[SOLVED] ShellTreeView crashes when going to higher directory.
lazarus / 34-Windows

----------------------------------------------------------------------
marsheng · 2022-03-24 00:45

I'm using ShelTreeView to navigate to my files.

Once I have fould the file location, I store the address so I can
reload the location when I run the program again.

for example the directory is

M:\Dynamic\_Production\DX-REM41CBackBlock\

I have an up arrow function to back track the directorys so pressing
the button will load 

M:\Dynamic\_Production\

However, it crashes.

If I start with m:\ for example and then go to the sub directories, I
can then go back to m:\ without any problems so it seem to memorise
where it came from.

If I preload it with M:\Dynamic\_Production\DX-REM41CBackBlock\ is
then crashes like it dosent know where it came from. .

See attached

[Edited to remove Linux from the thread title - this is the Windows
sub-forum]

----------------------------------------------------------------------
dsiders · 2022-03-24 02:27

Quote from: marsheng on March 24, 2022, 01:45:04 amI'm using
ShelTreeView to navigate to my files.

Once I have fould the file location, I store the address so I can
reload the location when I run the program again.

for example the directory is

M:\Dynamic\_Production\DX-REM41CBackBlock\

I have an up arrow function to back track the directorys so pressing
the button will load 

M:\Dynamic\_Production\

However, it crashes.

If I start with m:\ for example and then go to the sub directories, I
can then go back to m:\ without any problems so it seem to memorise
where it came from.

If I preload it with M:\Dynamic\_Production\DX-REM41CBackBlock\ is
then crashes like it dosent know where it came from. .

See attached

The answer is in the error message.

You've set TShellTreeView.Root to a path and it is the lowest
directory in the tree that can be used in navigation. Use the Path
property (public - so not visible in the object inspector) to set the
initial directory. Leave Root blank unless you really do want to limit
navigation to a specific  branch of nodes in the tree.

----------------------------------------------------------------------
marsheng · 2022-03-24 03:12

You are quite correct. Path is not shown in the Object inspector only
root. However when I used the autofill (not sure of the name) when
programming I did find the path option.  I had a mixture of both hence
the problem. Now I only use path, all fine.

Thanks

----------------------------------------------------------------------
wp · 2022-03-24 09:20

Just for completeness, I am attaching a demo in which the path to the
selected node of the shelltreeview is stored in an ini file and
restored when the application runs the next time.

----------------------------------------------------------------------
marsheng · 2022-03-24 10:04

Thanks for the demo. I used an ini file as well.

----------------------------------------------------------------------
marsheng · 2022-03-26 04:33

I new to Linux in therms of programming.

I used my windows program in Linux and found a few differences.
The mask does not appear to work the same.

 ShellListView.Mask:='*.cnc';    

depending on where I put it, lists everything or nothing
and how do I get my network drives (windows bits) to show up in
ShellTreeView ?

----------------------------------------------------------------------
trev · 2022-03-26 06:01

This is the Windows sub-forum. Please start a new topic in the Linux
sub -forum.

Thread locked.