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Treeview Refresh

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Nick Jones asked on 15 Mar 2011, 11:10 AM

Hi, I'm having an issue refreshing the data in my treeview. Here is the treeview.

'Build Tree View

Private Sub BuildtvOrgan()

tvOrgan.RelationBindings.Add(New RelationBinding("CompanyDepts", Me.DepartmentBindingSource))

tvOrgan.RelationBindings.Add(New RelationBinding("Department_Employee", Me.EmployeeBindingSource))

tvOrgan.RelationBindings.Item(0).DisplayMember = "DeptName"

tvOrgan.RelationBindings.Item(0).ValueMember = "id"

tvOrgan.RelationBindings.Item(0).DataSource = DepartmentBindingSource

tvOrgan.RelationBindings.Item(1).DisplayMember = "FName"

tvOrgan.RelationBindings.Item(1).ValueMember = "id"

tvOrgan.RelationBindings.Item(1).DataSource = EmployeeBindingSource

tvOrgan.DataSource = CompanyBindingSource

tvOrgan.ValueMember = "id"

SetImages(tvOrgan.Nodes)

tvOrgan.ExpandAll()

End Sub

Now, when I modify the underlying data the treeview doesn't change. It does change if I add data to the underlying tables. If I add a new Company.Department.Employee to the datatables the treeview updates, with an expandall(). However if I change department A to now be in department C instead of B it doesn't move until I reload the app. Any idea's anyone? How can I get the treeview to show changes made to the datasource.

Thanks

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