Codejock Developer Community : Problems with vertical scrollbar

Problems with vertical scrollbar : Hello,it also works when replacing...

Tue, 14 Aug 2012 11:24:43 +0000

Author: farr02
Subject: 3147
Posted: 14 August 2012 at 11:24am

Hello,

it also works when replacing the

pItem->GetGrid()->SetTopIndex(pItem->GetGrid()->GetTopIndex());

line with

pItem->GetGrid()->SetCurSel(pItem->GetIndex());

.
Maybe one can add

m_pGrid->SetCurSel(m_nIndex);

to the library function

CXTPPropertyGridItem::Expand()

This should fix the problem.

Bye
Holger.

Problems with vertical scrollbar : Hello again,when I add the following...

Tue, 14 Aug 2012 10:33:44 +0000

Author: farr02
Subject: 3147
Posted: 14 August 2012 at 10:33am

Hello again,

when I add the following code to the OnGridNotify function of the PropertyGrid sample (together with the above mentioned variable heights items) I get a correct scrollbar behavior:


if(wParam == XTP_PGN_ITEMEXPANDCHANGED)
{
    CXTPPropertyGridItem* pItem = (CXTPPropertyGridItem*)lParam;
    if (pItem)
    {
        pItem->GetGrid()->SetTopIndex(pItem->GetGrid()->GetTopIndex());
    }
}

I don't know what side effects the above code has, but during debugging the PropertyGrid sample I saw that CListBox::SetTopIndex recalculates the scrollbar. So I just gave it a try. It is not what I would tell a good solution but maybe it can be a hint for the CodeJock team on how to improve the library code.

Bye
Holger.

Problems with vertical scrollbar : Hello cpede,sorry for the delay...

Tue, 14 Aug 2012 05:30:52 +0000

Author: farr02
Subject: 3147
Posted: 14 August 2012 at 5:30am

Hello cpede,

sorry for the delay but I have to do some Java programming since a couple of weeks...
No, I haven't found a solution or workaround for the problem you mentioned. To be honest I haven't looked for a solution very hard because it is marked as a minor and hard to detect problem in our software. (And I relied on Oleg;-) But I am still interested in a solution.

Best regards,
Holger.

Problems with vertical scrollbar : Did you ever find a solution for...

Fri, 20 Jul 2012 10:19:11 +0000

Author: cpede
Subject: 3147
Posted: 20 July 2012 at 10:19am

Did you ever find a solution for this problem?

It is even more visible when using the CXTPMarkupListBox control.

-cpede

Problems with vertical scrollbar : Yes, catched it. Actually seems...

Fri, 04 Nov 2005 04:47:31 +0000

Author: Oleg
Subject: 3147
Posted: 04 November 2005 at 4:47am

Yes, catched it.

Actually seems it is standard ListBox control bug - it not refresh scrollbar after SetItemHeight for LBS_OWNERDRAWVARIABLE items.

Trying to find workaround.

Problems with vertical scrollbar : Hello Oleg, I am already using...

Fri, 04 Nov 2005 03:19:23 +0000

Author: farr02
Subject: 3147
Posted: 04 November 2005 at 3:19am

Hello Oleg,
I am already using XTP v. 9.80 together with Visual Studio 6.0.
I can produce the problem as follows:
I add the following code

        pCustom = m_wndPropertyGrid.AddCategory(_T("Height: 72"));
        pItem =pCustom->AddChildItem(new CXTPPropertyGridItem(_T("Variable Height1"), _T("Height 72")));
        pItem->SetHeight(72);

        pCustom = m_wndPropertyGrid.AddCategory(_T("Height: 144"));
        pItem =pCustom->AddChildItem(new CXTPPropertyGridItem(_T("Variable Height2"), _T("Height 144")));
        pItem->SetHeight(144);

to the OnInitDialog-function of CPropertyGridDlg-class (in filePropertyGridDlg.cpp of GridSample, right behind the "CustonButtons"-category).
Then I run the application, enlarge the window a little bit (currentlyit has a height of 510 pixel, width doesn't matter), expand the"Height: 72"-category, after that expand the "Height: 144"-category andget no scrollbar but nearly half of the "Height: 144"-item isinvisible. If you collapse "Height: 72"-category and expand it again ascrollbar occurs but it has a wrong length as you can see the length ofthe bar changing, when clicking on it.

BTW if the window is a little bit bigger (lets say height about 520pixel) no scrollbar occurs when expanding/collapsing "Height:72"-category ("Height: 144"-category remains expanded). But also halfof the "Height: 144"-category is not visible.

Hope this helps you to reproduce the error.

Bye
Holger

Problems with vertical scrollbar : Hmmm... using 9.80 I can't...

Fri, 04 Nov 2005 00:49:45 +0000

Author: Oleg
Subject: 3147
Posted: 04 November 2005 at 12:49am

Hmmm... using 9.80 I can't reproduce it... Can you download evaluation version and check if problem was fixed?

Problems with vertical scrollbar : Hello, I have two problems with...

Thu, 03 Nov 2005 07:39:33 +0000

Author: farr02
Subject: 3147
Posted: 03 November 2005 at 7:39am

Hello,
I have two problems with the vertical scrollbar in the property-grid. Ihave added two more categories to the GridSample. They only hold onevariable height item each. When these categories are expanded andanother category will be expanded so that the visible grid becomesbigger than the corresponding window the vertical scrollbar does notappear. The image below shows this problem:

The second problem may have the same cause as the first one. Afterexpanding another category the vertical scrollbar appears but itslength is incorrect. When I click it, the scrollbar gets shorter. Seethe second picture.

It looks like a problem in calculating the correct height of the grid. I hope someone can help me.

Best regards,
Holger