/// <summary>
/// 返回匿名类型
/// </summary>
/// <typeparam name="T"></typeparam>
/// <typeparam name="TResult"></typeparam>
/// <param name="reader"></param>
/// <param name="resultSelector"></param>
/// <param name="runTime"></param>
/// <returns></returns>
public static List <TResult> DataReaderToDynamic <T, TResult>(System.Data.Common.DbDataReader reader, Expression <Func <T, TResult> > resultSelector, out double runTime) where T : IModel, new()
{
var time = DateTime.Now;
List <TResult> list = new List <TResult>();
var typeArry = TypeCache.GetProperties(typeof(T), true).Values;
var columns = new Dictionary <string, int>();
for (int i = 0; i < reader.FieldCount; i++)
{
columns.Add(reader.GetName(i).ToLower(), i);
}
var reflection = ReflectionHelper.GetInfo <T>();
var actions = new List <CRL.ObjectConvert.ActionItem <T> >();
var first = true;
//var objOrigin = new T();
while (reader.Read())
{
object objInstance = reflection.CreateObjectInstance();
object[] values = new object[columns.Count];
reader.GetValues(values);
var detailItem = ObjectConvert.DataReaderToObj <T>(columns, values, reflection, true, objInstance, typeArry, actions, first) as T;
var result = resultSelector.Compile()(detailItem);
list.Add(result);
first = false;
}
reader.Close();
runTime = (DateTime.Now - time).TotalMilliseconds;
return(list);
}
public static List <TResult> DataReaderToDynamic <T, TResult>(System.Data.Common.DbDataReader reader, Expression <Func <T, TResult> > resultSelector, ParameCollection fieldMapping) where T : IModel, new()
{
List <TResult> list = new List <TResult>();
var typeArry = TypeCache.GetProperties(typeof(T), true).Values;
while (reader.Read())
{
var detailItem = ObjectConvert.DataReaderToObj(reader, typeof(T), typeArry, fieldMapping) as T;
var result = resultSelector.Compile()(detailItem);
list.Add(result);
}
reader.Close();
return(list);
}
/// <summary>
/// 返回匿名类型
/// </summary>
/// <typeparam name="T"></typeparam>
/// <typeparam name="TResult"></typeparam>
/// <param name="reader"></param>
/// <param name="resultSelector"></param>
/// <param name="runTime"></param>
/// <returns></returns>
public static List <TResult> DataReaderToDynamic <T, TResult>(System.Data.Common.DbDataReader reader, Expression <Func <T, TResult> > resultSelector, out double runTime) where T : IModel, new()
{
var time = DateTime.Now;
List <TResult> list = new List <TResult>();
var typeArry = TypeCache.GetProperties(typeof(T), true).Values;
while (reader.Read())
{
var detailItem = ObjectConvert.DataReaderToObj(reader, typeof(T), typeArry) as T;
var result = resultSelector.Compile()(detailItem);
list.Add(result);
}
reader.Close();
runTime = (DateTime.Now - time).TotalMilliseconds;
return(list);
}
