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treeview的节点的展开和收缩

2008-10-12 19:42 211 查看
public void Expandnodes(Microsoft.Web.UI.WebControls.TreeNode node,bool Expand)

{

foreach(Microsoft.Web.UI.WebControls.TreeNode n in node.Nodes)

{

if(n.Nodes.Count>0)

{

n.Expanded = Expand;

Expandnodes(n, Expand);

}

}

}

public void Expandnodes(Microsoft.Web.UI.WebControls.TreeView treeview, bool Expand)

{

foreach(Microsoft.Web.UI.WebControls.TreeNode n in treeview.Nodes)

{

if(n.Nodes.Count>0)

{

n.Expanded = Expand;

Expandnodes(n, Expand);

}

}

}

Expandnodes(Me.TreeView1, true)展开全部节点,Expandnodes(Me.TreeView1, false)折叠全部节点
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