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Cell Phone Applications and Web Services

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With Visual Studio 2005 open, click the New Project button on the Standard ... Click the ellipsis button to the right of the Items property. ... – PowerPoint PPT presentation

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Title: Cell Phone Applications and Web Services

1
CHAPTER 12

Cell Phone Applications and Web Services

2
Objectives

Create a Smartphone application
Use a cell phone keypad for input
Enter input using a Smartphone
Enter other characters using the keypad
Add Smartphone Toolbox objects

3
Objectives

Create a softkey menu
Code the Smartphone application
Display MessageBox objects in a Smartphone
environment
Find Web services

4
Objectives

Create a Web service connection
Call a Web service method
Create a Crystal report
Display a Crystal report

5
Introduction
6
Creating a Smartphone Application

With Visual Studio 2005 open, click the New
Project button on the Standard toolbar, click
Smart Device in the Project types pane on the
left side of the New Project dialog box, and
then, if necessary, click the plus sign next to
Smart Device
Click Smartphone 2003 under Smart Device in the
Project types list. In the Templates pane, click
Device Application (1.0)
In the Name text box, change the name of the
Smart Device application from DeviceApplication1
to TipCalculator. Click the OK button

7
Creating a Smartphone Application
8
Entering Input Using a Smartphone

With the TipCalculator application open, name the
Form object frmTip.vb. Title the Form object by
changing the Text property to Tip Calculator. Add
a Label object to the form named lblBillAmount.
Change the Text property of the Label object to
Amount of Bill. Drag a TextBox object under the
Label object. Name the TextBox object txtBill.
Clear the Text property. Resize the Label object
to fit the text exactly. Center the Label and
TextBox objects horizontally on the form
Run the Smartphone application by clicking the
Start Debugging button on the Standard toolbar
Make sure Smartphone 2003 SE Emulator is
selected, and then click the Deploy button
To enter the bill amount of 75.22, press the 7
key on the keypad five times quickly. The letter
p appears first, then the letter q, then the
letter r, then the letter s, and lastly the
number 7. Next, press the 5 key on the keypad
four times quickly to enter the number 5

9
Entering Input Using a Smartphone

To enter the decimal point, hold the key in the
lower-right corner of the keypad until the
Symbols window opens
To enter the decimal point, press the navigation
keys, such as the right ARROW KEY and DOWN ARROW
key, to move to the decimal point (period) in the
Symbols window. To select the decimal point,
press the Action key in the center of the
navigation keys. Enter the digits 22 by first
pressing the 2 key four times quickly. Wait a few
seconds and press the 2 key four times quickly
again to display the second 2
To close the application, click the Close button
in the upper-right corner of the program window
Click the No button, and then click the OK button

10
Entering Input Using a Smartphone
11
Adding Smartphone Toolbox Objects

If necessary, open the TipCalculator application,
which includes the first Label and TextBox object
on the form. Drag a second Label object named
lblPercentage to the form below the TextBox
object. Change the Text property to Tip
Percentage. Drag the ComboBox object to the Form
object below the second label. Name the ComboBox
object cboTipPercent. Click the ellipsis button
to the right of the Items property. Enter the
three tip percentage amounts into the String
Collection Editor 10 (press ENTER), 15 (press
ENTER), and 20. Resize the objects to the exact
size of the text. Center both the Label and
ComboBox objects on the center of the form

12
Adding Smartphone Toolbox Objects

Run the Smartphone application by clicking the
Start Debugging button on the Standard toolbar.
In the Deploy TipCalculator window, make sure the
Smartphone 2003 SE Emulator option is selected,
and then click the Deploy button. When the
Smartphone emulator opens and loads the
application, enter 75.22 in the first TextBox
object using the keypad. To move to the ComboBox
object for input, click the down arrow key on the
navigation keypad. To view the ComboBox items,
click the right arrow on the navigation keypad
10 is displayed in the ComboBox object. Click
the right arrow again to view 15. Select the 15
tip percentage by clicking the Action button in
the center of the navigation keypad. Close the
Smartphone emulator without saving the emulator
state

13
Adding Smartphone Toolbox Objects
14
Creating a Softkey Menu

On the frmTip Form object of the TipCalculator
application, click the left side of the Command
control area
Type Compute Tip in the Command control area.
Press ENTER. Use the (Name) property to name the
Command control area mnuComputeTip

