尝试以下代码处理我的项目。将以下代码放在您的母版页中或放置菜单控件的位置。我在这里使用了List。您也可以使用相同的代码来使用数据表。 PopulateChildMenuItems 函数用于递归添加子菜单项



protected void Page_Load（object sender，EventArgs e）

{

if（HttpContext.Current.Session [UserDetails] == null）

{

Response.Redirect（〜/ Login.aspx）;

}

if（！this.IsPostBack）

{

populateMenuItems（） ;

}

}





protected void populateMenuItems（）

{

userDetails =（UserBAL）（HttpContext.Current.Session [UserDetails]）;



List&lt ; menubal> menuItems = CacheMaster.getMenuList（userDetails.UserID）; //MenuDAL.getMenuList(userDetails.UserID）;



List< menubal> parentMenuItems = menuItems.FindAll（x => x.ParentMenuID == 0）;





foreach（parentMenuItems中的MenuBAL项目）

{

MenuItem mnuParent = new MenuItem（）;

//mnuParent.Target = item.MenuURL;

mnuParent.Text = item.MenuName;

mnuParent.NavigateUrl = item.MenuURL;

mnuParent.Value = item.MenuID.ToString（）;



populateChildItems（ref mnuParent，menuItems）;



mnuMain.Items.Add（mnuParent）;

}

}



protected void populateChildItems（ref MenuItem parentMenuItem，List< menubal> menuList）

{

Int32 parentMenuID = Convert.ToInt32（parentMenuItem.Value）;

List< menubal> childItems = menuList.FindAll（x => x.ParentMenuID == parentMenuID）;



foreach（childItems中的MenuBAL项目）

{

MenuItem childMenu = new MenuItem（）;



childMenu.Text = item.MenuName;

// childMenu.Target = item.MenuURL;

childMenu.NavigateUrl = item.MenuURL;

childMenu.Value = item.MenuID.ToString（）;



populateChildItems（ref childMenu，menuList）;



parentMenuItem.ChildItems.Add（childMenu）;

}

}

try the below code its working on my projects. Put the below code in your master page or where ever you have the menu control placed. I have used List here. You can use data table also using the same code. PopulateChildMenuItems function is called for recursively adding child menu items

protected void Page_Load(object sender, EventArgs e)
{
if (HttpContext.Current.Session["UserDetails"] == null)
{
Response.Redirect("~/Login.aspx");
}
if (!this.IsPostBack)
{
populateMenuItems();
}
}


protected void populateMenuItems()
{
userDetails = (UserBAL)(HttpContext.Current.Session["UserDetails"]);

List<menubal> menuItems = CacheMaster.getMenuList(userDetails.UserID); //MenuDAL.getMenuList(userDetails.UserID);

List<menubal> parentMenuItems = menuItems.FindAll(x => x.ParentMenuID == 0);


foreach (MenuBAL item in parentMenuItems)
{
MenuItem mnuParent = new MenuItem();
//mnuParent.Target = item.MenuURL;
mnuParent.Text = item.MenuName;
mnuParent.NavigateUrl = item.MenuURL;
mnuParent.Value = item.MenuID.ToString();

populateChildItems(ref mnuParent, menuItems);

mnuMain.Items.Add(mnuParent);
}
}

protected void populateChildItems(ref MenuItem parentMenuItem, List<menubal> menuList)
{
Int32 parentMenuID = Convert.ToInt32(parentMenuItem.Value);
List<menubal> childItems = menuList.FindAll(x => x.ParentMenuID == parentMenuID);

foreach (MenuBAL item in childItems)
{
MenuItem childMenu = new MenuItem();

childMenu.Text = item.MenuName;
//childMenu.Target = item.MenuURL;
childMenu.NavigateUrl = item.MenuURL;
childMenu.Value = item.MenuID.ToString();

populateChildItems(ref childMenu, menuList);

parentMenuItem.ChildItems.Add(childMenu);
}
}