How to Use Delphi to Build a Custom Windows Explorer

Windows Explorer is what you use in the Windows operating system to browse for files and folders. You can create a similar structure with Delphi so that the same content is populated within your programs user interface. Common dialog boxes are used in Delphi to open and save a file in an application. If you want to use customized file managers and directory browsing dialogs, you have to deal with file system Delphi components. The Win 3.1 VCL palette group includes several components that allow you to build your own custom File Open or File Save dialog box: TFileListBox, TDirectoryListBox, TDriveComboBox, and TFilterComboBox. Navigating Files The file system components allow us to select a drive, see the hierarchical directory structure of a disk, and see the names of the files in a given directory. All of the file system components are designed to work together. For example, your code checks what the user has done to, say, a DriveComboBox and then passes this information on to a DirectoryListBox. The changes in DirectoryListBox are then passed to a FileListBox in which the user can select the file(s) needed. Designing the Dialog Form Start a new Delphi application and select the Win 3.1 tab of the Component palette. Then do the following: Place one TFileListBox, TDirectoryListBox, TDriveComboBox, and TFilterComboBox component on a form, keeping all of their default namesAdd one TEdit (named FileNameEdit) and one TLabel (call it DirLabel).Include a few labels with captions, like File Name, Directory, List Files of Type, and Drives. To show the currently selected path as a string in a DirLabel components caption, assign the Labels name to the DirectoryListBoxs DirLabel property. If you want to display the selected filename in an EditBox (FileNameEdit), you have to assign the Edit objects Name (FileNameEdit) to the FileListBoxs FileEdit property. More Lines of Code When you have all the file system components on the form, you just have to set the DirectoryListBox.Drive property and the FileListBox.Directory property in order for the components to communicate and show what the user wants to see. For example, when the user selects a new drive, Delphi activates the DriveComboBox OnChange event handler. Make it look like this:   procedure TForm1.DriveComboBox1Change(Sender: TObject) ;beginDirectoryListBox1.Drive : DriveComboBox1.Drive;end; This code changes the display in the DirectoryListBox by activating its OnChange event Handler:   procedure TForm1.DirectoryListBox1Change(Sender: TObject) ;beginFileListBox1.Directory : DirectoryListBox1.Directory;end; In order to see what file the user has selected, you need to use the OnDblClick event of the FileListBox:   procedure TForm1.FileListBox1DblClick(Sender: TObject) ;beginShowmessage(Selected: FileListBox1.FileName) ;end; Remember that the Windows convention is to have a double-click choose the file, not a single click. This is important when you work with a FileListBox because using an arrow key to move through a FileListBox would call any OnClick handler that you have written. Filtering the Display Use a FilterComboBox to control the type of files that are displayed in a FileListBox. After setting the FilterComboBoxs FileList property to the name of a FileListBox, set the Filter property to the file types that you want to display. Heres a sample filter:   FilterComboBox1.Filter : All files (*.*)|*.* | Project files (*.dpr)|*.dpr | Pascal units (*.pas)|*.pas; Hints and Tips Setting the DirectoryListBox.Drive property and the FileListBox.Directory property (in the previously written OnChange event handlers) at runtime  can be also be done at design time. You can accomplish this kind of connection at design time by setting the following properties (from the Object Inspector): DriveComboBox1.DirList : DirectoryListBox1DirectoryListBox1.FileList : FileListBox1 Users can select multiple files in a FileListBox if its MultiSelect property is True. The following code shows how to create a list of multiple selections in a FileListBox and show it in a SimpleListBox (some ordinary ListBox control).   var k: integer;...with FileListBox1 doif SelCount 0 thenfor k:0 to Items.Count-1 doif Selected[k] thenSimpleListBox.Items.Add(Items[k]) ; To display full path names that are not shortened with an ellipsis, do not assign a Label object name to the DirLabel property of a DirectoryListBox. Instead, insert a Label into a form and set its caption property in the DirectoryListBoxs OnChange event to the DirectoryListBox.Directory property.

Essay Review Questions, Chapter 2 - 767 Words

Review Questions Chapter 2: What is a business case? How does a business case affect an IT project? A business plan that forecasts costs and revenues for a particular project over several years, especially to attract financing. It affects because it would say whether the IT project is good enough to go or should it be abandoned. So for any company can save money. What is a SWOT analysis and why is it important? A SWOT analysis is to study any factor affecting any company and how it would work. It is important because it can let the company detect its problems and its solutions to keep the company alive. What are five common reasons for systems projects? The Five common factors (TELOS) are Technology and†¦show more content†¦Step 1 would be to understand the problem or opportunity. Step 2 would be define the project scope and constraints. Step 3 is to perform fact-finding: Step 4. Is to analyze project usability, cost, benefit, and schedule data. Step 5 is to evaluate feasibility: Last step would be to present results and recommendations to management. What is project scope? What is a constraint? In what three ways are constraints classified? A projects scope defines the boundaries or extent of the project in specific terms. Constraint is a condition that the system must satisfy or an outcome that the system must achieve. There is present versus future constraints. There is internal versus external constraints. The last would be Mandatory versus desirable constraints. 10. Explain how you might use fishbone diagrams, Pareto charts, and XY charts in problem solving. Be specific, and describe the advantages of each tool. Fishbone: A fishbone diagram is an analysis tool that represents the possible causes of a problem as a graphical outline. 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ISO 900 Essay Example For Students

