How FoxPro Passes Parameters to a Form

ID: Q126953

The information in this article applies to:

Microsoft Visual FoxPro for Windows, version 3.0

SUMMARY

This article explains how to pass parameters to a form built with the Form Designer. Parameters are passed to either the Init or the Load method of a form or form set.

MORE INFORMATION

To pass a parameter to a form built with the Form Designer, add a WITH statement to the DO FORM command. For example:


   DO FORM frmtest WITH cLastname

The value of the WindowType property determines if a parameter is received by either the Load or the Init method of a Form.

WindowType = 1 or WindowType= 0

Parameters are passed to the Init of the form or the form set. The parameter is visible to the Init and all of the methods that the Init calls. Once the method associated with the Init event is completed, the variable is released. The parameter is private.

To scope a parameter to a form, add a property at the form level and assign the value of the parameter to the member variable.

For more information on how to add a property to a form, refer to the creating New Properties and Methods paragraph in the Creating Forms chapter of the Developer's Guide. For additional information about the syntax associated with passing parameter, refer to the Managing Forms paragraph in the Creating Forms chapter of the Developer's Guide.

WindowType = 2 or WindowType= 3

These settings are available to form sets only. A page frame is necessary to access the WindowType values of 2-READ or 3-READ MODAL. This functionality emulates a READ, and has been implemented for backwards compatibility. When the WindowType = 2 or WindowType = 3, the parameters are received by the LOAD method of the form set. They are scoped to the form set.

Additional query words: VFoxWin screen

Keywords : FxtoolFormdes
Version : 3.00
Platform : WINDOWS
Issue type :