[wxPython-users] Re: SetItemPyData() Clarification

[Werner F. Bruhin]

Hi Rich,

Rich Shepard wrote:
> On Mon, 4 Dec 2006, Brian Smith wrote:
>
>> Based on what you say about adding grandchildren and what I read in your
>> original question, I'm not sure if you need to use SetItemPyData() at 
>> all. It sounds like you want something like this:
>>
>> for item in self.appData.polNat:
>>    child = self.polTree.AppendItem( self.natID, item[0] )
>
> Brian,
>
>   Yes! That was it.
>
>   I want to attach the items, but have no associated data with each.
>
>   Now, while on a roll, if I make child into childID[], will this 
> assign a
> unique ID to each child so that one level more could be added to the 
> tree?
>
>   Right now I have:
>
>     root
>      |
>      |->child
>             |
>           |->grandchild
>
> and I need to add one more level, potentially to each grandchild.
The new API doc shows:
TreeItemId      AddRoot(self, text, image, selectedImage, data)
TreeItemId     AppendItem(self, parent, text, image, selectedImage, data)

The return value when adding an item is the TreeItemId.

pseudo code:
root = treectrl.AddRoot(text, image, selectedImage, data)
for child in dbdatachild:
    child = treectrl.AppendItem(root, text, image, selectedImage, data)
    for grandchild in dbdatagrandchild:
       grandchild = treectrl.AppendItem(child, text, image, 
selectedImage, data)
       for grandgrandchild in dbdatagrandchild:
          grandgrandchild = treectrl.AppendItem(grandchild, text, image, 
selectedImage, data)

or if you add later on:
child = treectrl.GetSelection()
    for grandchild in dbdatagrandchild:
       grandchild = treectrl.AppendItem(child, text, image, 
selectedImage, data)

Werner