ISO 900 Essay Introduction In order to stay competitive, businesses have to be the best at what they do. Companys must be efficient and presise in all aspects of the job. (Metcalfe 1). ISO 9000 is made up of managements responsibility, the producers involved in the Quality Management System, the contract review, the design control, document and data control, purchasing, process control, inspection and testing, control of non-conforming product, corrective action, handling, storage, packaging and delivery, internal quality audits, training, servicing and statistical techniques (Prasanna 1). Quality control and quality assurance is very important there are certain requirements that take time and money to be met but in the end there are benefits. Types of specifications are very significant and the documentation of those is even more. Manufacturers and purchasers have major responsibility in the process of being successful. The quality of a product is so important, especially to the customer. A companys quality management system must become the documented proof of a firms commitment to quality management. A plan put together with quality procedures and work instructions is provided to help companies design their own quality management system. After completing the quality procedures, companies are audited and then determined if they should be certified for ISO 9000 or not (Parsanna 2). ISO: International Organization of Standards Founded in 1947 in Geneva Switzerland, ISO developed international standards and helped exchange goods and services worldwide. It is made up of over 90 countries including the US, which is called the American National Standards Institute. The name ISO came from the Greek word, isos, meaning equal (Henkoff 2). ISO was created by business men (Henkoff 2). These business men knew what businesses needed to become more competitive and how they could get higher customer satisfaction, so ISO was developed. ISO is not government regulated, but is ran by organizations like the US Registrar Accreditation Board. Such organizations authorize registrars which issue ISO certificates (Barrier 2). In Europe some organizations are government regulated. The American National Standards Institute runs the ISO in the US and authorizes the US Registrar Accreditation Board (Barrier 2). ISOs job is to set standards for companies all over the world so that their products come out efficiently and to the best quality. This helps the customers who receive the exports know exactly what they are getting and are satisfied with the product. Setting these standards is done by ISO members at assembly meetings. Proposals are developed by the ISO Council, which is like the board of directors in a business. These meetings are held three times a year and the membership is rotated to allow more representatives in (iso online). Standards are developed by technical committees. 30,000 experts participate to give comments, feedback and to vote in meetings which are held15 times a day electronically. The experts are chosen by an ISO member of that country (iso online). ISO 9000 The ISO 9000 series was published in 1987 (iso online). It is a standardization system that was developed by ISO. It is obtained by 130 countries, but its main office is in Geneva, Switzerland where the system is coordinated and the finished standards are published (iso online). These ISO standard are rules and guidelines that ensure the product that a manufacturing business produces is safe, reliable and efficient (iso online). These standards makes sure that businesses are living up to their promises. An ISO 9000 certificate is given to a business when it maintains the quality management requirements determined by ISO (Henkoff 1). ISO 9000 helps a business to get certified by telling it what requirements it should meet and how it will meet them. .u1271c943b14d1b33e025c586a7dd963e , .u1271c943b14d1b33e025c586a7dd963e .postImageUrl , .u1271c943b14d1b33e025c586a7dd963e .centered-text-area { min-height: 80px; position: relative; } .u1271c943b14d1b33e025c586a7dd963e , .u1271c943b14d1b33e025c586a7dd963e:hover , .u1271c943b14d1b33e025c586a7dd963e:visited , .u1271c943b14d1b33e025c586a7dd963e:active { border:0!important; } .u1271c943b14d1b33e025c586a7dd963e .clearfix:after { content: ""; display: table; clear: both; } .u1271c943b14d1b33e025c586a7dd963e { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u1271c943b14d1b33e025c586a7dd963e:active , .u1271c943b14d1b33e025c586a7dd963e:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u1271c943b14d1b33e025c586a7dd963e .centered-text-area { width: 100%; position: relative ; } .u1271c943b14d1b33e025c586a7dd963e .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u1271c943b14d1b33e025c586a7dd963e .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u1271c943b14d1b33e025c586a7dd963e .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u1271c943b14d1b33e025c586a7dd963e:hover .ctaButton { background-color: #34495E!important; } .u1271c943b14d1b33e025c586a7dd963e .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u1271c943b14d1b33e025c586a7dd963e .u1271c943b14d1b33e025c586a7dd963e-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u1271c943b14d1b33e025c586a7dd963e:after { content: ""; display: block; clear: both; } READ: African Dimensions Of The Stono Rebellion Essay It provides a framework for a company. It sets standards worldwide and help export goods to other countries. However, the company must have good strong leaders for it to thrive. The success of ISO 9000 on a business largely depends on the businesss organization. Planning, training, setting and achieving goals are all key to improvement or success of a business (Henkoff 5). ISO 9000 makes sure a company is doing what it says it is doing and helps them do it. However, that doesnt mean it is running the company and telling it what to do

Inline Skating into the 21st Century And Beyond free essay sample

A study on skating with emphasis on inline skating. This paper examines the evolution of skating and the emersion of inline skating. It reviews the museum exhibition, Inline Skating into The 21st Century and Beyond and describes the history of the wheel and other inventions that make the sport inline skating possible today. The paper includes color illustrations and photographs. Table of Contents 1. Description of Exhibit 2. The History of Inline Skating 3. Roller Blading 4. Exhibition Checklist 5. Marketing Analysis 6. Administrative Matters 7. Conclusion ?Inline Skating Into The 21st Century and Beyond will trace the roots of the wheel and how thru numerous developments and innovations the popular sport of inline skating was born. The exhibit will provide a retelling of how the wheel was invented, and outline the various inventions that were made possible because of the invention of the wheel with the primary focus on the evolution and history of inline skating. Moreover, the exhibit will present inline skating in all its many forms, including roller skating, ice skating and roller blading. We will write a custom essay sample on Inline Skating into the 21st Century And Beyond or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page