为什么无法使用存储过程的结果将数据源绑定到我的datagridview？

Question

My SP :

My C#:

I can't get method .ToList() in eksekusi for datasource in datagridview, how to solve this?

Answer 1

The result of the stored procedure is a collection of items ( IEnumerable<T> / IQueryable<T> ). When you perform FirstOrDefault you retrieve the first item in the collection or default(T) if collection is empty.

The T that you have is not an IEnumerable<T> but an object representing a single record with 3 properties, so you do not have the ToList() extension method.