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

The IN clause can't take a bound parameter like that. What it's being given when the query is actually created is SELECT * FROM CheckList_Groups Where id in ('1,2,3,4'). Essentially the IN clause is being passed a single string.