LANGUAGES | POWER BUILDER | POWER BUILDER INTERVIEW QUESTION AND ANSWERS - 12

Power Builder Interview Question and Answers:

51.     How can you modify a code table during execution?      Using GETVALUE() and SETVALUE() functions.

52.     How do you get the name of a DropDownDataWindow?
      GetChild()

53.     How do you trap errors from the DataBase in the DataWindow?
      Write some code in the DBError Event
For example:
IF SQLCA.SQLCode <> 0 THEN
MessageBox()
return 1
END IF

54.     What are Extended column attributes? How can you change them dynamically?
      It’s DataWindow object property (Expressions) which we can change dynamically using Modify() function.

55.     What is a code table?
      Specifies whether PowerBuilder uses the code table for the column to validate data. Values are Boolean: True-Uses code table to validate data; False-Does not use code table to validate data. The appearance of the text is specified by the edit mask. Each row in the Code Table is a pair of corresponding values: a display value that user sees and data values-those that are saved in the database.
Code Tables are used with DropDownListBox and RadioButtons.