public static List <T> ToEntityList <T>(this IDataReader dr) where T : class, new()
{
List <MappedProperty> mappedProperties = new List <MappedProperty>();
Type t = typeof(T);
foreach (PropertyInfo pi in t.GetProperties())
{
foreach (Attribute a in pi.GetCustomAttributes(true))
{
if (a is ColumnMapAttribute)
{
ColumnMapAttribute cma = a as ColumnMapAttribute;
mappedProperties.Add(new MappedProperty(pi, cma));
}
}
}
List <T> entities = new List <T>();
while (dr.Read())
{
T entity = new T();
foreach (MappedProperty mp in mappedProperties)
{
object value;
try
{
value = dr[mp.Map.FieldName];
}
catch
{
throw;
}
if (value != DBNull.Value)
{
Type pt = mp.Property.PropertyType;
if (pt.IsGenericType && pt.GetGenericTypeDefinition() == typeof(Nullable <>))
{
pt = pt.GetGenericArguments()[0];
}
value = Convert.ChangeType(value, pt, CultureInfo.InvariantCulture);
}
else
{
value = null;
}
mp.Property.SetValue(entity, value, null);
}
entities.Add(entity);
}
return(entities);
}
public MappedProperty(PropertyInfo pi, ColumnMapAttribute cma)
{
Property = pi;
Map = cma;
}