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- Overview
- Initialization code of a programmed List Box control
List Box control linked to a data file or to a query
A List Box or Combo Box control can be used to display the content of a data file or query, to allow a user to select a record, for example. If linked, a List Box control can be initialized with the content of the data file or query: - or automatically no specific code is required to initialize the List Box control field. The options to loop through the data file linked to the control can be defined in the "Content" tab of the control description.
- or by programming You must enter the path code of the data file linked to the List Box control in the initialization code of the List Box control. This method is not recommended.
Note When creating a List Box control, the wizard prompts you for the information you need to create a List Box based on a data file or query. Initialization code of a programmed List Box control If you use a List Box control based on a data file with programmed initialization, you must write the code to loop through the data file in the control initialization code. For example: Initialize a List Box control with customers from the CLIENT data file.
HReadFirst(CUSTOMER, CustName)
WHILE NOT HOut()
ListAdd(LIST_List1, Customer.CustName)
HReadNext(CUSTOMER, CustName)
END
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