asp.net1.1下权限配置系统从设计到实现(四)

继续上次的吧，本来还有点瞌睡:) (昨晚的德国VS哥队够精彩)，还是坚持写完吧.今天说哈 怎么实现Select All  TreeView全部节点的功能？怎么实现展开和折叠自如？
请看：
节点全部选中的实现：

function  SelectAllFunctions()
        {          
             var  tree =  document.getElementById(' <%= tvRoleFunctions.ClientID %> ');
             var  chckAll = document.getElementById(' <%= chSelectAll.ClientID %> ');
             var  NodeArray = tree.getChildren();        
             for ( var  i = 0 ;i < NodeArray.length;i ++ )
            {
                    cNode = NodeArray[i];
                     if (chckAll.checked )
                    {
                         cNode.setAttribute('checked', true );
                         GetSelectedFunctionID(cNode);
                         Checked(cNode);                             
                    }
                     else
                    {
                     cNode.setAttribute('checked', false );
                     UnChecked(cNode);
                     }
            }
                    
        }    

function  Checked(node)
        {
                 var  NodeArray = node.getChildren();
                 for ( var  i = 0 ;i < NodeArray.length;i ++ )
                {
                     childNode = NodeArray[i];
                     childNode.setAttribute('checked', true );
                }
        }

function  UnChecked(node)
        {
                 var  NodeArray = node.getChildren();
                 for ( var  i = 0 ;i < NodeArray.length;i ++ )
                {
                     cNode = NodeArray[i];
                     cNode.setAttribute('checked', false );
                }
            
        }

节点的展开和折叠实现：

// TreeView的节点展开收回
function  ExpandAllNodes()
{
    var  tree = document.getElementById(' <%= tvRoleFunctions.ClientID %> ');
   Expandedall(tree);
}

function  CollospaeAllNodes()
{
  var  tree = document.getElementById(' <%= tvRoleFunctions.ClientID %> ');
 Unexpandedall(tree);
}

function  Expandedall(node)
{
         var  i  =   0 ;
         var  nodes  =   new  Array();
        nodes  =  node.getChildren();
         // alert(nodes.length);
         for (i  =   0 ; i  <  nodes.length; i ++ )
        {
             var  cNode;
            cNode = nodes[i];
            cNode.setAttribute( " expanded " ,  " true " );
             if (parseInt(cNode.getChildren().length)  !=   0  )
            {
                Expandedall(cNode);
            }
        }
}

function  Unexpandedall(node)
{
         var  i  =   0 ;
         var  nodes  =   new  Array();
        nodes  =  node.getChildren();
         for (i  =   0 ; i  <  nodes.length; i ++ )
        {
             var  cNode;
            cNode = nodes[i];
             if (parseInt(cNode.getChildren().length)  !=   0  )
            {
                Unexpandedall(cNode);
            }
            cNode.setAttribute( " expanded " ,  " false " );
        }
}

这个怎么调用就不用说了吧！呵呵........
下次写作预告：
在Firefox下TreeView的父子节点联动实现、节点的全部选择和节点的展开和折叠实现.....

http://jigee.cnblogs.com/archive/2006/06/10/422255.html