<Source>.Version (Function)

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Incrementing the version number of the data file
Multi-file queries

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<Source>.Version (Function)

In french: <Source>.Version

Not available with this kind of connection

Determines:

whether the content of a data file was modified.
whether the content of a data file used by a query was modified.

This function is used to detect the modifications made to a data file shared among several programs. If a modification is detected, you have the ability to refresh the data displayed in the window or in the page.

Example

NumVer = Client.Version()

// Première évaluation de la version du fichier de données
NumVer is int
NumVer = Client.Version()
// Traitements
// Deuxième évaluation de la version du fichier de données
IF NumVer <> Client.Version() THEN
	Info("Le fichier de données Client a été modifié.")
END

Syntax

<Result> = <Source>.Version()

<Result>: Integer

Version number of the data file.
The version number is always equal to 0.

<Source>: Type corresponding to the specified source

Name of the data file used.
Name of the query used.
The data file used must be an HFSQL data file. Otherwise, the version number is always equal to 0.

Remarks

Incrementing the version number of the data file

When creating the data file, the version number is initialized to 1. This number is incremented whenever the file content is modified (<Source>.Add, <Source>.Write, <Source>.Modify, <Table>.Save, <Table>.Delete, <Source>.Free, <Source>.Delete, <Source>.Cross). The number is incremented if the function is successful.

Note The function <Source>.Version function can be used on both indexed and non-indexed data files.

Multi-file queries

In the case of a multi-file query, <Source>.Version returns the sum of the <Source>.Version of all data files used in the query.

Component: wd300hf.dll