将Dictionary转换为JSOn(convert Dictionary into JSOn)

 我想将Dictionary转换为Json。 键是一个字符串，值是CompaignModel的ICollection： 
 
  IDictionary<string, ICollection<BuzzCompaignModel>>  BuzzCompaignByInterest ;
 
 这里包含BuzzCompaign模型： 
 
 public class BuzzCompaignModel
   {
      public long BuzzCompaignId { get; set; }
      public string Name { get; set; }
      public string Description { get; set; }
      public DateTime EndDate { get; set; }
   }
 
 我怎么能将BuzzCompaignByInterest转换为JSON 

i want to convert Dictionary into Json. the key is a string and the value is a ICollection of CompaignModel : 
 
  IDictionary<string, ICollection<BuzzCompaignModel>>  BuzzCompaignByInterest ;
 
and here is what contain BuzzCompaign Model :
 
 public class BuzzCompaignModel
   {
      public long BuzzCompaignId { get; set; }
      public string Name { get; set; }
      public string Description { get; set; }
      public DateTime EndDate { get; set; }
   }
 
how can i convert BuzzCompaignByInterest into JSON

原文：https://stackoverflow.com/questions/11576083