var str = '@(ViewBag.loginInfoList)';

if ($.trim(str).length>0) {

    re = new RegExp(""", "g"); //定义正则表达式，g标识全部替换  将\转译为",成为正确的json格式数据

    var newstr = str.replace(re, '"');

    re = new RegExp("{", "g"); //定义正则表达式，g标识全部替换

    newstr = newstr.replace(re, "[{");

    re = new RegExp("}", "g"); //定义正则表达式，g标识全部替换

    newstr = newstr.replace(re, "}]");

    var jsonData = $.parseJSON(newstr); //将字符串转换为json格式

    var PassageWayList = jsonData[0].id + "-" + jsonData[0].Brand + ",";

} 

/// <summary>

/// 摄像头预览

/// </summary>

/// <returns></returns>

public ActionResult CameraView(string id)

{

    var bllArea = new CameraArea();

    modelArea = bllArea.GetModel();

    var josnArry = new JsonResult { Data = modelArea, JsonRequestBehavior = JsonRequestBehavior.AllowGet };

    ViewBag.loginInfoList = josnArry.Data.ToJSON();

    return View();

}