15
Coding the Smartphone Application

In the TipCalculator application, double-click
the mnuComputeTip Command control area in the
lower-left corner of the Smartphone Form object
Enter the code shown on the following slide to
compute the tip for the restaurant bill amount

16
Coding the Smartphone Application
17
Program Design
18
Program Design
19
Designing the Program Processing Objects
20
Finding Web Services

With a new Windows Form object open with the
project name CurrencyConverter, right-click the
project name CurrencyConverter in the Solution
Explorer
Select Add Web Reference on the shortcut menu
Enter the following Web service URL in the URL
text box http//www.webservicex.net/CurrencyConve
rtor.asmx?wsdl. Then click the Go button to
connect to the Web service. You must be connected
to the Internet to find the Web service. If the
Web service is available online, a message
appears stating the name of the method that will
be used in the code window to call the existing
Web service
Click the Add Reference button in the Ad Web
Reference window

21
Finding Web Services
22
Creating a Web Services Connection

After creating the Web reference, open the code
window to create an instance of the Web service
class. To create an instance named wsMoney (where
ws stands for Web service), type Dim wsMoney as
New net. You include the word net because the Web
reference listed in the Solution Explorer begins
with the name net
To complete the name of the Web service, type a
period and webservicex appears in the
IntelliSense window. Select webservicex, type a
period, and www appears in the IntelliSense
window. Select www and type another period
Select the Web service named CurrencyConvertor in
the IntelliSense window. Press the ENTER key

23
Creating a Web Services Connection
24
Calling a Web Service Method

In the code window, assign a Double data type
variable named dblConversionAmount. The data type
is assigned as a Double because the Web reference
stated that the return type is a Double data type
The variable dblConversionAmount is assigned to
the returned value from the calling method
ConversionRate. ConversionRate is method of the
instance of wsMoney. Type dblC and press
CTRLSPACEBAR to complete the variable
dblConversionRate. Type wsMoney. An
IntelliSense list opens. Select ConversionRate,
and then type a left parenthesis (
To convert U.S. dollars to euros, scroll down the
list of first arguments and select
net.webservicex.www.Currency.USD. Type a comma
and the second list of arguments appears. Scroll
down the list of second arguments and select
net.webservicex.www.Currency.EUR for euros. Type
a closing parenthesis

25
Calling a Web Service Method
26
Program Design
27
Program Design
28
Designing the Program Processing Objects
29
Crystal ReportsCreating a Report

Open Visual Studio using the Start button on the
Windows taskbar and the All Programs submenu.
Click the New Web Site button on the Standard
toolbar. In the list of Visual Studio installed
templates, click ASP.NET Web Site. Name the
sample report PhysicianReferral. Click the OK
button
Right-click the project name PhysicianReferral in
the Solution Explorer, and then click Add New
Item on the shortcut menu. When the Add New Item
window opens, click Crystal Report in the list of
installed templates
Click the Add button

30
Crystal ReportsCreating a Report

Click the OK button. Download the database named
physicians.mdb from the scsite.com/vb2005/ch12 to
a removable disk, such as a USB drive. Click the
plus sign in front of Create New Connection to
expand the options. Click the plus sign in front
of Database Files. Browse to the physicians.mdb
database and select the file. Click the Open
button. Select the PhysicianList table and then
click the Add (gt) button in the center of the
window
Click the Next button. In the Fields dialog box
of the Standard Report Creation Wizard, hold down
the CTRL key and select the Physician Name, City,
State, and Specialty fields. Click the Add (gt)
button in the center of the form
Click the Next button. Click the Next button
again to create a report without any groupings.
Click the Next button again to create a report
without a summary. If necessary, click the Next
button again to create a report without any
subsets. In the Report Style window, select the
Red/Blue Border style
Click the Finish button

31
Crystal ReportsCreating a Report
32
Displaying the Report

Click the Default.aspx tab to open the Web form.
Open the Crystal Reports category on the Toolbox
by clicking the plus sign to expand the Crystal
Reports category. Drag the CrystalReportViewer
object onto the Default.aspx Web form
If necessary, click the action button on the
CrystalReportViewer object, and then click the
Choose Report Source list arrow. Select ltNew
Report Source...gt. The Create Report Source
window opens. Click the Specify Crystal Report
for the CrystalReportSource control list arrow,
and then select CrystalReport.rpt
Click the OK button. Click the Start Debugging
button on the Standard toolbar to execute the Web
page. On the Debugging Not Enabled window, click
the OK button