如何采用easyui tree编写简单角色权限代码

首先每个管理员得对应一个角色：

而角色可以操作多个栏目，这种情况下我们可以采用tree多选的方式：

在页面上js代码：

$('#Permission').dialog({ title: '栏目权限', closed: false });
$('#rtt').tree({
    url: 'ashx/RoleService.ashx?action=RoleTree&Rid=' + raw.ID,
    method: 'get',
    animate: true,
    checkbox: true
});
$('#Rid').val(raw.ID);

用了一个dialog弹出进行实现ashx中传入一个角色编号

C#代码为：

case "RoleTree":
    string Rid = context.Request.Params["Rid"];
    int Roleid = Convert.ToInt32(Rid);
    List<tree> treelist = getChildren("Angel_Admin_Navigation", "0", Roleid);
    Newtonsoft.Json.Converters.IsoDateTimeConverter timeConverter = new Newtonsoft.Json.Converters.IsoDateTimeConverter();
    timeConverter.DateTimeFormat = "yyyy'-'MM'-'dd";
    string ResJsonStr = JsonConvert.SerializeObject(treelist, Formatting.Indented, timeConverter);
    context.Response.ContentType = "text/plain";
    context.Response.Clear();
    context.Response.Write(ResJsonStr);

case哪里是一个action操作参数这个就不用我说了吧！

现在我们来看看输出tree数据怎么写：

//Tree递归调用
public List<tree> getChildren(string tableName, string fid, int RoleId)
{
    DBHelperSql Dbhelper = new DBHelperSql();
    List<tree> list = new List<tree>();
    DataTable dt = Dbhelper.GetDataTable(tableName, " ParentId='" + fid + "' ");
    if (dt.Rows.Count > 0)
    {
        for (int i = 0; i < dt.Rows.Count; i++)
        {
            tree tree = new tree();
            tree.id = dt.Rows[i]["NavName"].ToString();
            tree.text = dt.Rows[i]["TitleName"].ToString();
            if(OperateBll.IsRoleoperateDataExist(dt.Rows[i]["NavName"].ToString(),RoleId)){
            tree.@checked =true;
            }
            tree.children = getChildren(tableName, dt.Rows[i]["id"].ToString(),RoleId);
            list.Add(tree);
        }
    }
    else
        list = null;
 
    return list;
}
//tree属性
public class tree
{
    public string id { get; set; }
    public string text { get; set; }
    public bool @checked { get; set; }
    public List<tree> children { get; set; }
}