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xojo

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 Post subject: Folder tree - quick start please
PostPosted: Fri Sep 30, 2005 9:47 am 
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Joined: Fri Sep 30, 2005 8:46 am
Posts: 3
I am a reasonably efficient in VB and am just making the transition to RB at home - but I would like a nudge in the right direction to get me started(instead of going through the language reference!)

How would I make a two window/frame application that has a collapsable folder-tree on the left and the folder contents (file list) on the right (i.e. a very simplified windows exlorer). I've no doubt it will use the FolderItem class - but that is entirely new to me.

Oh - and none of those pop-up dialog boxes now!


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PostPosted: Fri Sep 30, 2005 9:56 am 
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Joined: Wed Sep 28, 2005 8:39 am
Posts: 9341
Location: St Augusta, MN
You're starting off on a difficult foot because you need to learn how to do hierarchical listboxes for your left-hand pane, which are a more advanced topic.

In terms of the FolderItem stuff, which I believe was your original question, you'd want to loop over all the files on a Volume, so something like this:

// Get the root volume
dim root as FolderItem = Volume( 0 )

// Append it to our stack of items to check
dim stack( -1 ) as FolderItem
stack.Append( root )

// Loop over all the items in the stack and add them
while UBound( stack ) >= 0
// Get an item
dim item as FolderItem = stack.Pop

if not item.Directory then
// If it's a file, add it
DoTheFileAdd( item )
else
// It's a directory, so we need to do something different
DoTheDirectoryAdd( item )

// Add the directory children to the stack, but do
// not resolve shortcuts
for i as Integer = 1 to item.Count
stack.Append( item.TrueItem( i ) )
next i
end if
wend


Note, this code is totally off-the-cuff and untested. But I think you get the idea. Basically, you want to start at some root and loop over all the files. You could also do this with a recursive method if you'd like.


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