internal static TResult MapToType <TResult>(IEnumerable <DynamicObject> dataRecords, IDynamicObjectMapper mapper, Expression expression)
{
var elementType = TypeHelper.GetElementType(typeof(TResult));
if (mapper is null)
{
mapper = new DynamicQueryResultMapper();
}
if (dataRecords is null)
{
return(default);
internal static T MapToType <T>(IEnumerable <DynamicObject> dataRecords, IDynamicObjectMapper mapper, Expression expression)
{
var elementType = TypeHelper.GetElementType(typeof(T));
var strElementType = elementType.Name;
if (mapper is null)
{
mapper = new DynamicQueryResultMapper();
}
var result = mapper.Map(dataRecords, elementType);
if (result is null)
{
return(default(T));
}
if (typeof(T).IsAssignableFrom(typeof(IEnumerable <>).MakeGenericType(elementType)))
{
return((T)result);
}
if (typeof(T).IsAssignableFrom(elementType))
{
try
{
object single;
if ((expression as MethodCallExpression)?.Arguments.Count == 2)
{
var predicate = GetTruePredicate(elementType);
single = MethodInfos.Enumerable.SingleWithFilter.MakeGenericMethod(elementType).Invoke(null, new object[] { result, predicate });
}
else
{
single = MethodInfos.Enumerable.Single.MakeGenericMethod(elementType).Invoke(null, new object[] { result });
}
return((T)single);
}
catch (TargetInvocationException ex)
{
throw ex.InnerException;
}
}
throw new Exception(string.Format("Failed to cast result of type '{0}' to '{1}'", result.GetType(), typeof(T)));
}