//递归输出左边菜单列表【最多三级】
public string RenderHtmlLeftMenu(List <FunNode> nodes)
{
if (nodes == null || nodes.Count == 0)
{
return("");
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < nodes.Count; i++)
{
FunNode node = nodes[i];
if (node.SubNodes == null || node.SubNodes.Count == 0)
{
sb.AppendFormat("<li menu='{3}'><a href='{0}' target='{4}'><i class='{1}'></i><span class='menu-text'>{2}</span></a></li>", node.Url, node.ClassName, node.Title, node.Menu, node.Menu == "_blank" ? "_blank" : "_self");
}
else
{
sb.Append("<li>");
sb.AppendFormat("<a href='#' class='dropdown-toggle'><i class='{0}'></i><span class='menu-text'>{1}</span><b class='arrow icon-angle-down'></b></a>", node.ClassName, node.Title);
sb.Append("<ul class='submenu'>");
foreach (FunNode item in node.SubNodes)
{
if (item.SubNodes == null || item.SubNodes.Count == 0)
{
sb.AppendFormat("<li menu='{3}'><a href='{0}' target='{4}'><i class='{1}'></i>{2}</a></li>", item.Url, item.ClassName, item.Title, item.Menu, item.Menu == "_blank" ? "_blank" : "_self");
}
else
{
sb.Append("<li>");
sb.AppendFormat("<a href='#' class='dropdown-toggle'><i class='{0}'></i>{1}<b class='arrow icon-angle-down'></b></a>", item.ClassName, item.Title);
sb.Append("<ul class='submenu'>");
foreach (FunNode item1 in item.SubNodes)
{
sb.AppendFormat("<li menu='{3}'><a href='{0}'><i class='{1}'></i>{2}</a></li>", item1.Url, item1.ClassName, item1.Title, item1.Menu);
}
sb.Append("</ul>");
sb.Append("</li>");
}
}
sb.Append("</ul>");
sb.Append("</li>");
}
}
return(sb.ToString());
}
//递归查找节点
private FunNode FindNode(List <FunNode> parentNodes, string url)
{
if (parentNodes.Count == 0)
{
return(null);
}
FunNode ret = null;
foreach (var node in parentNodes)
{
if (node.Url != null && node.Url.ToLower() == url.ToLower())
{
return(node);
}
ret = FindNode(node.SubNodes, url);
}
return(ret);
}
/// <summary>
/// 根据权限递归查找节点
/// </summary>
/// <param name="definedNodes">功能树上预定义的节点集</param>
/// <param name="permissions">当前用户权限</param>
/// <returns>拥有权限的节点集</returns>
private List <FunNode> BuildSubNodesByPermissions(List <FunNode> definedNodes, string permissions)
{
List <FunNode> authenticatedNodes = new List <FunNode>();
if (definedNodes.Count == 0)
{
return(authenticatedNodes);
}
foreach (var definedNode in definedNodes)
{
//是否有权限，没有定义权限代表有权限
bool hasPermission = false;
if (string.IsNullOrEmpty(definedNode.Permissions))
{
hasPermission = true;
}
else
{
string[] pList = definedNode.Permissions.Split(',');
foreach (var p in pList)
{
PermissionType permission = new PermissionType();
System.Enum.TryParse(p, out permission);
if (permissions.Contains("|" + (int)permission + "|"))
{
hasPermission = true;
break;
}
}
}
if (hasPermission)
{
FunNode note = new FunNode
{
ClassName = definedNode.ClassName,
Permissions = definedNode.Permissions,
Menu = definedNode.Menu,
Title = definedNode.Title,
Url = definedNode.Url
};
List <FunNode> subNodes = BuildSubNodesByPermissions(definedNode.SubNodes, permissions);
//如果功能树定义子功能, 那么至少有一个有权限的节点才能显示父节点
if (definedNode.SubNodes.Count > 0)
{
if (subNodes.Count > 0)
{
note.SubNodes.AddRange(subNodes);
authenticatedNodes.Add(note);
}
}
else
{
authenticatedNodes.Add(note);
}
}
}
return(authenticatedNodes);
}
