Csharp: Treeview check list value
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Csharp: Treeview check list value
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1 /// <summary>
2 /// 選擇的節點
3 /// 塗聚文 20121116
4 /// 捷為工作室
5 ///
6 /// </summary>
7 /// <param name="sender"></param>
8 /// <param name="e"></param>
9 private void treeView1_AfterCheck(object sender, TreeViewEventArgs e)
10 {
11 #region 4
12
13 if (e.Action != TreeViewAction.Unknown)
14 {
15
16 //Event call by mouse or key-press
17
18 SetNodeCheckStatus(e.Node, e.Node.Checked);
19
20 }
21 #endregion
22
23
24 }
25 /// <summary>
26 /// 選擇的節點
27 /// </summary>
28 /// <param name="tn"></param>
29 /// <param name="Checked"></param>
30 private void SetNodeCheckStatus(TreeNode tn, bool Checked)
31 {
32
33 if (tn == null) return;
34
35 // Check children nodes
36
37 foreach (TreeNode tnChild in tn.Nodes)
38 {
39
40 tnChild.Checked = Checked;
41
42 SetNodeCheckStatus(tnChild, Checked);
43
44 }
45
46 // Set parent check status
47
48 TreeNode tnParent = tn;
49
50 int nNodeCount = 0;
51
52 while (tnParent.Parent != null)
53 {
54
55 tnParent = (TreeNode)(tnParent.Parent);
56
57 nNodeCount = 0;
58
59 foreach (TreeNode tnTemp in tnParent.Nodes)
60
61 if (tnTemp.Checked == Checked)
62
63 nNodeCount++;
64
65 if (nNodeCount == tnParent.Nodes.Count)
66
67 tnParent.Checked = Checked;
68
69 else
70
71 tnParent.Checked = false;
72
73 }
74
75 }
76
77
78 #region 選擇的節點
79 /// <summary>
80 /// http://www.codeproject.com/Questions/196856/C-NET-Treeview-Node-Checked
81 /// http://msdn.microsoft.com/en-us/library/system.windows.forms.treeview.aftercheck.aspx
82 /// </summary>
83 /// <param name="treeNode"></param>
84 /// <param name="nodeChecked"></param>
85 public void CheckAllChildNodes(TreeNode treeNode, bool nodeChecked)
86 {
87 foreach (TreeNode node in treeNode.Nodes)
88 {
89 node.Checked = nodeChecked;
90 if (node.Nodes.Count > 0)
91 {
92 this.CheckAllChildNodes(node, nodeChecked);
93 }
94 }
95 }
96 #endregion
97 /// <summary>
98 /// 顯示選擇的節點
99 /// </summary>
100 /// <param name="sender"></param>
101 /// <param name="e"></param>
102 private void button1_Click(object sender, EventArgs e)
103 {
104
105 DataTable dt = new DataTable();
106 dt.Columns.Add("Uid", typeof(Guid));
107 dt.Columns.Add("ID", typeof(int));
108 dt.Columns.Add("Name", typeof(string));
109 dt.Columns.Add("ParentID", typeof(int));
110
111 List<TreeNode> selectedNodes = new List<TreeNode>();
112 GetSelectedTreeNode(treeView1.Nodes, selectedNodes);
113 int i = 0;
114 foreach (TreeNode node in selectedNodes)
115 {
116 if (!string.IsNullOrEmpty(node.ToolTipText))
117 {
118 dt.Rows.Add(new Guid(node.ToolTipText), node.Name, node.Text,node.Parent.Name);
119 }
120 i++;
121 }
122
123
124 dataGridView1.DataSource = dt;
125
126
127
128
129
130 }
131 /// <summary>
132 /// 選擇的節點的值
133 /// </summary>
134 /// <param name="nodes"></param>
135 /// <param name="selectedNodes"></param>
136 void GetSelectedTreeNode(TreeNodeCollection nodes, List<TreeNode> selectedNodes)
137 {
138 foreach (TreeNode node in nodes)
139 {
140 if (node.Checked)
141 {
142 selectedNodes.Add(node);
143 }
144 GetSelectedTreeNode(node.Nodes, selectedNodes);
145 }
146 }
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轉載于:https://www.cnblogs.com/geovindu/archive/2012/11/16/2773713.html
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