# aardio 范例: 遍历树形视图（treeview）控件



```aardio
//遍历树形视图（treeview）控件
import win.ui;
/*DSG{{*/
var winform = win.form(text="treeview控件遍的节点";right=349;bottom=249)
winform.add(
btnSelectAll={cls="button";text="全选";left=172;top=206;right=271;bottom=232;z=2};
treeview={cls="treeview";left=22;top=17;right=326;bottom=190;bgcolor=0xF0FBFF;edge=1;exstyle=131072;style=256;z=1}
)
/*}}*/

//请在窗体设计器 treeview 控件属性面板，请用“显示复选框（对应 checkbox 属性）”
var hitem = winform.treeview.insertItem( text="程序目录" );
var hSubItem = winform.treeview.insertItem( { text="子目录" },hitem/*父节点*/);
 
hitem = winform.treeview.insertItem( { 
        text = "children数组指定子节点"; 
        children = { 
            { text = "子节点"  };
            { text = "子节点2" };
        }
} ) 
  
winform.btnSelectAll.oncommand = function(id,event){ 
 	
	winform.treeview.enum(
		function(hItem,parent){				
			winform.treeview.setChecked(hItem,true)
		}
	)
} 
	
winform.show() 
win.loopMessage();

 


```