遞歸為TreeView控件添加節點

private void BindTreeNode(string cityNo, TreeNodeCollection nodes,int level)

{

IEnumerable<AreaTInfo> CityList = areaList.Where(ati => ati.F_AreaSN == cityNo);

foreach (AreaTInfo ati in CityList)

{

TreeNode tn = new TreeNode(ati.AreaName);

tn.Tag = ati.AreaSN;

int templevel = level+1;

BindTreeNode(ati.AreaSN, tn.Nodes,level);

if (level == 0)

{

tn.Expand();

}

nodes.Add(tn);

}

}