MELJUN CORTES Visual Basics Data Report & Data Environment & Input Validation & Application Distribution

8/13/2019 MELJUN CORTES Visual Basics Data Report & Data Environment & Input Validation & Application Distribution

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The ability to create bandedhierarchical reports.MELJUN ORTES


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Steps in Adding DataReport

1. In your StandardEXE project,

Click Projectmenu,

2.Click Add DataReport menu.


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Parts of theData Report

1.Data Report Object

Like Visual Basic form, the Data Reportobject has both a visual DESIGNERanda CODE MODULE.

2.Data Report Controls Special controls that can only be used

in Data Report Designer.


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ReportDesigner

The object

where you candesign andlayout a report.


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DesignerSection

1. Report Header

Contains the text that appears at the

very beginning of a report, such as thereport title, author, or database name.

2. Page Header Contains information that goes at the

top of every page, such as the reports

title


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Sectionontinue

3. Group Header/Footer Contains a repeating section of the

data report. Each group header ismatched with a group footer.

4. Details

Contains the innermost repeating

part (the records) of the report.


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Sectionontinue

5. Page Footer

Contains the information that goes at

the bottom of every page, such as the

page number.

6. Report Footer Contains the text that appears at the

very end of the report, such as

summary information, or an address.


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DesignerSectionPreview


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It also allows

the user to

show and hideits parts such

as the

following:Report

header/footer

Page header/footer

GridRulers

and add several

GroupHeader/Footer


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Data ReportControls

RptFunction

RptShape

RptLine

RptImage

Pointer

RptLabel

RptTextbox

oolbox


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Controlsontinue

1.Pointer Allows you to select a certain parts,

section or controls

2.Label Control (RptLabel) Allows you to place labels on the report to

identify fields or section

3. Image Control (RptImage) Enables you to place graphics on your

report.


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DesignerFeatures

Drag and Drop Functionalityfor Fields

Toolbox Controls

Print Preview

Print Reports

File Export

Export Templates

Asynchronous Operation


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A database Connection


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1. In your StandardEXE project, Click

Project menu,

2.Click AddEnvironmentmenu.

Steps in AddingData Environment

Add C i


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Data Environmentbuttons

AddConnection

Add Child Command

Insert Stored Procedure

Add Command

Delete

RefreshDesign

Properties

ViewCode

Option

Arrange by Connection

Arrange by Object


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Step in Connecting DataEnvironment to database

1.Add Connectionin your DataEnvironment by clicking AddConnection Button

2.Click Propertiesbutton

3.A common dialog box appear Data LinkProperties


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4.Click Microsoft Jet 3.51 OLE DBProviderfor the converted database andMicrosoft Jet 4.0 OLE DB provider forthe unconverted database. This selects

the correct OLE DB provider foraccessing a Jet database.

Connectionontinue


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5.Click the Next button to get to theConnection Tab.

6.Click the ellipsis button ()next to thefirst text box.

Connectionontinue


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Connectionontinue

7.Use the Select Access Database dialogbox to search your (*.mdb database

type), database.

8.Choose your database then click testconnection button. Then click OK toclose dialog box.


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Connectionontinue

9.Click Add CommandButton to displaythe command1 dialog box. In the dialogbox, set the properties as shown below:

CommandName

Name

Connection

Database Object


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10.Click OKto Close the Dialog box.

11.Then drag fieldnameson the reportwhich you want to use in the report

Connectionontinue


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Connecting Data Reportto Data Environment

1. On the properties window, clickDataSource and then click

DataEnvironment1 (the name of yourData Environment)

2. Then click DataMember and choosetablenamethat you want to use inyour report.


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The process in how to format,

restrict, and receive input data


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Input ValidationIn Visual Basic

Field Level Validation

Using Textbox to restrict data entry

Using the masked edit control

Form Level Validation Form Event Validation


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Field LevelValidation

InputBox Function

KeyPress Event

KeyUp and KeyDownEvent

Validate Event

Using Input FieldsEvent to restrictdata


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Field Levelontinue

Using the InputBox Function

Private Sub Form_Load()

varAge = InputBox(Enter Your Age:)

End Sub

InputBox( Prompt, [Title], [Default], [Xpos], [Ypos],

[HelpFile], [Context]) As String

Displays standard dialog box prompting

the user to enter a string value.


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Field Levelontinue

Using KeyPress to Modify Keystrokes

Private Sub Text1_KeyPress(KeyAscii As Integer)

KeyAscii = Asc(UCase(Chr(KeyAscii)))'Chr(CharCode As Long)

'UCase(String)

'Asc(String As String)As IntegerEnd Sub

When user enters a standard ASCII

character, the KeyPress event occurs.


