2层for循环生成 TreeView

合集 - C#(3)

1.Base MYSQL Database create stored procedures resolve the Delimiter error2024-02-22

2.2层for循环生成 TreeView2024-02-28

3.向TreeView添加自定义信息2024-03-07

收起

C# TreeView 利用2层for循环生成，代码如下：
//生成树 treeView1.Nodes.Clear(); //封装了数据库查询方法 MyDS_Grid = MyDataClass.getDataSet("SELECT * FROM table;", "tablename"); for (int i = 0; i < MyDS_Grid.Tables[0].Rows.Count; i++) { //将一级菜单项的名称添加到TreeView组件的根节点中，并设置当前节点的子节点newNode1 TreeNode newNode1 = treeView1.Nodes.Add(MyDS_Grid.Tables[0].Rows[i][1].ToString()); DataSet Area_Grid = MyDataClass.getDataSet("SELECT * FROM table where ID = '"+ MyDS_Grid.Tables[0].Rows[i][0]+"'", "tablename"); for (int j = 0; j < Area_Grid.Tables[0].Rows.Count; j++) { newNode1.Nodes.Add(Area_Grid.Tables[0].Rows[j][2].ToString()); } }
效果图如下：