer Commands (Restart, Shutdown, Standby) * Keylogger (Unicode Support) * Reverse Proxy (SOCKS5) * Password Recovery (Common Browsers and FTP Clients) * Registry Editor
標簽: QuasarRAT
上傳時間: 2019-04-21
上傳用戶:netangels
The current methods of communications are becoming less relevant under today’s growing demand for and reliance on constant connectivity. Of decreasing relevance are the models of a single radio to perform a single Task. The expansion of wireless access points among coffee shops, airports, malls, and other public arenas is opening up opportunities for new services and applications.
上傳時間: 2020-05-26
上傳用戶:shancjb
The goal of this book is to introduce the simulation methods necessary to describe the behaviour of semiconductor devices during an electrostatic discharge (ESD). The challenge of this Task is the correct description of semiconductor devices under very high current density and high temperature transients. As it stands, the book can be no more than a snapshot and a summary of the research in this field during the past few years. The authors hope that the book will provide the basis for further development of simulation methods at this current frontier of device physics.
標簽: Development Protection ESD
上傳時間: 2020-06-05
上傳用戶:shancjb
Since the original publication of Manual 74 in 1991, and the preceding “Guidelines for Transmission Line Structural Loading” in 1984, the understanding of structural loadings on transmission line structures has broadened signifi cantly. However, improvements in computational capa- bility have enabled the transmission line engineer to more easily deter- mine structural loadings without properly understanding the parameters that affect these loads. Many seasoned professionals have expressed concern for the apparent lack of recent information on the topic of struc- tural loadings as new engineers enter this industry. The Committee on Electrical Transmission Structures is charged with the responsibility to report, evaluate, and provide loading requirements of transmission struc- tures. This Task committee was therefore formed to update and revise the 1991 manual.
標簽: Transmission Guidelines Electrical Line for
上傳時間: 2020-06-07
上傳用戶:shancjb
In order to enhance the efficiency and reliability of the power grid, diversify energy resources, improve power security, and reduce greenhouse gas emission, many countries have been putting great efforts in designing and constructing their smart grid(SG) infrastructures.Smart gridcommunicationsnetwork(SGCN) is oneof the key enabling technologies of the SG. However, a successful implementation of an efficient and cost-effective SGCN is a challenging Task
上傳時間: 2020-06-07
上傳用戶:shancjb
Identification is pervasive nowadays in daily life due to many complicated activities such as bank and library card reading, asset tracking, toll collecting, restricted access to sensitive data and procedures and target identification. This kind of Task can be realized by passwords, bio- metric data such as fingerprints, barcode, optical character recognition, smart cards and radar. Radiofrequencyidentification(RFID)isatechniquetoidentifyobjectsbyusingradiosystems. It is a contactless, usually short distance, wireless data transmission and reception technique for identification of objects. An RFID system consists of two components: the tag (also called transponder) and the reader (also called interrogator).
標簽: Processing Digital Signal RFID for
上傳時間: 2020-06-08
上傳用戶:shancjb
ABB機器人編程手冊.pdfAliasIO is used to define a signal of any type with an alias name or to use signals in builtin Task modules. Signals with alias names can be used for predefined generic programs, without any modification of the program before running in different robot installations. The instruction AliasIO must be run before any use of the actual signal. See Basic examples on page 21 for loaded modules, and More examples on page 22 for installed modules.
上傳時間: 2022-03-28
上傳用戶:kingwide