class question

[klintsovi]

Hi,

i'm writing a custom treeview object where each node has a reference to a respective dataset row. I'm creatinga subclass as follows

Class NewNode
Inherits TreeNode
public row as datarow

Public Sub New(r as datarow)
MyBase.new()
row = r
Me.Text = r.item("Text")
End Sub
End Class

now for a example i add a row as follows:

public sub addnode(row as datarow)
treeview1.nodes.add(new newnode())
end sub

Now the question is when i build a treeview object using my new node type is datarow object going to be present there as a reference to a dataset.table.row structure or is it going to be a datarow object i.e. if the row element contains alot of information and the tree is going to be quite big i don't want to keep it all inside of the treeview but i want to be able to have a reference to it.

Regards

[HumanCompiler]

I've never actually created one before by you might want to look at creating your own Data Provider on top of the TreeView so that you could just set the DataSource to the DataTable's view and it would generate the tree for you...might be easier, might be harder than what you're trying to do...not sure!

[klintsovi]

No I don't this is possible for the case, this is going to be a windows component which will be included in a parent application.

There are some constraints for the position of the rows to be placed. One of the values of the Row object is a (ID) key value which is unique as well as ParentID value which acts as a foreign key (Circular reference). Any child treenode has a parent Treenode with ID = ParentID key value. Also the data in the table could be unsorted so there is a buffer which is checked after every successful insertion of a new node.

Regards