How to Remove specific field from List

Question

Class structure

 public class EmployeeDetails
 {
        public int Id { get; set; }
        public string Name { get; set; }
        public string Exp { get; set; }
 }

List of employee details

Id Name       Exp
-- ---------  --------
1  Bill       2 years
2  John       5 years
3  Doug       1 years

I want to remove one field form list object like Id, like below output

Name       Exp
---------  --------
Bill       2 years
John       5 years
Doug       1 years

anyone have an idea how to do?
share with me
Thank you

score 13 · Accepted Answer · answered Aug 03 '17 at 06:11

13

You can try:

var listWithoutCol = List.Select(x => new { x.Name , x.Exp}).ToList();

that will return a List with only the information of the fields Name and Exp...

answered Aug 03 '17 at 06:11

ΦXocę 웃 Пepeúpa ツ

47,427
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can it possible when we make list object like `List= new List` – Pradip Talaviya Aug 03 '17 at 06:18
I don't understand your question in comment. Please specify more details. – XardasLord Aug 03 '17 at 06:30
hi @XardasLord, when we initialize List<> at that time we remove specific field ? – Pradip Talaviya Aug 03 '17 at 07:33
Is it possible to reuse this selection in something like a method? I need to apply such filter in more than one case. I searched for it but ended up not so far... – IvanF. Jul 23 '18 at 16:21

score 1 · Answer 2 · answered Aug 03 '17 at 06:43

If you want the new list to have a concrete type objects instead of anonymous objects, you can define yourself a corresponding class without IDs:

public class EmployeeDetailsDTO
{
    public string Name { get; set; }
    public string Exp { get; set; }
}

and use Select as:

var listWithoutIDs = List.Select(x => new EmployeeDetailsDTO{ Name = x.Name , Exp = x.Exp}).ToList();

score 0 · Answer 3 · answered Aug 03 '17 at 06:35

0

var employeeDetails = new List<EmployeDetails> { Id=1, Name="Peter", Exp="Two years" };   
var listWithoutId = employeeDetails.Select(x => new { x.Name, x.Exp}).ToList();

answered Aug 03 '17 at 06:35

XardasLord

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score 0 · Answer 4 · answered Jul 21 '20 at 07:28

0

You can use JsonIgnore

 public class EmployeeDetails
 {
        [JsonIgnore]
        public int Id { get; set; }
        public string Name { get; set; }
        public string Exp { get; set; }
 }

answered Jul 21 '20 at 07:28

Sujeet SIngh

1
1

It's worth to mention that `JsonIgnore` was referencing `Newtonsoft.Json` and applicable for serialization scenario only. – Zephyr Jul 21 '20 at 07:51

How to Remove specific field from List

4 Answers4