C# - IDataReader to Object mapping using generics

Question

How can I map a DataReader object into a class object by using generics?

For example I need to do the following:

public class Mapper
    {
          


        

Answer 1

I use ValueInjecter for this

I'm doing like this:

 while (dr.Read())
  {
      var o = new User();
      o.InjectFrom(dr);
      yield return o;
  }

you gonna need this ValueInjection for this to work:

public class DataReaderInjection : KnownSourceValueInjection
    {
        protected override void Inject(IDataReader source, object target, PropertyDescriptorCollection targetProps)
        {
            for (var i = 0; i < source.FieldCount; i++)
            {
                var activeTarget = targetProps.GetByName(source.GetName(i), true);
                if (activeTarget == null) continue;

                var value = source.GetValue(i);
                if (value == DBNull.Value) continue;

                activeTarget.SetValue(target, value);
            }
        }
    }