Add Child Nodes to Treeview dynamically

Hello,

I have the following code which checks for the value of the 'cc_supplier_status' column for each of the rows in my table. If the state is 0, I need a child node to be added to a node named 'Inactive Suppliers' in my tree view (tvw_Supplier) with it's text being the value of the 'cc_supplier_name' value for the same row.

If the state is 1, a child node is to be added to a node named 'Active Suppliers'.

If the state is 2, a child node is to be added to a node named 'Pending Suppliers'.

The code I have now just filters out the status value for each row, and performs a select case on it. I need to know how I'd add a new child node to the parent nodes mentioned above.

Code:

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        Dim totalRows As Integer = Me.CCSuppliersDataSet.tblSuppliers.Rows().Count()

        Dim counter As Integer
        For Each row As CCSuppliersDataSet.tblSuppliersRow In Me.CCSuppliersDataSet.tblSuppliers.Rows()

            Dim name As String = row.cc_supplier_name.ToString()
            Dim status As Integer = row.cc_supplier_status()
            Select Case status
                Case 0
                    ' Add a node who's text is the value of 'name' to the
                    ' Inactive Suppliers node

                Case 1
                    ' Add a node who's text is the value of 'name' to the
                    ' Active Suppliers node

                Case 2
                    ' Add a node who's text is the value of 'name' to the
                    ' Pending Suppliers node

            End Select

            counter = counter + 1

            Dim percentage As Integer = CInt((counter / totalRows) * 100)
            Me.bgwk_Supplier_Nodes.ReportProgress(percentage)

        Next

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Thanks.

Add the three parent nodes, but keep a reference to them. In your for loop and select case, access the Nodes property of the appropriate parent node and add another node. You can add the nodes via the Add method.

Quote:

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Originally Posted by ForumAccount

Add the three parent nodes, but keep a reference to them. In your for loop and select case, access the Nodes property of the appropriate parent node and add another node. You can add the nodes via the Add method.

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Hello,

The parent nodes have already been added in the designer.

The problem I have is adding the nodes within a background worker. I'm thinking I'm going to need the Invoke() method, as I'm adding nodes in a different thread.