[Gambas-user] How to search for an item in a treeview
M0E Lnx
m0e.lnx at ...626...
Fri Mar 28 14:23:06 CET 2008
mmm.. I'm not sure what's what I want to do..
I've done this before using a listview.. but the listview component I
can understand more easily the problem is that it doesn't offer
collapsable parent entries.
that's why I'd rather wipe out the treeview, and repopulate it.
On 3/28/08, Robert Rowe <robert.c.rowe at ...626...> wrote:
> Why don't you add a second treeview that is initially hidden. As you
> find your results add them to the hidden treeview. When the search
> completes, show the hidden treeview and hide the original one.
>
>
> Robert Rowe
>
>
> M0E Lnx wrote:
> > Sorry for not being too specifc.
> >
> > I'm trying to allow the user to search for specific items (initially
> > listed in the treeview)
> >
> > so First, I want to populate the treeview with a massive collection
> > (already done)
> > Need to offer a search feature (this needs to find stuff in the
> > treeview (you already did))
> > Need to display ONLY the results of the search in the treeview.
> >
> > There will be a button that the user can hit to restore the treeview
> > to the original content (full list)
> >
> >
> >
> > On 3/27/08, Stephen Bungay <sbungay at ...981...> wrote:
> >
> >> Yes, your original post did not ask for anything to be repopulated..
> >> indeed, nothing has been removed from the treeview so you don;t have to
> >> repopulate it using this method.
> >> Could you be a little more clear on what it is you are trying to
> >> accomplish? We have the find done.. whats with the repopulate?
> >>
> >>
> >> M0E Lnx wrote:
> >> > OK... I can see how that will find the hits... but I dont see how it
> >> > will re-populate it using only the items that were found.
> >> >
> >> > I guess I must have misphrased that in the first place
> >> >
> >> >
> >> > On 3/26/08, Stephen Bungay <sbungay at ...981...> wrote:
> >> >> Ok try this. It is based on a save routine that I used in an
> >> >> edutainment application I developed about a year ago... I pulled my hair
> >> >> out trying to come up with a good recursive routine to do walk the tree,
> >> >> and failed miserably at it. This treeview did not lend itself well to a
> >> >> recursive walk through... but there is another SIMPLER way, Benoit
> >> >> pointed me in the right direction (Thanks Benoit), and now lets pay it
> >> >> forward.
> >> >>
> >> >> Create a test project with three controls on it. Don't rename the
> >> >> controls, just use the default names. The controls to put on FMAIN are a
> >> >> button, a treeview and a TextArea.
> >> >> Now copy and paste this code into FMain
> >> >>
> >> >> PUBLIC Y AS String
> >> >>
> >> >> PUBLIC SUB Form_Open()
> >> >>
> >> >> WITH TreeView1
> >> >> .Add("A", "Item A")
> >> >> .Add("A1", "Item A1",, "A")
> >> >> .Add("B", "Item B")
> >> >> .Add("B1", "Item B1",, "B")
> >> >> .Add("B1.1", "Item B1.1",, "B1")
> >> >> .Add("C", "Item C")
> >> >> .Add("D", "Item D")
> >> >> .Add("D1", "Item D1",, "D")
> >> >> .Add("E", "Item E")
> >> >> END WITH
> >> >>
> >> >> END
> >> >>
> >> >> PUBLIC SUB Button1_Click()
> >> >> WalkTree(TreeView1)
> >> >> END
> >> >>
> >> >>
> >> >> PRIVATE SUB WalkTree(pTreeView AS TreeView)
> >> >> DIM sText AS String
> >> >>
> >> >> pTreeView.MoveFirst()
> >> >>
> >> >> REPEAT
> >> >> sText = sText & pTreeView.Item.Key & ", " & "'" &
> >> >> pTreeView.Item.Text & "'" & "\n"
> >> >> pTreeView.Item.Expanded = TRUE
> >> >> UNTIL pTreeView.MoveBelow()
> >> >>
> >> >> TextArea1.Text = sText
> >> >>
> >> >> END
> >> >>
> >> >>
> >> >> When you push the button it will iterate down through the tree and
> >> >> push the text of each node (and it's key) to a string, After the tree
> >> >> has been 'walked' the string will be dumped to the Text area.
> >> >> Use this to do a search on each ode as you come to it.
> >> >> Job done.
> >> >>
> >> >> Steve.
> >> >>
> >> >>
> >> >> M0E Lnx wrote:
> >> >> > I have a treeview populated with lots of entries... I'm trying to
> >> >> > provide a function that would search within the contents of that
> >> >> > treeview for a specific string.
> >> >> > Can anyone think of a way to do that?
> >> >> >
> >> >> > I've been trying the FIND method in the treeview, but it's quite
> >> >> > different from other find methods...
> >> >> >
> >> >>
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