asp.net mvc ViewBag常用操作

1.视图获取json类型数据

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(1);
    var josnArry = new JsonResult { Data = modelArea, JsonRequestBehavior = JsonRequestBehavior.AllowGet };
    ViewBag.loginInfoList = josnArry.Data.ToJSON();

    return View();
}