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Scroll – PB Docs 150 – PowerBuilder Library

Scroll – PB Docs 150

Scroll method (DataWindows)

Description

Scrolls the edit control of a DataWindow a specified number
of lines up or down.

Controls

DataWindow type

Method applies to

PowerBuilder

DataWindow control

Web ActiveX

DataWindow control

Syntax

[PowerBuilder]

[Web ActiveX]

Argument

Description

dwcontrol

A reference to a DataWindow control. Scroll affects
the edit control of the DataWindow.

number

A value specifying the direction and
number of lines you want to scroll. To scroll down, use a positive
value. To scroll up, use a negative value.

Return Values

Scroll returns the line number of the first
visible line in dwcontrol if it succeeds. Scroll returns –1
if an error occurs. If any argument’s value is null, Scroll returns
null.

Usage

If the number of lines left in the list is less than the number
of lines that you want to scroll, then Scroll will
scroll to the beginning or end, depending on the direction specified.

Examples

This statement scrolls mle_Employee down
4 lines:

This statement scrolls mle_Employee up 4
lines:

See Also

The following related methods implement scrolling in a DataWindow
or a PowerBuilder RichTextEdit control:


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