Linq unique count

Linq unique count property

data.Select(x => x.Id).Distinct().Count();

Source: grepper.com

LINQ return list of unique values with counts

// model
 public class orderviewmodel
    {
        public string OrderNumber { get; set; }
        public int Count { get; set; }
    }
    
 // BL
  public IList<orderviewmodel> Read(string tmpC)
        {
            try
            {
                using (var entities = new UrEntities())
                {
                    return entities.Masters.Where(w => w.ContainerNumber.Equals(tmpC)).GroupBy(g => g.OrderNumber)
                        .Select(s => new orderviewmodel { OrderNumber = s.Key, Count = s.ToList().Count,  }).ToList();
                }
            }
            catch (Exception)
            {

                throw;
            }
        }

Source: grepper.com

Similar codes

0 vote228 views1 answer
Make all variables nonserizlized unity
C#
1 vote229 views1 answer
Dapper delete where in list
C#
0 vote245 views1 answer
C# increase length of array
C#
3 votes263 views1 answer
How to set a custom size for window in monogame
C#
0 vote254 views1 answer
C# statements
C#
0 vote229 views1 answer
How to change the width of a panel unity
C#
0 vote223 views4 answers
C# string to float
C#
0 vote250 views1 answer
Check if type is child of type
C#
0 vote243 views1 answer
How to truncate a decimal without rounding
C#
2 votes247 views1 answer
Import C++ into C#
C#