BIS 311 DeVry Week 7 iLab

ProductFound= result of GetProduct() method of dataSvc
if ProductFound is True
Display Product name and Product price
Else Display "Product ID not found"
Stop button-click event handler
Class Diagram for DataService Class
DataService
+numeric ProductID
+string ProductName
+string ProductPrice
GetProduct()
Pseudocode for GetProduct() Method of DataService Class
Boolean GetProduct()
Instantiate DataSet object for the Inventory database
Instantiate TableAdapter object for the Products table in the Inventory database
Declare Boolean variable Found
Use the Products TableAdapter object to retrieve the Products record matching ProductID into the Inventory DataSet
object
If the count of Products records in the Inventory DataSet > 0
Set ProductName=ProductName field of the first retrieved record
Set ProductPrice=ProductPrice field of the first retrieved record
Set Found=True
Else
Set Found = False
Return Found
End GetProduct()
Remember This
In a true client-server application running on a network, the code in the DataService class would be executed on the
server (the data-services tier), and the form would be executed on the client (the user-interface tier). In this lab, both
the DataService class and the form will be executed on the same computer.
Deliverables
Submit a Word document named Lab7YourFirstLastName.docx (where YourFirstLastName = your first and last name;
e.g., Lab7JohnSmith.docx) containing the following.
Screenshot of form showing the application running, with a valid product ID entered and the corresponding
product name and price displayed
Screenshot of form showing the application running, with an invalid product ID entered and the message
"Product ID not found" displayed
Copy of code for button-click event
Copy of code for DataService class