IFSM247 – Introduction to PowerBuilder

Quiz #2

1. Which of the following controls would you use when only one choice is appropriate? for selecting options?

1. GroupBox
2. Multi-Select List Box
3. RadioButton
4. Single Select List Box

2. A developer wants to execute the code attached to the clicked event of a command button. The button is named cb_save. Which of the code statements are valid?

A. clicked!cb_save.TriggerEvent()

B. exec cb_save.TriggerEvent(Clicked!)

C. run cb_save.TriggerEvent()

D. cb_save.TriggerEvent(clicked!)

3. Which of the following are valid variable names?

A. 1_variable_name

B. variable_name_1

C. $_total_dollar_value

D. percent_%

4. The developer wants to use a command button to append the text property of a single-line-edit with the string “7”. Which of the following code segments could accomplish this.

A. sle_display = sle_display + 7

B. sle_display.text = sle_display.text + 7

C. sle_display.text = sle_display.text + this.text

D. sle_display.text = sle_display.text + “7”

5. From within the Integrated Development Environment (IDE), which means inside of PowerBuilder, you try to run the application. You see a message box with the following message: “This application needs a script for its open event”. Which code segment/location pair would correct this problem?

A. Open(w_main) in the application open event

B. Open(w_main) in the w_main open event

C. Open(w_main) in the w_main constructor event

D. Adding code would not correct this problem.

6. In the line of code, lb_city.SelectedText(), SelectedText() refers to a(n):

A. function

B. property

C. object

D. event

7. In the line of code, lb_city.Text(5), 5 is:

A. an argument to the text function

B. a reference to the index of the listbox

C. a variable

D. the state of the index item

8. The default window created by the Windows painter is a:

A. Child Window

B. Main Window

C. PopUp Window

D. Response Window

9. To define a menu shortcut key, you precede the shortcut letter with which symbol:

A. ^

B. %

C. &

D. –

10. There are two windows open in an application, Window A and Window B. When the user presses a command button on Window B, some text should be set in a single line edit control on Window A. Which of the following code segments would accomplish this task?

A. w_window_a.sle_display.text = “Some text”

B. sle_display.text = “Some text”

C. sle_display.text(TriggerEvent) = “Some text”

D. TriggerEvent(w_window_a.SetText(“Some text”)

True or False

11. _____ You should always allow PowerBuilder to generate an application framework when creating an application object.

12. _____ You will get an error if the application object has the same name as the pbl filename.

13. _____ In the code segment, cb_exit.text, text is an event.

14. _____ For counter = 1 to len(sle_password.text) is a valid way to begin a for loop

15. _____If a window is open, it must be visible.

16. _____ A response window is an example of a modal window.

17. _____ Every if statement must have an end if

18. _____ A function can return multiple data items.

19. _____ In PowerBuilder arguments to functions are usually passed by value.

20. _____ Menus are attached to windows using the windows painter.