根据使用LINQ的条件将集合拆分为多个部分?

我想达到类似的目标 this . 但我不知道我能用什么方法来解决这个问题。

我的实体具有这些属性

CustomerName
Date
SortOrder

我有这个实体的完整列表。我要做的是,将列表中所有连续的项目分组 排序顺序 同样的 日期 同样的 客户名称

示例输入

  var inv = new List<Invoice>(){
    new Invoice(){ CustomerName = "Abc" ,Date = DateTime.Today, SortOrder = 0},
    new Invoice(){ CustomerName = "Abc" ,Date = DateTime.Today, SortOrder = 1},
    new Invoice(){ CustomerName = "Abc" ,Date = DateTime.Today, SortOrder = 2},
    new Invoice(){ CustomerName = "xyz" ,Date = DateTime.Today.Subtract(TimeSpan.FromDays(1)), SortOrder = 3},
    new Invoice(){ CustomerName = "xyz" ,Date = DateTime.Today.Subtract(TimeSpan.FromDays(1)), SortOrder = 4},
    new Invoice(){ CustomerName = "Abc" ,Date = DateTime.Today, SortOrder = 5},
    new Invoice(){ CustomerName = "Abc" ,Date = DateTime.Today, SortOrder = 6}
  };

示例输出

  var invGrouped = new List<List<Invoice>>
   {
     new List<Invoice>
       {
         new Invoice {CustomerName = "Abc", Date = DateTime.Today, SortOrder = 0},
         new Invoice {CustomerName = "Abc", Date = DateTime.Today, SortOrder = 1},
         new Invoice {CustomerName = "Abc", Date = DateTime.Today, SortOrder = 2}
       },
     new List<Invoice>
       {
         new Invoice {CustomerName = "xyz", Date = DateTime.Today.Subtract(TimeSpan.FromDays(1)), SortOrder = 3},
         new Invoice {CustomerName = "xyz", Date = DateTime.Today.Subtract(TimeSpan.FromDays(1)), SortOrder = 4}
       },
     new List<Invoice>
       {
         new Invoice {CustomerName = "Abc", Date = DateTime.Today, SortOrder = 5},
         new Invoice {CustomerName = "Abc", Date = DateTime.Today, SortOrder = 6}

       }
   };

更新
非LINQ解决方案也足够了。