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Introduction To Form Builder

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Presentation on theme: "Introduction To Form Builder"— Presentation transcript:

1 Introduction To Form Builder
Part A Eyad Alshareef

2 Forms Application with a graphical user interface that looks like a paper form Used to insert, update, delete and view database data Eyad Alshareef

3 Primary Form Uses Viewing/retrieving records
Inserting/updating/deleting records Counting the number of records a query will retrieve Eyad Alshareef

4 Data Block Forms Form associated with a specific Oracle database table (object) System automatically creates: Text fields associated with table fields Programs for inserting, modifying, deleting, and viewing data records Eyad Alshareef

5 Data Block Forms ORACLE 10g forms are displayed on web browser as a web page. They are displayed in Forms Services Window. The form specification is translated into Java Applet. They are Dynamic Web Pages. Eyad Alshareef

6 Displaying Forms in a Web Browser
Developer10g displays forms as Web pages In Web browser Form appears in Forms Services window within browser window Forms Services application displays menus and toolbar Provide general functions for all form applications Eyad Alshareef

7 Architecture of the World Wide Web
Web browsers (IE, Mozilla, Foxfire) Web servers Web page Static (always displays the same information ) Dynamic (the content varies based on user inputs or data retrieved from external resources ) Forms Builder form Dynamic Web page Derives content from Oracle 10g database Eyad Alshareef

8 How Forms Builder Displays a Form in a Browser
Java applet Self-contained Java program that runs in a web browser generic java runtime environment OC4J Instance Translates compiled .fmx file into Java applet Downloads Java applet to Web browser Eyad Alshareef

9 Using a Data Block Form Block Data block Text items Form menu
Group of related form items Data block Corresponds to specific database table Contains objects that display values from table’s data fields Text items Form menu Contains selections to manipulate form Eyad Alshareef

10 Using a form to view table record
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11 Form Modes Normal Enter Query
You can view records and sequentially step through records Enter Query You can enter search parameters in form fields and then retrieve the associated records To place the form in Enter Query mode, click the Enter Query button Eyad Alshareef

12 Forms Services Window Form menu contains selections that allow you to manipulate the form Has a toolbar with buttons to insert, view, modify, and delete records At bottom of the window are lines that display information about form status Eyad Alshareef

13 Forms Services Window Eyad Alshareef

14 Inserting New Records In Normal mode, click the Insert Record button to insert a new blank record Type the data values in the form fields Click the Save button to save the values in the database Eyad Alshareef

15 Retrieving Records Click the Enter Query button to place the form in Enter Query mode Type a search condition Click the Execute Query button to retrieve selected records If you click , do not enter a search condition, and then click , all table records will be retrieved Eyad Alshareef

16 Form Search Types Exact search: only retrieves records that exactly match the entered search condition Restricted search: retrieves records that fall within a range of values Eyad Alshareef

17 Restricted Search Operators
_: wildcard replacing a single character %: wildcard replacing multiple characters >, <: greater than, less than >=, <=: greater than or equal to, less than or equal to <> or !=: not equal to Eyad Alshareef

18 Scrolling Through Retrieved Records
To view the next record, click the Next Record button To view the previous record, click the Previous Record button Eyad Alshareef

19 Updating and Deleting Records
Retrieve the record to be updated or deleted To update, change the data value and click the Save button To delete, click the Remove Record button Eyad Alshareef

20 Closing a Form and Committing Changes
To close a form: Click Exit button Click Action on the form menu and then click Exit Close browser window If unsaved changes exist, dialog box will prompt to save changes Eyad Alshareef

21 Creating Data Block Form
Eyad Alshareef

22 Start Oracle Form Builder
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23 Start OC4J Instance Eyad Alshareef

24 Creating a new form Create a new module Create a data block
Create a layout Eyad Alshareef

25 Data Block Form File Types
.fmb Form design file, used by form programmer in Form Builder .fmx Form executable file, run by form users Eyad Alshareef

26 Creating a Data Block Form
When creating a form for a table, Forms Builder automatically creates: Labels Text entry fields Insert, update and delete and select queries Eyad Alshareef

27 The Object Navigator Eyad Alshareef

28 The Object Navigator Displays Forms Builder objects and underlying components As hierarchical tree Forms Builder toolbar displays buttons Form module Object node + indicates lower-level objects - indicates node expanded fully Eyad Alshareef

29 Form Components Form module: form application Form window
Title bar on top Horizontal and vertical scrollbars Can be resized, maximized, minimized Eyad Alshareef

30 Form Components Canvas Block Form items
Surface that displays form items Block Object that contains form items Form items Command buttons, radio (option) buttons, text items Items in the same block can appear on different canvases Eyad Alshareef

31 Form Components Window Canvas Block of items Name Cash Check
Credit Card Eyad Alshareef

32 Creating a New Data Block Form
Create a new form module Create a new data block using: Data block wizard Manual process Using Data Block Wizard: Select table name Move editable fields from Available Columns list to Database Items list Use Layout Wizard to create form layout Eyad Alshareef

33 Layout Editor Use to customize form display
Can add images and static text to enhance form appearance Eyad Alshareef

34 Layout Editor Eyad Alshareef

35 Creating a Data Block Form
Steps: 1. Create the data block using the Data Block Wizard 2. Create the form layout using the Layout Wizard Eyad Alshareef

36 Data Block Wizard Welcome page Type page Table page Finish page
Select table or view on which to base the block source Table page Select table associated with form Enforce Integrity Constraint Check Box Finish page Option to use the Layout Wizard to automate creating the layout Eyad Alshareef

37 Layout Wizard Canvas page Data Block page Items page Style page
Select the canvas where the block is displayed Data Block page Select the fields that are displayed on the layout Items page Specify the column labels, heights and widths Style page Specify to create a form- or tabular-style layout Eyad Alshareef

38 Layout Styles Form style Tabular style
One record appears on the form at a time Tabular style Multiple records display on the form in a table Eyad Alshareef

39 Create a new form based on MODULE1
Go to File/New/Form – a new module is added to your object navigator window Click on MODULE2 and rename it into STUDENT Eyad Alshareef

40 Create a data block based on a table
Right click on the STUDENT module and select Data Block Wizard Click next on the Data Block Wizard welcome page Eyad Alshareef

41 Creating a data block (cont’s)
Select Table/view option Select a table by clicking on Browse button Eyad Alshareef

42 Selecting a table (cont’d)
When you click browse, you will be prompted to log in Login into your usual account and select table STUDENT from the displayed list Eyad Alshareef

43 Select database items Move all the attributes into selected attributes pane using arrow buttons Eyad Alshareef

44 Name your data block Eyad Alshareef

45 Select the “… then call the Layout wizard” option
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46 Creating a layout Layout wizard allows you to create a form layout
Click next on the welcome page and select content canvas type Eyad Alshareef

47 Select items to be displayed
Modify the labels (prompts) and widths of corresponding text boxes if necessary Eyad Alshareef

48 Select a layout Select form layout Name the frame
Select the number of students to be displayed Eyad Alshareef

49 Complete and view the form
Complete and view the form design Eyad Alshareef

50 Form Builder Wizards Are Re-entrant
You can select a block or layout, then re-enter it and modify its properties using the Wizard A Wizard is in re-entrant mode when its pages appear as tabs Eyad Alshareef

51 Creating a Form to Display Multiple Records
Tabular layout Display multiple records on same form Select Tabular on Style page of Layout Wizard Eyad Alshareef

52 Creating a Form to Display Multiple Records
Use tabular layout to edit multiple table records at the same time Eyad Alshareef

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