Filter Using Linq On datatable with "IN" and "Not In" Clause

Question

4.50/5 (2 votes)

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Hi Friends,
I want to filter the rows of data table based on some condition i have tried the following code to fire with "!" and "IN" clause.

C#

var deepak = from n in datatable.AsEnumerable()
                        where !(from n1 in datatable.AsEnumerable()
                                select n1.Field<string>("stauscode").Contains("JOB"))
                        select n;

Please suggest me how to place the in and not in condition in linq on datatable
i have also tried googling but that are not very much understandable.

Thanks in Advance

Posted 20-Apr-12 21:09pm

deepakaitr12345

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Comments

VJ Reddy 9-May-12 4:35am

Thank you for accepting the solution.

2 solutions

Solution 1

Try

C#

var list1 = from n1 in datatable.AsEnumerable() select n1.Field<string> ("stauscode").Contains("JOB")

var list2 = from n in datatable.AsEnumerable() select n

var result = list2.Except(list1);

Posted 20-Apr-12 21:24pm

Abhinav S

v2

Comments

Dr_Sarger_PUA 27-Oct-12 2:32am

Hi i want to modify this code , to campare two tables . the tables are the same , no primary key, i want to compare the two tables and return the rows that exists in datatable A not in datatable B .

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VJ Reddy · Accepted Answer · 2012-04-23T14:11:00

Solution 2

From the question it appears that all rows from datatable, which do not contain JOB in stauscode column are required to be filtered out, as the same datatable is used in the inner query. If that is the case, then I think the following query can be used.

C#

var filteredRows = from n in datatable.AsEnumerable()
                   where !n.Field<string>("stauscode").Contains("JOB")
                   select n;

If the result is required as a DataTable then

C#

var filteredTable = (from n in datatable.AsEnumerable()
                    where !n.Field<string>("stauscode").Contains("JOB")
                    select n).CopyToDataTable();

Posted 23-Apr-12 14:11pm

VJ Reddy

Updated 8-May-12 22:34pm

v2

Comments

Abhinav S 23-Apr-12 23:18pm

Correct. 5.

VJ Reddy 23-Apr-12 23:30pm

Thank you, Abhinav.
I think the vote is not updated.

Abhinav S 24-Apr-12 2:56am

Fixed.

VJ Reddy 24-Apr-12 3:04am

Thank you, Abhinav.

member60 10-May-12 2:24am

My 5!

VJ Reddy 10-May-12 3:15am

Thank you, member60.

Sandeep Mewara 10-May-12 14:22pm

My 5!

VJ Reddy 10-May-12 20:16pm

Thank you, Sandeep.

crazie.coder 4-Apr-14 6:59am

Its also helped me