Enumerable.GroupBy ()的问题

[spmzfz]

 public class GpInformation
 {
     public string Code
     {
         get;
         set;
     }

     public string Name
     {
         get;
         set;
     }

     public string HangYe
     {
         get;
         set;
     }

 }
 private void button15_Click(object sender, EventArgs e)
 {

     GpInformation[] gi = { new GpInformation{ Code ="0001", Name = "b0", HangYe = "Bank"},
                           new GpInformation {Code ="0002", Name = "z1", HangYe ="Zhengjuan"},
                           new GpInformation{Code ="0003",Name ="b1",HangYe ="Bank" },
                           new GpInformation{Code ="0004",Name ="b2",HangYe ="Bank"},
                           new GpInformation{Code ="0005",Name = "b3",HangYe ="Bank"},
                           new GpInformation{Code ="0006",Name ="d1",HangYe ="Dichan"},
                           new GpInformation{Code ="0007",Name ="z2",HangYe ="Zhengjuan"}
                           //....
                         };

     List<GpInformation> Lg = new List<GpInformation>(gi);
     int Count = Lg.GroupBy(a => a.HangYe).Select(a => a.Count(b => b.HangYe == a.Key)).Max();
     Console.WriteLine("Count:{0}", Count); //Count:4



 }

[ 我想获得Lg按HangYi进行分组后其成员最多的个数值，并且同时想获得其HangYe值，该如何编码？
注:此实例中Lg按HangYe进行分组后其成员最多的个数值为【4】，其HangYe名称为【Bank】。

[spmzfz]

问题已经解决：

           var V =  GpInformationsByShAndSz.GroupBy(a => a.HangYe).Select(a => new { HangYe = a.Key, Count = a.Count() }).OrderByDescending(a => a.Count).First();
           Console.WriteLine(V.HangYe + "  " + V.Count);

[郑州高新区WPF小王子]

 var temp1 = (from p in Lg 
                       group p by p.HangYe
                       into temp
                       select new {
                         temp.Key,
                         count = temp.Count(t=>t.HangYe==temp.Key)
                       }).FirstOrDefault();

[全栈极简]

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            GpInformation[] gi = { new GpInformation{ Code ="0001", Name = "b0", HangYe = "Bank"},
                           new GpInformation {Code ="0002", Name = "z1", HangYe ="Zhengjuan"},
                           new GpInformation{Code ="0003",Name ="b1",HangYe ="Bank" },
                           new GpInformation{Code ="0004",Name ="b2",HangYe ="Bank"},
                           new GpInformation{Code ="0005",Name = "b3",HangYe ="Bank"},
                           new GpInformation{Code ="0006",Name ="d1",HangYe ="Dichan"},
                           new GpInformation{Code ="0007",Name ="z2",HangYe ="Zhengjuan"}
                           //....
                         };

            List<GpInformation> Lg = new List<GpInformation>(gi);

            var result = Lg.GroupBy(x => x.HangYe).Select(x => new { Key = x.Key, Count = x.Count() }).OrderByDescending(x => x.Count).FirstOrDefault();

            Console.WriteLine("Key:{0}\tCount:{1}", result.Key, result.Count);
        }
    }

    public class GpInformation
    {
        public string Code
        {
            get;
            set;
        }

        public string Name
        {
            get;
            set;
        }

        public string HangYe
        {
            get;
            set;
        }
    }
}

[蝶恋花雨]

 var test = (from p in Lg group p by p.HangYe into g select new { g.Key, count = g.Count() }).Select(x => new {x.Key,x.count }).OrderByDescending(x=>x.count).FirstOrDefault();

输出：4,bank;

[蝶恋花雨]

不排序的代码

(from p in Lg group p by p.HangYe into g select new { g.Key, count = g.Count() })
.Select(x => new {x.Key,x.count }).FirstOrDefault();

输出：4,bank;