Problem with the visiblity of wxFilePickerCtrl in wxDevC++ Topic is solved

[jayarathina]

Hi,
I am using wxDevC++ 7.4.2.569 I created a new Form project and added the following in this order:

1. wxPanel
2. wxFlexGridSizer
3. wxStaticText
4. wxFilePickerCtrl

But when I run the program, the output I get is:

As you can see the browse button is hidden. But when I re-size the window during execution, I find the file picker to be visible with the browse button as expected.

I tried Refresh() and Update() after Center(), but it did not work. Any idea why this happens? and how to make it appear on start itself?

[jgrzybowski]

It is quite possible, that the problem is in set up parameters of wxFlexGridSizer, not in wxFilePickerCtrl. Or wxPanel is created too small for showing whole picker control. For test try to use wxBoxSizer instead of wxFlexGridSizer without any panels:
1)New wxFrame;
2)Put wxBoxSizer which should fulfill whole frame;
3)Put your controls on selected wxBoxSizer
Regards, Jarek

[jayarathina]

It is quite possible, that the problem is in set up parameters of wxFlexGridSizer, not in wxFilePickerCtrl. Or wxPanel is created too small for showing whole picker control. For test try to use wxBoxSizer instead of wxFlexGridSizer without any panels:
1)New wxFrame;
2)Put wxBoxSizer which should fulfill whole frame;
3)Put your controls on selected wxBoxSizer
Regards, Jarek

I tried wxBoxSizer before and it did make the "browse" button visible. But my form has more elements, and I don't want them to be horizontally (or vertically ) aligned one by one. That will not look good.

There is a lot for space for wxPanel and I don't think it is small. I don't have to re-size the window to a great extent to make it visible, rather just move for few pixels and then back to original size, it refreshes and shows the browse button.

What option of wxFlexGridSizer might affect this? Is there any other option available?

[jgrzybowski]

I do not have enough experience in wxFlexGridSizer, but wxPanel in your solution seems to be not necessary. If someone has invented grid sizer to arrange controls in grid/table view, probably additional panels are not needed? More complicated structure of controls can be also created using several panels each with box sizer, see the picture from wxWidget book in last post from this topic:
http://forums.wxwidgets.org/viewtopic.php?f=28&t=37361
Regards, Jarek

[jayarathina]

I do not have enough experience in wxFlexGridSizer, but wxPanel in your solution seems to be not necessary. If someone has invented grid sizer to arrange controls in grid/table view, probably additional panels are not needed? More complicated structure of controls can be also created using several panels each with box sizer, see the picture from wxWidget book in last post from this topic:
http://forums.wxwidgets.org/viewtopic.php?f=28&t=37361
Regards, Jarek

I am a Java programmer, I used the Panel with the same mentality as in Java. Any way removing wxPanel did help, thanks a lot.