I have very similar grids on two pages of my form.

The classes for each of the two grids are defined in a VCX library. The classes for the columns, headers, textboxes, and editboxes used by the grids are defined in a PRG file. Each grid uses its own column, header, textbox, and editbox classes.

I set up the grids and their columns using the form designer.

I run into very strange behavior when I run the form and go from the page containing one grid to the page containing the other grid, and then back to the first page. When I initially go to the first page, the grid on that page works just fine. I then go to the 2nd page, and the grid there works fine too. However, when i go back to the first page, the grid doesn't work properly. For example, I get error messages from my refresh code that is assigning the controlsource properties of the columns. The messages say that colFilename is undefined. If I run this under the debugger and put a breakpoint in the Refresh method of the page I can see that the Columns collection is empty.

The mirron thing happens if I go to the 2nd page first, then to the 1st page, and back to the 2nd page. In this case, the columns in the grid of the 2nd page are missing.

Any thoughts?

Thanks,
Jim