Tips
on the syntax generated by DWSyntax
-
Anything surrounded by <> indicates that a real value
must be substituted (without surrounding <>). All other syntax
is correct as is including single quotes. -
Internal to PowerBuilder, all DataWindow object properties are
stored in strings. These can represent strings, numbers, or boolean
(1/0, yes/no).
Where appropriate the compiler allows for the assigning of numbers
or booleans and converts them to strings automatically. When these same
property values are read they are returned as a string for the Describe
syntax and as an Any variable for dot notation syntax.
Examples
The DataWindow readonly property is stored as ‘yes’ or
‘no’.
Each of the following syntax statements sets the property to
‘yes’.
|
1 2 3 4 |
dw_1.Modify("DataWindow.ReadOnly=Yes") dw_1.Modify("DataWindow.ReadOnly=True") dw_1.Object.DataWindow.ReadOnly = 'Yes' dw_1.Object.DataWindow.ReadOnly = True |
The result of dw_1.Describe(“DataWindow.ReadOnly”) is a string
containing either ‘yes’ or ‘no’.
The result of dw_1.Object.DataWindow.ReadOnly is an Any containing
either ‘yes’ or ‘no’.
The Column.Border property is stored as ‘0’ through ‘6’.
Each of the following syntax statements sets the property to
‘5’.
|
1 2 3 4 |
dw_1.Modify("Column.Border = 5 ") dw_1.Modify("Column.Border = '5' ") dw_1.Object.Column.Border = 5 dw_1.Object.Column.Border = '5' |
The result of dw_1.Describe(“Column.Border”) is always a
string.
The result of dw_1.Object.Column.Border is an Any always
containing a string.