Page 68 - AIS access_chang_ingraham

66 CHAPTER 4 SALES/COLLECTION BUSINESS PROCESS

21. Click OK and click the Run icon. (Note: If the Run icon is not visible, click
on View> Toolbars > Query Design.)
22. Return to the design view of the SQL Statement:Query Builder. Make another
composite field for the customer's name using the same process as in step 20. Put the
FirstName field first and the LastName field second with a space in between (" "). Name
this field CustomerCompName.
23. Close the Query Builder (by clicking the X in the upper right-hand corner) and
save the query. Close the Form Properties window.
24. Delete the LastName and FirstName fields and their labels. Delete the
CustomerCity, CustomerState, and CustomerZip fields and their labels.
25. Click on the Field List - icon. Scroll down and find the new
CustomerCompName field. Click on it and drag it above the CustomerAddress field
and drop it. Similarly, add the new CustomerCompAddress field below the
CustomerAddress2 field.
26. Delete the labels on the customer name and address fields by clicking on them
and hitting the delete key. Be careful not to delete the fields themselves. Adjust the size of
the new fields.

"31 Sales Form: Form
[11 ' , , I ' • , 1 ' , , I ' , • 2 • • , I • , • 3 • • , I ' , • 4 • • • I ' • , 5 • , • I • , • 6 ' • , I ';::
~ Form Heoder I
.- .
: IfI~iiQ_tre.N!l;::~:: :::;:: InvoiceNo CustomerCompName
......... ..
~ IIIiliiolte:Oate::: :::::; InvoiceDate CustomerAddressl
.............. , .
: CiiSlliriieL'lIE: :::,,; CustomerID
-I .."...... CustomerCompAddress

FIGURE 4-15

Since the Customer Table is one of the tables that data are read from in this form, we need
to ensure that the user cannot write any data to the Customer Table in this particular appli-
cation. Therefore, we now want to format the customer fields so that the user cannot
change the data that is entered in these fields.
27. Place the cursor below the lower right-hand corner of the
CustomerCompAddress field. Hold down the left mouse button and drag the cursor
across all of the customer fields until you are above the upper left-hand comer of the
CustomerCompName field.

28. We want the Customer information to automatically appear when the CustomerID
is entered. This is called closed-loop verification and it is an internal control. To achieve this,