JSON转换为数组C#

我有一个带有此值的JSON

I Have a JSON with this values

{"interface":"ALL",
 "dv":"1",
 "alarms":[{"Id":0,
            "Type":"URL",
            "Trigger":"facebook",
            "Output":"video"},
           {"Id":1,
            "Type":"URL",
            "Trigger":"twitter",
            "Output":"video"},
           {"Id":2,
            "Type":"URL",
            "Trigger":"ebay",
            "Output":"video"}
]}

我想将此信息解析为mi C#代码

And i would like parse this information to mi C# Code

我对Strings标记执行此操作，并且可以正常使用

I do this for Strings tags and works ok

JObject obj = JObject.Parse(json);
String value =(String) obj["dv"]; 

但是我对标签阵列警报有错误.我尝试过:

but i have an error for tag Array alarms. I've tried with:

Array value = null;
value =(Array) obj["alarm"]; 

但是我得到一个错误(消息=无法将数组转换为字节数组.源= Newtonsoft.Json).

but i get an error (Message=Can not convert Array to byte array. Source=Newtonsoft.Json).