Question

Using PetaPoco, how do i call stored procedure with typed parameters?
in c# i do it like this:

cmd.Parameters.Add("@email", SqlDbType.NVarChar).Value = email;

Answer 1

Check out the documentation for further details but here is an extract.

http://www.toptensoftware.com/Articles/114/PetaPoco-What-s-new-in-v4-0

Support for IDbParameters as SQL arguments

PetaPoco now supports directly passing IDbParameter objects to a
query. This is handy if PetaPoco doesn’t correctly map a property.

For example the SQL Server driver doesn’t handle assigning DbNull to a
VarBinary column unless the parameter is configured with the correct
type. To work around this you can now do this:

databaseQuery.Execute("insert into temp1 (t) values (@0)",
new SqlParameter() { SqlDbType = SqlDbType.VarBinary, Value = DbNull.Value });

One interesting side effect of this is that
you can also return an IDbParameter from the PetaPoco.IMapper
interface to globally override PetaPoco’s default parameter mapping
functionality.