Passing array of ints to T-SQL stored proc via entity framework

Question

I\'ve read many posts and think I understand the concepts, but my small array of ints fails to pass from a C#/EF module to a SQL Server stored proc. Hoping other eyes can s

Answer 1

That worked! For the sake of others I'll post the precise code here, which I had to tweak slightly.

var dataTable = new DataTable();
dataTable.TableName = "dbo.IntsTTV";
dataTable.Columns.Add("Id", typeof(int));
dataTable.Rows.Add(1); // Id of '1' is valid for the Person table

SqlParameter parameter = new SqlParameter("UserIds", SqlDbType.Structured);
parameter.TypeName = "dbo.IntsTTV";
parameter.Value = dataTable;
var res = _db.Database.SqlQuery<string>("EXEC dbo.GetUsers @UserIds", parameter).ToList();

Answer 2

This is how I call stored procedure with table valued parameter. The main difference being that I use a DataTable parameter.

I remember having issues with parameter name bindings, but I don't remeber exactly what they were. This explains the change I made in the syntax of the procedure call. I know this one should be working.

var dataTable = new DataTable();
dataTable.TableName = "dbo.IntsTTV";
dataTable.Columns.Add("Id", typeof(int));
dataTable.Rows.Add(1); // Id of '1' is valid for the Person table

SqlParameter parameter = new SqlParameter("UserIds", SqlDbType.Structured);
parameter.TypeName = dataTable.TableName;
parameter.Value = dataTable;

var res = _db.Database.SqlQuery<string>("EXEC GetUsers @UserIds", parameter).ToList();

Answer 3

I know this has been answered by found a different way that might help someone else out there

STRING_SPLIT

declare @intArray nvarchar(1000)
set @intArray = '1,2,3,4,5'
select value from STRING_SPLIT(@intArray , ',')

This will return a new table with the numbers in your @intArray

Then you just need to use it as a normal table

select * from myMainTable where Id in (select value from STRING_SPLIT(@intArray , ','))