HYPDM.WinUI.ProductsAndParts.Parts.PartsStructAddForm.tv_struct_init C# (CSharp) Method

        private void tv_struct_init()
        {
            this.tv_struct.Nodes.Clear();
            TreeNode root = new TreeNode("产品及材料", 0, 1);
            TreeNode node1 = new TreeNode("材料", 1, 2); node1.Tag = selectType.Matieral;this.tv_struct.SelectedNode = node1;
            TreeNode node2 = new TreeNode("半成品", 1, 2); node2.Tag = selectType.Parts;
            TreeNode node3 = new TreeNode("产品", 1, 2); node3.Tag = selectType.Product;

            root.Nodes.Add(node1); root.Nodes.Add(node2); root.Nodes.Add(node3);
            this.tv_struct.Nodes.Add(root);
            root.Expand();
        }