Microsoft © Access 2000 Types of Forms Forms & Real Estate Conclusion Questions Why use a Form What...

Microsoft ©Access 2000

Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form

Maximizing Screen Real Estate with Microsoft

Access Forms


Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form

Maximizing Screen Real Estate August 9, 2001 2

What is a Form

• An object• Form is a bitmap until it has focus• A structured window or box• Contains header, detail and footer• Contains pre-defined area for editing

data• Form is a collection of controls• Control is a bitmap until it has focus


Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form


Why Use a Form

• To display and edit data• Hide underlying tables or queries• Provide ergonomic GUI for user• Validate data before writing to DB• Enforce business rules and logic• Application flow• Provides facilities for navigation• Custom messages based on conditions


Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form


Types of Forms

• Navigation or menu forms• Data input forms• Search or find forms• Pop up forms• Modal forms• Sub-forms• Tabbed or toggle forms• Message boxes• Input boxes


Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form


Data behind a Form

• Un-bound forms– Forms un-bound at run time

– Forms then bound with event

procedures

• Bound forms– Forms bound to table

– Forms bound to query

– Forms bound to code (VBA or SQL)


Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form


Controls on a Form

• Label & Text box• Option group & toggle/option button• Check box• Combo box & list box• Command button• Image (picture, logo or graphic)• Bound & Unbound object frame• Tab and sub form• Drawing controls (lines & shapes)• Active X (i.e. Calendar control)


Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form


Code behind a Form

• Form has 81 possible properties• 32 of them are Event driven• Access Macros (Just say NO!)• Visual Basic for Applications (VBA)• Structured Query Language (SQL)• Application Programming Interface (API)• Class modules• Standard modules


Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form


Forms & Real Estate

1. DB Design and Normalization2. Creating the Sub Form Control3. Linking the Sub Forms Controls4. Referring to Sub Form Controls5. Referring to Parent Form Controls6. Other Considerations7. Sample Application


Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form


1. DB Design and Normalization

• http://www.troubleshooters.com/littstip/ltnorm.html

• http://www.datamodel.org/NormalizationRules.html

First Normal Form Second Normal Form Third Normal Form

Remove repeating groups in individual tables

Create separate tables for sets of values that apply to multiple records

Remove fields that do not depend on a key

Create a separate table for each related data set

Relate the above tables with a foreign key

Identify each set of related data with primary key


Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form


2. Creating the Sub Form Control

• Mimic form to sub forms behavior via relationships

• Avoid forms based on complex multi-table queries

• Design and complete the sub form• Draw tab or toggle control on the main form• Bound versus unbound sub forms and

hardware• Left Right versus Top Bottom• Property sheet to construct sub form space• Drag & drop from Database container, or• Use the form wizard, or• Use the Subform/Subreport wizard


Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form


3. Linking the Sub Form Controls

• Source Object• Master (PK) Field with Child (FK) Field• Adhere to naming convention


Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form


4. Referring to Sub Form Controls

• Refer to sub form control from sub form:Me.ControlName

Examples:Me.cboStateProvince.SetFocusMe.txtCompanyDateUpdated = DateMe.fraSupplierInsured.Value = 0

• Refer to sub form control from main form:Me.subfrmName.Form!ControlName

Examples:Me.subfrmVenueProfile.Form!cboVenueTypeID.BackColor =

12632256 Me.subfrmPerson.Visible = False[Forms]![frmFindVenue]![lstVenueTypes]


Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form


5. Referring to Parent Form Controls

• Refer to sub form control from sub form:Me.ControlName

Examples:Me.cboStateProvince.SetFocusMe.txtCompanyDateUpdated = DateMe.fraSupplierInsured.Value = 0

• Refer to main form control from sub form:Me.Parent.ControlName

Examples:Me.Parent.Parent.txtCompanyDateUpdated = Date Me.Parent.chkInsuranceExpired.Value = -1


Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form


6. Other Considerations

• Strictly adhere to a naming convention• Turn OFF subdata sheets• Use surrogate keys whenever possible• MsgBox and InputBox are your friends• Custom Menus and the RunCommand acCmd

http://www.tkwickenden.clara.net/• Normalize, Normalize, Normalize• Index prudently


Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form


7. Sample Application

• Requirements called for most info visible

• Each screen fulfills many tasks• Forms display multiples level of info• Forms are command and menu driven• Navigate with keyboard (1) and mouse (2)

• 4 Escape keys exits application


Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form


Conclusion

• Forms are objects• Visual “filter” for underlying data• Easier to view and manipulate• Offers security, flexibility and

productivity• Validates all entry before writing to DB• Enforces business rules• Allows users to navigate entire

application• Proper form layout maximizes efficiency


Types of Forms

Forms & Real Estate

Conclusion

Questions

Why use a Form

What is a Form

Data behind a Form

Controls on a Form

Code behind a Form


Questions

Ofer ShimratSoundoff Computing(858) 484-0400

[email protected]

Thank You

Microsoft © Access 2000 Types of Forms Forms & Real Estate Conclusion Questions Why use a Form What...

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