【转载】TreeView序列化，TreeView串行化，TreeView反序列化 c# winform
转载自http://www.yongfa365.com/Item/WinForm-TreeView-SerializeTree.html
2009年给公司做了个管理系统，里面用到了TreeView，数据有1500多条，加载要10秒钟左右
柳永法(yongfa365)'Blog的特点是：有问题，就要解决，尤其是像这种几十人、上百人使用的系统。
后来使用登录时加载数据，登录后再使用就Clone()的解决方案，感觉不错。
不过，每次调试程序时得等半天，实在不爽。
前些天看到“序列化”这个概念，大意就是把对象保存为一个文件，下次再使用时，反序列化一下就OK了，第二天一大早到公司立马做了个Demo,哇，不错，非常之不错，使用此方法后，根本没有延迟的现象。今天终于应用到这个项目中了，同志们再也不用等那10秒了。
特记录于此，供后人瞻仰
1: using System;
2: using System.IO;
3: using System.Windows.Forms;
4: using System.Runtime.Serialization.Formatters.Binary;
5: using System.Data;
6:
7: //from:http://www.ecjtu.org/forum/read.php?tid-12933.html
8: //反序列化：SerializeTree.TreeViewDataAccess.LoadTreeViewData(treeView1,"C:\\treeview.txt");
9: //序列化： SerializeTree.TreeViewDataAccess.SaveTreeViewData(treeView1,"C:\\treeview.txt");
10:
11:
12: namespace SerializeTree
13: {
14: /// <summary>
15: /// TreeView串行化类
16: /// </summary>
17: public class TreeViewDataAccess
18: {
19: public TreeViewDataAccess() { }
20:
21: /// <summary>
22: /// TreeViewData
23: /// </summary>
24: [Serializable()]
25: public struct TreeViewData
26: {
27: public TreeNodeData[] Nodes;
28:
29: /// <summary>
30: /// 递归初始化TreeView数据
31: /// </summary>
32: /// <param name="treeview"></param>
33: public TreeViewData(TreeView treeview)
34: {
35: Nodes = new TreeNodeData[treeview.Nodes.Count];
36: if (treeview.Nodes.Count == 0)
37: {
38: return;
39: }
40: for (int i = 0; i <= treeview.Nodes.Count - 1; i++)
41: {
42: Nodes[i] = new TreeNodeData(treeview.Nodes[i]);
43: }
44: }
45:
46: /// <summary>
47: /// 通过TreeViewData弹出TreeView
48: /// </summary>
49: /// <param name="treeview"></param>
50: public void PopulateTree(TreeView treeview)
51: {
52: if (this.Nodes == null || this.Nodes.Length == 0)
53: {
54: return;
55: }
56: treeview.BeginUpdate();
57: for (int i = 0; i <= this.Nodes.Length - 1; i++)
58: {
59: treeview.Nodes.Add(this.Nodes[i].ToTreeNode());
60: }
61: treeview.EndUpdate();
62: }
63: }
64:
65: /// <summary>
66: /// TreeNodeData
67: /// </summary>
68: [Serializable()]
69: public struct TreeNodeData
70: {
71: public string Text;
72: public int ImageIndex;
73: public int SelectedImageIndex;
74: public bool Checked;
75: public bool Expanded;
76: public object Tag;
77: public TreeNodeData[] Nodes;
78:
79: /// <summary>
80: /// TreeNode构造函数
81: /// </summary>
82: /// <param name="node"></param>
83: public TreeNodeData(TreeNode node)
84: {
85: this.Text = node.Text;
86: this.ImageIndex = node.ImageIndex;
87: this.SelectedImageIndex = node.SelectedImageIndex;
88: this.Checked = node.Checked;
89: this.Expanded = node.IsExpanded;
90: this.Nodes = new TreeNodeData[node.Nodes.Count];
91:
92: if ((!(node.Tag == null)) && node.Tag.GetType().IsSerializable)
93: {
94: this.Tag = node.Tag;
95: }
96: else
97: {
98: this.Tag = null;
99: }
100: if (node.Nodes.Count == 0)
101: {
102: return;
103: }
104: for (int i = 0; i <= node.Nodes.Count - 1; i++)
105: {
106: Nodes[i] = new TreeNodeData(node.Nodes[i]);
107: }
108: }
109:
110: /// <summary>
111: /// TreeNodeData返回TreeNode
112: /// </summary>
113: /// <returns></returns>
114: public TreeNode ToTreeNode()
115: {
116: TreeNode ToTreeNode = new TreeNode(this.Text, this.ImageIndex, this.SelectedImageIndex);
117: ToTreeNode.Checked = this.Checked;
118: ToTreeNode.Tag = this.Tag;
119: if (this.Expanded)
120: {
121: ToTreeNode.Expand();
122: }
123: if (this.Nodes == null && this.Nodes.Length == 0)
124: {
125: return null;
126: }
127: if (ToTreeNode != null && this.Nodes.Length == 0)
