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  • TreeView查获节点并选中节点

     

    TreeView查获节点并选中节点如果有多个节点则会继续查找下一个节点 支持关键字搜索

            private void SearchNodes(string SearchText, TreeNode StartNode)
            {
                TreeNode node = null;
                while (StartNode != null)
                {
                    if (StartNode.Text.ToLower().Contains(SearchText.ToLower()))
                    {
                        CurrentNodeMatches.Add(StartNode);
                    }
    
                    if (StartNode.Nodes.Count != 0)
                    {
                        SearchNodes(SearchText, StartNode.Nodes[0]);//Recursive Search 
                    }
                    StartNode = StartNode.NextNode;
                }
            }


    使用

     private List<TreeNode> CurrentNodeMatches = new List<TreeNode>();
            private int LastNodeIndex = 0;
            private string LastSearchText;
    
            
            private void SearchNodeText_Click(object sender, EventArgs e)
            {
                treeView1.Focus();
                string searchText = this.textBox7.Text;/////////////////
    if (String.IsNullOrEmpty(searchText)) { return; } if (LastSearchText != searchText) { //It's a new Search CurrentNodeMatches.Clear(); LastSearchText = searchText; LastNodeIndex = 0; SearchNodes(searchText, treeView1.Nodes[0]); } if (CurrentNodeMatches.Count == 0) MessageBox.Show("无查找记录!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); if (LastNodeIndex >= 0 && CurrentNodeMatches.Count > 0 && LastNodeIndex < CurrentNodeMatches.Count) { TreeNode selectedNode = CurrentNodeMatches[LastNodeIndex]; LastNodeIndex++; this.treeView1.SelectedNode = selectedNode; this.treeView1.SelectedNode.Expand(); this.treeView1.Select(); } else LastNodeIndex = 0; }
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  • 原文地址:https://www.cnblogs.com/xe2011/p/3588289.html
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