SQL use comma-separated values with IN clause

Question

I am developing an ASP.NET application and passing a string value like \"1,2,3,4\" into a procedure to select those values which are IN (1,2,3,4) but its saying \"Conversion

Answer 1

Sure it can't do that,

The generated query would be sth like this

SELECT * FROM CheckList_Groups Where id in ('1,2,3,4')

and sure it can't be executed.

you can build the query in your stored procedure then execute it with exec

'SELECT * FROM CheckList_Groups Where id in (' + @pGroupIDs + ')'

or

SELECT * FROM CheckList_Groups Where charindex(','+id+',' , @pGroupIDs)>0

but you first must add the ',' to start and end of your parameter in your c# code