点滴积累【C#】当前菜单所在位置（导航栏）

当前菜单所在位置（导航栏）

效果：

描述：就是你所进入菜单的路径，俗称导航。

代码：

private string thisPositionID = string.Empty;
        public string ThisPositionID
        {
            get
            {
                if (Request.QueryString["ThisPositionID"] != null && Request.QueryString["ThisPositionID"] != string.Empty)
                    thisPositionID = Request.QueryString["ThisPositionID"];
                return thisPositionID;
            }
            set
            {
                thisPositionID = value;
            }
        }

private string thisPosition = string.Empty;
        public string ThisPosition
        {
            get
            {
                if (ThisPositionID != string.Empty)
                {
                    string sql = string.Format(@"SELECT a.MenuName AS MenuNameA,b.MenuName AS MenuNameB,c.MenuName AS MenuNameC,c.MenuLevel AS MenuLevelC FROM MenuManagement a 
                                                 INNER JOIN MenuManagement b ON a.ParentMenuID=b.MenuID
                                                 INNER JOIN MenuManagement c ON b.ParentMenuID=c.MenuID
                                                 WHERE a.MenuID={0}", ThisPositionID);
                    DataSet ds = new DataSet();
                    ERPDB.LoadDataSet(CommandType.Text, sql, ds, new string[] { "data" });
                    if (ds.Tables["data"].Rows.Count == 1)
                    {
                        DataRow row = ds.Tables["data"].Rows[0];
                        if (Convert.ToString(row["MenuLevelC"]) == "1")
                        {
                            thisPosition = string.Format("当前位置：{0}>>{1}", row["MenuNameB"], row["MenuNameA"]);
                        }
                        else if (Convert.ToString(row["MenuLevelC"]) == "2")
                        {
                            thisPosition = string.Format("当前位置：{0}>>{1}>>{2}", row["MenuNameC"], row["MenuNameB"], row["MenuNameA"]);
                        }
                        else if (Convert.ToString(row["MenuLevelC"]) == "3")
                        {
                            thisPosition = string.Format("当前位置：{0}>>{1}>>{2}", row["MenuNameC"], row["MenuNameB"], row["MenuNameA"]);
                        }
                    }

                }
                return thisPosition;
            }
        }

调用：

protected void Page_Load(object sender, EventArgs e)
        { 
            if (!IsPostBack)
            { 
                this.lbTip.Text = ThisPage.ThisPosition; 
            } 
        }