在vs2005中C#Windows控件中如何使用treeview控件

TreeNode chNode=new TreeNode("新节点的文本"); 
tvwTree1.currNode.Nodes.Add(chNode); 
或者 
System.Windows.Forms.TreeNode objTreeNode=new TreeNode(); 
objTreeNode.Text="新节点"; 
objTreeNode.Tag="新节点"; 
objTreeNode.ImageIndex=1; 
this.treeView1.Nodes.Add(objTreeNode); 

 数据库应用

public static bool GetData() 
{ 
mBoot = new TreeNode("参数化文件列表"); 
try 
{ 
DataTableCollection dts = TlsHelper.GetTablesFormXml("tlscad.trv"); 
DataTable cdt = dts["Class"]; 
DataTable sdt = dts["SubClass"]; 
int m = cdt.Rows.Count; 
for (int i = 0; i < m; i++) 
{ 
DataRow cdr = cdt.Rows; 
TreeNode cnode = new TreeNode(cdr["Name"].ToString()); 
DataRow[] sdrs = sdt.Select("cid=" + cdr["cid"].ToString()); 
int n = sdrs.Length; 
for (int j = 0; j < n; j++) 
{ 
DataRow sdr = sdrs[j]; 
TreeNode snode = new TreeNode(sdr["Name"].ToString()); 
snode.ImageIndex = 2; 
snode.SelectedImageIndex = 3; 
cnode.Nodes.Add(snode); 
} 
mBoot.Nodes.Add(cnode); 
} 
mBoot.ExpandAll(); 
return true; 
} 
catch 
{ 
return false; 
} 
}//