/// <summary>
/// DataReader到Collection
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="collection"></param>
/// <param name="dr"></param>
/// <param name="items"></param>
/// <param name="dod"></param>
/// <returns>返回原有的集合</returns>
public static EditableDataObjectCollectionBase <T> DataReaderToCollection <T>(EditableDataObjectCollectionBase <T> collection, IDataReader dr, ORMappingItemCollection items, DataToObjectDeligations dod) where T : new()
{
dr.NullCheck("dr");
items.NullCheck("items");
dod.NullCheck("dod");
using (ORMappingContext context = ORMappingContext.GetContext())
{
while (dr.Read())
{
collection.Add(DataReaderToObject(dr, items, new T(), dod));
}
}
return(collection);
}
/// <summary>
/// DataView的数据转换到集合中
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="collection"></param>
/// <param name="items"></param>
/// <param name="view"></param>
/// <param name="dod"></param>
/// <returns>返回原有的集合</returns>
public static EditableDataObjectCollectionBase <T> DataViewToCollection <T>(EditableDataObjectCollectionBase <T> collection, ORMappingItemCollection items, DataView view, DataToObjectDeligations dod) where T : new()
{
collection.NullCheck("collection");
items.NullCheck("items");
view.NullCheck("view");
using (ORMappingContext context = ORMappingContext.GetContext())
{
foreach (DataRowView drv in view)
{
collection.Add(DataRowToObject(drv.Row, items, new T(), dod));
}
}
return(collection);
}
/// <summary>
/// DataReader到Collection
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="collection"></param>
/// <param name="dr"></param>
/// <param name="items"></param>
/// <param name="dod"></param>
public static void DataReaderToCollection <T>(EditableDataObjectCollectionBase <T> collection, IDataReader dr, ORMappingItemCollection items, DataToObjectDeligations dod) where T : new()
{
dr.NullCheck("dr");
items.NullCheck("items");
dod.NullCheck("dod");
using (ORMappingContext context = ORMappingContext.GetContext())
{
while (dr.Read())
{
T graph = new T();
DataReaderToObject(dr, items, graph, dod);
collection.Add(graph);
}
}
}
/// <summary>
/// 根据映射关系，得到Select语句中返回的字段名称数组
/// </summary>
/// <param name="mapping"></param>
/// <param name="ignoreProperties"></param>
/// <returns></returns>
public static string[] GetSelectFieldsName(ORMappingItemCollection mapping, params string[] ignoreProperties)
{
mapping.NullCheck("mapping");
ignoreProperties.NullCheck("ignoreProperties");
List <string> result = new List <string>();
foreach (ORMappingItem item in mapping)
{
if ((item.BindingFlags & ClauseBindingFlags.Select) != ClauseBindingFlags.None)
{
if (Array.Exists <string>(ignoreProperties, target => (string.Compare(target, item.PropertyName, true) == 0)
) == false)
{
result.Add(item.DataFieldName);
}
}
}
return(result.ToArray());
}