how to pass string array to stored procedure in sql server code example

Example 1: tsql array parameter

SELECT ProductId, Name, Tags  
FROM Product  
WHERE 'clothing' IN (SELECT value FROM STRING_SPLIT(Tags, ','));

Example 2: pass array parameter to stored procedure c#

CREATE FUNCTION dbo.SplitInts
(
   @List      VARCHAR(MAX),
   @Delimiter VARCHAR(255)
)
RETURNS TABLE
AS
  RETURN ( SELECT Item = CONVERT(INT, Item) FROM
      ( SELECT Item = x.i.value('(./text())[1]', 'varchar(max)')
        FROM ( SELECT [XML] = CONVERT(XML, '<i>'
        + REPLACE(@List, @Delimiter, '</i><i>') + '</i>').query('.')
          ) AS a CROSS APPLY [XML].nodes('i') AS x(i) ) AS y
      WHERE Item IS NOT NULL
  );
GO