A grid on a parent form may be blank in a Visual FoxPro 9.0-based application (900096)

SYMPTOMS

In a Microsoft Visual FoxPro 9.0-based application, a grid on a parent form may be blank. This problem occurs when the following conditions are true:

You upgrade the application to Visual FoxPro 9.0.
The application has a parent form that has page frames, and the page frames contain a grid.
You either close the child form or resize the form.

CAUSE

This problem may occur when the grid columns have functions or when you run the ControlSource method on the child form, and the child form does not redraw the grid correctly.

WORKAROUND

To work around this problem, follow these steps:

Redraw the grid after the child form is closed to add a GridRefresh() method to the grid class. To do this, use code that is similar to the following.
```
local lnSaveLockScreen
	lnSaveLockScreen = ThisForm.LockScreen 
	ThisForm.LockScreen = .t.
	This.Refresh()
	ThisForm.LockScreen = lnSaveLockScreen
```
Bind both the form activate event and the form resize event to the grid.Init method by using code that is similar to the following.
```
BindEvent(thisform, "activate", ;
	this, "gridrefresh",1)

 BindEvent(thisform, "resize", ;
	this, "gridrefresh",1)
```

A grid on a parent form may be blank in a Visual FoxPro 9.0-based application (900096)

SYMPTOMS

CAUSE

WORKAROUND

STATUS