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ddlb.property – PB Docs 2018 – PowerBuilder Library

ddlb.property – PB Docs 2018

ddlb.property

property (DataWindow object)

Description

Properties that control the appearance and behavior of a column
with the DropDownListBox edit style.

Applies to

Column controls

Syntax

PowerBuilder dot notation:

Describe and Modify argument:

Parameter

Description

columnname

The name of a column that has the DropDownListBox
edit style.

property

A property for the DropDownListBox column.
Properties and their settings are listed in the table
below.

value

The value to be assigned to the property. For ddlb
properties, value cannot be a DataWindow
expression.

Property for ddlb

Value

AllowEdit

Whether the user can type a value as well as choose
from the DropDownListBox’s list.

Values
are:

Yes — Typing is allowed.

No —
(Default) Typing is not allowed.

Painter: Allow
Editing option.

AutoHScroll

Whether the DropDownListBox automatically scrolls
horizontally when the user enters or deletes
data.

Values are:

Yes — (Default)
Scroll horizontally automatically.

No — Do not
scroll automatically.

Painter: Auto Horizontal
Scroll option.

Case

The case of the text in the
DropDownListBox.

Values are:

Any —
Character of any case allowed.

Upper — Characters
converted to uppercase.

Lower — Characters
converted to lowercase.

Painter: Case
option.

Limit

An integer from 0 – 32767 specifying the maximum
number of characters that can be entered in the DropDownListBox.
Zero means unlimited.

Painter: Limit
option.

NilIsNull

Whether to set the data value of the
DropDownListBox to null when the user leaves the edit box
blank.

Values are:

Yes — Make the empty
string null.

No — Do not make the empty string
null.

Painter: Empty string is null
option.

Required

Whether the column is required.

Values
are:

Yes — Required.

No — (Default)
Not required.

Painter: Required
option.

ShowList

Whether the ListBox portion of the DropDownListBox
displays when the column has focus. A down arrow does not
display at the right end of the DropDownListBox when
ddlb.ShowList is yes.

Values are:

Yes —
Display the list whenever the column has focus.

No
— Do not display the list until the user selects the
column.

Painter: Always Show List
option.

Sorted

Whether the list in the DropDownListBox is
sorted.

Values are:

Yes — The list is
sorted.

No — The list is not
sorted.

Painter: Sorted option.

UseAsBorder

Whether a down arrow displays at the right end of
the DropDownListBox.

Values are:

Yes —
Display the arrow.

No — Do not display the
arrow.

Note that if ShowList is set to Yes, the
column ignores the UseAsBorder property and the arrow never
displays.

Painter: Always Show Arrow
option.

VScrollBar

Whether a vertical scroll bar displays in the
DropDownListBox for long lists.

Values
are:

Yes — Display a vertical scroll
bar.

No — Do not display a vertical scroll
bar.

Painter: Vertical Scroll Bar
option.

Usage

In the painter

Select the control and set the value in the Properties view, Edit
tab, when Style Type is DropDownListBox.

Examples


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