Exhibit:
The Credit_Rating in the Customers block of an Order Entry form must be restricted to three possible values:
Good, Bad, or Null (the latter value indicates that the credit rating has not been determined). Order entry clerks must be able to update this item to any of these three values. You want to change the item to a check box labeled “Credit Risk” that should be selected if the customer has bad credit. The check box should not be selected if the customer’s credit rating is good or undetermined. You change the item type to Check Box and set other properties as shown in the exhibit, then run your form and insert three records: two with good credit and the check box clear, and one with bad credit and the check box selected. You commit the data and query the records, with the following result set:
CUST_ID LAST_NAME FIRST_NAME CREDIT_RATING
———— —————– —————— ———————— 1001 Gamer Pam
1002 Wallace Sheila
1003 Maslen Glenn Bad
The first two records show an undetermined credit rating, although your intention was to set the value to Good for those customers.
What change must be you make in the properties of the Credit_Rating item to enable values of Good, Bad, and Null to be entered?
A.
Change the Initial Value property to Good.
B.
Change the Check Box Mapping of Other Values property to Not Allowed.
C.
Change the Initial Value to Good and the Value When Unchecked property to Null.
D.
Change the Initial Value property to Good and the Check Box Mapping of Other Values property to Null.
E.
Change the Initial property to Good and the Check Box Mapping of Other Values property to Checked.
F.
Change the item type.
It is not appropriate to use a check box to enable entry and update of more than two values in an item.