# aardio 范例: 编辑树形视图（treeview）控件



```aardio
//编辑树形视图（treeview）控件
import win.ui;
/*DSG{{*/
var winform = win.form(text="树形控件编辑项文本 演示";right=349;bottom=249)
winform.add(
btnSelectAll={cls="button";text="编辑选定项";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;editable=1;exstyle=131072;style=256;z=1}
)
/*}}*/

var hitem = winform.treeview.insertItem( text="程序目录" );
var hSubItem = winform.treeview.insertItem( { text="子目录" },hitem/*父节点*/);

winform.treeview.onnotify = function(id,code,ptr){
	 if(code = 0xFFFFFE35/*_TVN_BEGINLABELEDITW*/ ){  
	 	return false; //允许编辑项
	 }
	 if( code == 0xFFFFFE34/*_TVN_ENDLABELEDITW*/ ){
	 	var dispInfo = winform.treeview.getNotifyDispInfo(code,ptr)
	 	if( dispInfo[["item"]][["text"]] ) { //取消为空
	 		winform.treeview.setItemText( dispInfo.item.hItem, dispInfo.item.text ) ;
	 	}
	 } 
}

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.editLabel( winform.treeview.getSelection() ) 
} 
	
winform.show() 
win.loopMessage();

 


```