C# TreeView菜单，MenuStrip菜单递归动态生成例子

private DataTable ModuleTable;

private void FrmMain_Load(object sender, EventArgs e)
{

try
{
InitMenu();
}
catch
{
MenuTree.Nodes.Clear();
}

｝

/// <summary>
/// 初始化菜单
/// </summary>
protected void InitMenu()
{
DataSet ds= new DataSet();
ds=bll.GetModuleTypeList("");
RGP.BLL.RGP_Modules bll = new RGP.BLL.RGP_Modules();
ModuleTable = ds.Tables[0];  //取得所有数据得到DataTable

//加载TreeView菜单
LoadNode(MenuTree.Nodes, "0");

//加载MenuStrip菜单
ToolStripMenuItem topMenu = new ToolStripMenuItem();
LoadSubMenu(ref topMenu, 0);

}

/// <summary>
/// 递归创建TreeView菜单(模块列表)
/// </summary>
/// <param name="node">子菜单</param>
/// <param name="MtID">子菜单上级ID</param>
protected void LoadNode(TreeNodeCollection node, string MtID)
{
DataView dvList = new DataView(ModuleTable);
dvList.RowFilter = "ModuleTypeSuperiorID=" + MtID;  //过滤父节点
TreeNode nodeTemp;
foreach (DataRowView dv in dvList)
{
nodeTemp = new TreeNode();
nodeTemp.Tag = dv["ModuleTypeID"].ToString() + ",0";
nodeTemp.Text = dv["ModuleTypeName"].ToString();  //节点名称
node.Add(nodeTemp);  //加入节点
//nodeTemp.SelectAction = TreeNodeSelectAction.Expand;
//nodeTemp.Expanded = false;

this.LoadNode(nodeTemp.Nodes, nodeTemp.Tag.ToString().Split(',')[0]);  //递归

//增加子模块分类
RGP.BLL.RGP_Modules bll = new RGP.BLL.RGP_Modules();
DataSet Module = bll.GetModuleList("ModuleTypeID=" + dv["ModuleTypeID"].ToString());
int i = 0;
foreach (DataRow child_dr in Module.Tables[0].Rows)
{
if ((UserBox.GetUserTable().IsLimit == true
|| (child_dr["ModuleDisabled"].ToString().ToLower() == "true"
&& UserHandle.ValidationModule(int.Parse(child_dr["ModuleID"].ToString()), RGP_Tag.Browse)))
&& child_dr["IsMenu"].ToString().ToLower() == "true")
{
TreeNode ChildNode = new TreeNode(child_dr["ModuleName"].ToString());
ChildNode.Tag = child_dr["ModuleID"].ToString() + ",1";
ChildNode.Expand();
nodeTemp.Nodes.Add(ChildNode);
i++;
}
}

//删除不必要的模块分类节点。
if (i == 0)
{
MenuTree.Nodes.Remove(nodeTemp);
}
}
}

/// <summary>
/// 递归创建MenuStrip菜单(模块列表)
/// </summary>
/// <param name="topMenu">父菜单项</param>
/// <param name="ItemID">父菜单的ID</param>
private void LoadSubMenu(ref ToolStripMenuItem topMenu, int MtID)
{
DataView dvList = new DataView(ModuleTable);
//过滤出当前父菜单下在所有子菜单数据(仅为下一层的)
dvList.RowFilter = "ModuleTypeSuperiorID=" + MtID.ToString();
ToolStripMenuItem subMenu;
foreach (DataRowView dv in dvList)
{
//创建子菜单项
subMenu = new ToolStripMenuItem();
subMenu.Text = dv["ModuleTypeName"].ToString();
//判断是否为顶级菜单
if (MtID == 0)
{
this.SysMainMenu.Items.Add(subMenu);
}
else
{
topMenu.DropDownItems.Add(subMenu);
}

//递归调用
LoadSubMenu(ref subMenu, Convert.ToInt32(dv["ModuleTypeID"]));

//增加子模块分类
RGP.BLL.RGP_Modules bll = new RGP.BLL.RGP_Modules();
DataSet Module = bll.GetModuleList("ModuleTypeID=" + dv["ModuleTypeID"].ToString());
int i = 0;
foreach (DataRow child_dr in Module.Tables[0].Rows)
{
if ((UserBox.GetUserTable().IsLimit == true
|| (child_dr["ModuleDisabled"].ToString().ToLower() == "true"
&& UserHandle.ValidationModule(int.Parse(child_dr["ModuleID"].ToString()), RGP_Tag.Browse)))
&& child_dr["IsMenu"].ToString().ToLower() == "true")
{
ToolStripMenuItem ChildMenu = new ToolStripMenuItem(child_dr["ModuleName"].ToString());
subMenu.DropDownItems.Add(ChildMenu);
i++;
}
}

//删除不必要的模块分类节点。
if (i == 0)
{
this.SysMainMenu.Items.Remove(subMenu);
}
}
}