Binding a Combo Box control to an item

ONLINE HELP
WINDEV, WEBDEV AND WINDEV MOBILE

Version:

Home | Sign in | English

Item characteristics
Handling the item and the Combo Box control
To update the Combo Box control with the value stored in the item:
To update the item with the index of the element selected in the Combo Box control:

WINDEV

WEBDEV

WINDEV Mobile

Others

See also

The Combo Box control

Binding a Combo Box control to an item

Item characteristics

A Combo Box control can be bound to an item in a data file, query, etc.

The following types of items can be bound to a Combo Box control:

Text,
Numeric,
Date or Time,
Radio Button, List Box, Combo Box.

The item bound to the Combo Box control will contain the index of the element selected in the control.

Remark: When an item is bound to a Combo Box control, the content of the Combo Box item is the same for all the data file records. For example, if the Combo Box item contains the options "Paid", "In progress", and "Pending", this content will be the same for all records.

The contents of the Combo Box control can be:

entered directly in the data model editor,
entered in the window or page editor,
assigned in the code (with ListAdd).

Handling the item and the Combo Box control

To update the Combo Box control with the value stored in the item:

1st case: the controls in the window or page are bound to items in a data file
All the controls bound to an item in the data file (or a related file) will be updated by:

FileToScreen in WINDEV or WINDEV Mobile.
FileToPage in WEBDEV.

2nd case: the controls in the window or page are not bound to items in a data file
A value must be assigned to each control using the following syntax:

To update the item with the index of the element selected in the Combo Box control:

1st case: the controls in the window or page are bound to items in a data file
All the items in the data file (or a related file) that are bound to a control in the window or page will be updated by:

ScreenToFile in WINDEV or WINDEV Mobile.
PageToFile in WEBDEV.

2nd case: the controls in the window or page are not bound to items in a data file
The value of each control must be assigned to each item using the following syntax: