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"Oracle from Developer 10g" Part-2
Forms Builder: Key Features
forms Builder is a major component of Oracle Forms Developer. You can use Forms Builder to quickly develop form-based applications for presenting and manipulating data in a variety of ways.
Users of From Builder application can:
1. Insert, update, delete, and query data by using a variety of interface items
2. Present data by using text, image, and custom controls, including JavaBeans and Pluggable Java Components
3.Control forms across several windows and database transactions
4.Access comprehensive facilities by using integrated menus
5.Send data directly to Oracle Reports
As the designer of From Builder applications, you can:
1. Design forms that use a number of data sources, including Oracle databases
2. Build application quickly and easily by using powerful GUI development tools
3. Design applications for Internet deployment
4. Copy and move objects and their properties easily between applications
5. Use design features such as wizards, the layout Editor, Object Navigator and PL/SQL Editor.
Forms Builder Components: Layout Editor
The Layout Editor is a graphical design facility for creating and arranging interface items and graphical objects in your application. You can use the tool palette and the toolbar available
in the Layout Editor to design the style, color, size and arrangement of visual objects in the application.The layout can include Graphical Objects and images.
Form Builder Components: PL/SQL Editor
The PL/SQL Editor enables you to incorporate PL/SQL code objects into your form.Code Object in forms Developer includes event triggers, sub programs, menu item commands, menu startup code and package.
You enter and compile code in the PL/SQL Editor.You will learn more about the PL/SQL Editor in the later tutorial when you use it code triggers in Forms Builder.
Getting Started in the From Builder Interface
1.Start Forms Builder
2.Connect to the database
Forms Builder: Menu Structure
Navigating the Forms Builder Main Menu
The Forms Builder main menu contains options that enable you to create, modify,and manage you form modules.
Native GUI Interface
The menu shown in the slide depicts the Windows NT enviroment. Howerver,menus appear with the same look and and feel of your native GUI interface.
Blocks, Items and Canvases
1.Items: These are interface objects that present data values to the user or enable the user to interact with the form , depending upon the item type. there are several types of items.Items are
logically grouped into blocks and visibly arranged on canvases.
2.Blocks: A block is the intermediate building unit for forms.Each form consists of one or more blocks.A block is the logical owner of items, and each item in a form belongs to a block. Items in one block
are logically related.Blocks, therefore, provide a mechanism for grouping related items into a functional unit for storing,displaying,and manipulating records.
canvases: A canvas is a surface where visual objects,such as graphics and items, are arranged.A form module can have several canvases.A from module can have several canvases.A canvas can display items froms one or more blocks.
To see a canvas and its items, you must display the canvas in a window.by default, all canvases in a form appear in the same window, but you can assign separate windows for each canvas so that several canvases can be viewed at once.