dapper

I love using Dapper for my ORM needs but I know there must be a better way to insert/update my sql server database using a stored procedure and strongly typed Lists. For example: I have a class Song: public class Song { public int Id { get; set; } public string title { get; set; } public string genre { get; set; } } and somebody submits a List of songs: List<Song> songs = new List<Song> { new Song { Id = 1, title = "Song 1" , genre="rock"}, new Song { Id = 2, title = "Song 2" , genre="disco"}}; I want to update the database using my stored procedure which either inserts the new song or updates

Let's start by getting this out of the way: I'm stuck using an MS Access DB and I can't change it. This works fine: using (OleDbConnection conn = ConnectionHelper.GetConnection()) { conn.Open(); var results = conn.Query<string>( "select FirstName from Students where LastName = @lastName", new { lastName= "Smith" } ); conn.Close(); } This works fine: using (OleDbConnection conn = ConnectionHelper.GetConnection()) { OleDbCommand cmd = new OleDbCommand( "update Students set FirstName = @firstName, City = @city where LastName = @lastName", conn ); cmd.Parameters.AddWithValue("firstName", "John");

I'm using Dapper against a database where strings are stored primarily in VarChar columns. By default Dapper uses NVarChar parameters when generating queries and while I can wrap each and every string parameter I use with DbString it'd be great to use AnsiStrings by default and use DbString for the NVarChar case. I tried changing the type map in the Dapper source from DbType.String to DbType.AnsiString however that seems to cause an error in the IL generation for the parameters delegate (throws an InvalidProgramException ). Is there an easier way to do this? Update Just changing the typeMap

Is it possible to use anonymous types with Dapper? I can see how you can use dynamic i.e. connection.Query<dynamic>(blah, blah, blah) is it then possible to do a .Select(p=> new { A, B ,C }) or some variation of that afterwards? Edit I thought I'd show you how I am using Dapper at the moment. I tend to cache (using an InMemoryCache) data so I just do one big query at the beginning (which is super quick using Dapper) then I use Linq to sort it all out in my Repository. using System; using System.Collections.Generic; using System.Configuration; using System.Data.Common; using System.Linq; using

I have been using Dapper.net for a while now and its a very good ORM mapper which works great with .Net dynamic types. But I noticed that when Dapper retrieves data from a database it returns as DapperRow type. Is there are any way that I can return it in any other type Like System.Dynamic.ExpandoObject ? Marc Gravell The DapperRow object is designed to share a lot of state between rows. For example, if you fetch 40 rows, the column names etc are only stored once . If we used ExpandoObject , this would need to be configured per row. Hence, the use of DapperRow as the behind-the-scenes

I am coming from PetaPoco camp. PetaPoco has a T4 template which generates model from the database. Is anything similar available for Dapper? I installed Dapper using NuGet and added SqlHelper.cs, but I didn't find anything which generates model from the database. Void Ray Dapper itself provides few extension methods (Query, Execute) for the connection object and does not have "model generator." Perhaps some other framework can be used to generate POCO's based on the db schema. Update: Database tables to C# POCO classes T4 template <#@ template language="C#" debug="True" #> <#@ assembly name=