Dapper query with list of parameters

Question

I am trying to run a query with Dapper with a known set of parameters, but with a list of values for those parameters. A simple example of what I am trying to do would be:

DateTime endDate = DateTime.Now;
DateTime startDate = endDate.AddHours(-24);

string query = "select COUNT(*) from Test where Status = @Status AND DateCreated <= @Hour;";
var stuff = con.Query(query, (startDate).ByHourTo(endDate).Select(hour => new
{
     Status = 1,
     Hour = hour,
}));

Dapper throws an exception with 'Parameter '@Status' must be defined'. I know Dapper can process lists of parameters when doing bulk inserts and updates, but can it not do this for selects?

Answer 1

Try this:

List<string> names = new List<string> { "Bob", "Fred", "Jack" };
string query = "select * from people where Name in @names";
var stuff = connection.Query<ExtractionRecord>(query, new {names});