Selection and drag'n'drop (move)

[Caterp!llar]

Steps to reproduce:
1) Select all files in panel
2) Move cursor (with arrows) on top of the selection and deselect several files with INSERT
3) Try to move selected files with mouse (holding SHIFT)
Result:
Deselected files became selected.

TC 8.0b12 x64 on Win7

[Flint]

Confirm, but not always…

[Valentino]

I also noticed this effect several times.

[MVV]

Caterp!llar, if you click selected file, hold Shift and then click deselected one, TC selects band, all is OK here.

You should press Shift after starting dragging. Read here.

[Flint]

MVV
No-no, the reported issue is reproduced even when you start dragging by a selected file. Selecting a group by Shift+click is not a case here.

[ghisler(Author)]

This isn't a bug, when you hold down Shift while starting the drag.

2Flint
Not confirmed, it doesn't happen when I press Shift after starting the drag.

[Flint]

Not confirmed, it doesn't happen when I press Shift after starting the drag.

Neither here, I reproduced the issue only when pressing Shift before starting the drag. But it's not about additional selecting of group of files by Shift+click.

Video (recorded in XP x64; don't pay attention to black square around mouse cursor, it's a problem of recording in a virtual machine):
• Video/EXE (player/codec included)
• Video/AVI (needs MSU Screen Capture Lossless Codec)

You can see that all the upper files are selected, though the file I click with Shift is located below the current cursor position.

[MVV]

Flint, confirmed in 64-bit TC only, Win7x64.

[ghisler(Author)]

Ah, I see - so the problem doesn't have to do anything with Drag&Drop, but with selection by Shift+Click after selecting with Insert! Indeed this doesn't work correctly in 64-bit, but does in 32-bit. The problem is that the Insert key doesn't trigger a "Change" event in Lazarus, but does in Delphi. I will add a workaround.

[Flint]

Seems to be fixed in 8.0β13.

[ghisler(Author)]

Thanks, can anyone confirm it?

[Caterp!llar]

Fixed in x64 beta13

[ghisler(Author)]

Thanks!