公用combobox

公共下拉框調用方法
        <script>
            var ndata = { id: "新聞要聞類", type: "gettype" }
            getcomboboxdata("ashprama/getjsondata_for_combobox.ashx", ndata, "#cc", "TYPENAME", "TYPEVALUE", "", "000000");
</script>
///下拉框公共組件
//urlstring爲獲取數據地址
//nadata格式如： ndata = { id: "新聞要聞類", type: "gettype" }
//comboboxid爲comboboxid
//comboboxvalue爲值
//comboboxtext顯示值
//comboboxgroup爲分組值
//defaultvalue爲默認值，如爲空則默認選擇中第一個
function getcomboboxdata(urlstring, ndata, comboboxid, comboboxvalue, comboboxtext, comboboxgroup, defaultvalue) {
    $.ajax({
        type: "POST",
        url:urlstring,
        data: ndata,
        contenttype: "json",
        success: function (msg) {
            LoadData(msg, comboboxid, comboboxvalue, comboboxtext, comboboxgroup, defaultvalue)
        }
    })
}
function LoadData(data,comboboxid,comboboxvalue,comboboxtext,comboboxgroup,defaultvalue) {
    $(comboboxid).combobox({
        data: eval(data),
        valueField: comboboxvalue,
        textField: comboboxtext,
        groupField: comboboxgroup,
        onLoadSuccess: function () {//設置默認值
            var val = $(this).combobox("getData");
            var setval = defaultvalue;
            if (setval != "") { setval = defaultvalue }
            else { setval = val[0].TYPENAME }
            $(this).combobox("select", setval);

        }
    });
}

        public void ProcessRequest(HttpContext context)
        {
            string id = context.Request["id"];
            string gettype = context.Request["type"];
            DataTable dt = new DataTable();
            string strJson = "";

            switch (gettype)
            {
                case "getdepat"://取部門
                    {
                     dt = comm_data.getcommdata(1, 0, "qg_emplyee", "DISTINCT t.depatment", "", "");
                        break;
                    }
                case "getemplyee"://取人員
                    {
                        dt = comm_data.getcommdata(1, 0, "qg_emplyee", " t.user_name,t.depatment", "t.depatment='" + id + "'", "");
                        break;

                    }
                case "getmenu"://取菜單
                    {
                        if (id == "leaf")//如果爲取菜單的葉子
                        {
                            OracleParameter[] pan = {
                                             new OracleParameter("v_cur",  OracleDbType.RefCursor) 
                                        };
                            pan[0].Direction = ParameterDirection.Output;
                            dt = dataconnection.ExecuteDataTableByProc("QG_GETMENULEAF", pan);

                        }
                        if (id == "all")//不爲葉子，即找出用戶菜單
                        {
                            string currentuser = context.Session["UserID"].ToString();
                            string usermenuid = getusermenuid(currentuser);
                            if (usermenuid != "nousername") //即有權限
                            {
                                usermenuid = getmenuparentid() + usermenuid;
                                usermenuid = usermenuid.Replace(",", "','");
                                usermenuid = "menuid in ('" + usermenuid + "')";
                                dt = comm_data.getcommdata(1, 0, "qg_menu", "t.menunum,t.menuname,t.menuparent,t.menupre,t.menuid", usermenuid, "t.menunum desc");
                            }
                            else
                            {
                                dt = null;
                            }
                        }

                        break;

                    }
                case "gettype"://即取字典表
                    {
                        string wherestring = "";
                        if (id != "" || id != null)
                            wherestring = "t.type_type='" + id + "'";
                        dt = comm_data.getcommdata(1, 0, "qg_type", "t.*",wherestring , "");
                        break;
                    }
            }

            if (dt != null)
            { strJson = Newtonsoft.Json.JsonConvert.SerializeObject(dt); }
            context.Response.Write(strJson);
        }
        private string getmenuparentid()
        {
            string yy = "";
            DataTable dt = new DataTable();
            try
            {
                OracleParameter[] pan = {
                                             new OracleParameter("v_cur",  OracleDbType.RefCursor) 
                                        };
                pan[0].Direction = ParameterDirection.Output;
                dt = dataconnection.ExecuteDataTableByProc("QG_GETUSERMENU", pan);
                if (dt.Rows.Count != 0)
                {
                    for (int i = 0; i < dt.Rows.Count; i++)
                    {
                        yy = yy + dt.Rows[i]["menuid"].ToString() + ",";
                    }
                }
            }
            catch (Exception err)
            {
                yy = err.ToString();
            }
            return yy;

        }

        private string getusermenuid(string userid)
        {
            string yy = "";
            DataTable dt = new DataTable();
            try
            {
                dt = comm_data.gettablebypruce("qg_sysuser", " username='" + userid + "'", "");
                if (dt.Rows.Count != 0)
                {
                    yy = dt.Rows[0]["job"].ToString();

                }
                else
                {
                    yy = "nousername";
                }
            }
            catch (Exception err)
            {
                yy = err.ToString();
            }
            return yy;
        }