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Field Levelontinue

Using the Validate Event Using LostFocus& ValidateEvent to restrict input

Private Sub Text1_Validate(Cancel As Boolean)

If Text1.Text = "Welcome" Then

MsgBox "Valid Input"

Else: MsgBox "Invalid Input"

End If

End Sub

when the control lost its focus, the

Validate Eventoccurs


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Using Textbox torestrict data entry

MaxLengthProperty

PasswordCharProperty

LockedProperty

Using TEXTBOX properties to restrict

user inputs


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MaxLength Property

Used to set a

maximum number

of character thatcan be entered

into a textbox.


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Locked

Property

Determines

whether users can

edit the text in atext box.


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Passwordchar

property

Allows the user to

hide characters

that are enteredinto a text box.


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Using the maskededit control

Mask Property

FormatProperty

Text and ClipText Properties

AutoTab Property

Clearing Masked Edit

ValidationError Event

Using MASKED EDITproperties and

event to restrict and format data


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Mask Property

Allow the user to

hide characters

that are enteredinto a text box.


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formatproperty

Defines the

format you want

to use fordisplaying and

printing the

content of thecontrol


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AutotabProperty

When AutoTabproperty is True,

the insertionpoint

automatically

moves to the nextcontrol


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masked editontinue

Using the ValidationError EventPrivate Sub MaskEdBox1_ValidationError(_

InvalidText As String, StartPosition As Integer)If StartPosition = MaskEdBox1.MaxLength Then

MsgBox "Limit 6 digit"

Else: MsgBox "Digits Only"

End IfEnd Sub

Occurs when the user types invalid

character


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Form LevelValidation

Form Level Keyboard Handler

Enabling an OK Button Validating all fields on a form

This kind of validation will occur

when all fields are filled in.


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Form LevelKeyboard Handler

When KeyPreviewproperty of form is

True. The formreceives events such

as KeyDown,

KeyPress, & KeyUp

before any controlson the form


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Form Event Usedin Validating Data

Active andDeactive Event

GotFocus andLostFocus Event

Load andUnload Event

QueryUnload Event

Using the form event to manage theforms, initialize controls andvariables and write termination code.


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Allocating of your Application


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Steps for Distributingan Application

1. Packaging You must package your application files

into one or more .cab files that can bedeployed to the location you choose,and you must create Setup Program forcertain types of packages.

2. Deployment You must move your packaged

application to the location users caninstall it from.


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Tools for Packagingand Distribution

1. Package and Deployment Wizard

Automates many of the steps

involved in distributing application bypresenting you with choices abouthow you want to configure your .cabfiles.

2. Setup Toolkit

Lets you customize some of whathappens during the installation

process


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Using the package and deployment wizard

Three ways you can start the wizard

Run from within Visual Basic as anadd-in

Run it as a stand-alone componentfrom outside the development

environment Run it in silent mode by launching it

from a command prompt


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1.Click the Add-insmenu, then

choose Add-InManager

Installing the Package Deployment Wizard


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2. In the list ofAvailable Add-Ins,

select Package &

Deployment

Wizard

3. Check theLoaded/Unloaded

option & click OK

InstallingContinued...


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Two Kinds ofpackages

1. Standard Packages

Distributing your application on disk,floppy or via a network share

2. Internet Packages Distributing your application via an

internet or intranet site

1


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1. Open the projectyou want to

package or deployusing the wizard

2. Select Package &

DeploymentWizardfrom the

Add-Insmenu to

start the wizard

Step in creatingStandard Package


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3. On the mainscreen, click

Package.

Standard Packageontinue


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4. Select StandardSetup Package

as the packagetype and click

Next


5 Ch f ld


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5. Choose a folderlocation where

your package willbe assembled,

then click Next


6 I th li t f fil t


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6. In the list of files toinclude as part of

your application,select or clear the

check box to the

left of the file

name, and thenclick Next


7 Ch ith


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7. Choose eitherSingle cab or

Multiple cabsand click Next


8 E t th titl t


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8. Enter the title tobe displayed

when the Setupprogram is run,

and click Next


9 Ch th


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9. Choose theStart Menu

groups anditems that will be

created by the

installation

process, and

click Next


10 M dif fil


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10.Modify any filelocation and

subfolderinformation for

each of the

files listed, if

desired, and

click Next


11 Ch k fil


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11.Check any filesyou want to

install asshared, and

then click Next


12 I th S i t


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12.In the ScriptName field, enter

a name underwhich to save

settings for the

current session,

and then click

Finish to create

the package

Standard Package

Documents

MELJUN CORTES Visual Basics Data Report & Data Environment & Input Validation & Application Distribution