columnname

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

property

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

value

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

AllowEdit

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

Values are:

• Yes – Typing
  is allowed.

• No – (Default) Typing is not allowed.

Call GetChild after setting dddw.AllowEdit
to get a valid reference to the column’s DropDownDataWindow.

Painter: Allow Editing option.

AutoHScroll

Whether the DropDownDataWindow 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.

AutoRetrieve

Whether the DropDownDataWindow data is
retrieved when the parent DataWindow data is retrieved.

Values are:

• Yes – (Default)
  Data is automatically retrieved.

• No – Data must be retrieved separately.

Painter: AutoRetrieve option.

Case

The case of the text in the DropDownDataWindow.

Values are:

• Any – Character
  of any case allowed.

• Upper – Characters converted to uppercase.

• Lower – Characters converted to lowercase.

Call GetChild after setting dddw.Case
to get a valid reference to the column’s DropDownDataWindow.

Painter: Case option.

DataColumn

A string whose value is the name of the
data column in the associated DropDownDataWindow. Value is
quoted.

Call GetChild after setting dddw.DataColumn
to get a valid reference to the column’s DropDownDataWindow.

Painter: Data Column option, visible after selecting a DataWindow.

DisplayColumn

A string whose value is the name of the
display column in the associated DropDownDataWindow. Value is
quoted.

Call GetChild after setting dddw.DisplayColumn
to get a valid reference to the column’s DropDownDataWindow.

Painter: Display Column option, visible after selecting a
DataWindow.

HScrollBar

Whether a horizontal scroll bar displays
in the DropDownDataWindow.

Values are:

• Yes – Display
  a horizontal scroll bar.

• No – Do not display a horizontal scroll
  bar.

Painter: Horizontal Scroll Bar option.

HSplitScroll

Whether the horizontal scroll bar is
split. The user can adjust the split position.

Values are:

• Yes – Split
  the horizontal scroll bar so the user can scroll the display and
  data columns separately.

• No – The horizontal scroll bar is not split.

Painter: Split Horizontal Scroll Bar option.

Limit

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

Painter: Limit option.

Lines

An integer from 0 to 32767 specifying
the number of lines (values) to display in the DropDownDataWindow.
This property does not apply in Web pages because the browser controls
how the DropDownDataWindow displays.

Painter: Lines in DropDown option.

Name

A string whose value is the name of the
DropDownDataWindow associated with the column.

Call GetChild after setting
dddw.Name to get a valid reference to the column’s DropDownDataWindow.

Painter: DataWindow option.

NilIsNull

Whether to set the data value of the
DropDownDataWindow 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.

PercentWidth

An integer specifying the width of the
drop-down portion of the DropDownDataWindow as a percentage of the
column’s width. For example, 300 sets the display width
to three times the column width.

Call GetChild after setting
dddw.PercentWidth to get a valid reference to the column’s
DropDownDataWindow.

Painter: Width of DropDown 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 DropDownDataWindow
displays when the column has focus. A down arrow does not display
at the right end of the DropDownDataWindow when dddw.ShowList is
yes.

Values are:

• Yes – Display
  the list whenever the column has the focus.

• No – Do not display the list until the
  user selects the column.

Painter: Always Show List option.

UseAsBorder

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

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 DropDownDataWindow for long lists.

Values are:

• Yes – Display
  a vertical scroll bar.

• No – Do not display a vertical scroll bar..

Painter: Vertical Scroll Bar option.