public static void AssignedMap <T>(T obj, DataRow row, ReturnMap <T> rMap, bool propertyNameIgnoreCase, bool skipNotExistProperty) where T : class
{
if (rMap == null)
{
return;
}
List <PropertyColumn> maps = rMap.GetMaps();
if (maps == null || maps.Count <= 0)
{
return;
}
foreach (PropertyColumn map in maps)
{
object val = row[map.Column];
if (map.PropertyList == null || map.PropertyList.Count <= 0)
{
continue;
}
else
{
string[] pNames = map.PropertyList.ToArray();
val = DataMapperHelper.ConvertIfEnum(val, typeof(T), pNames, propertyNameIgnoreCase, skipNotExistProperty);
FillFieldValue(obj, pNames, val, propertyNameIgnoreCase, skipNotExistProperty);
}
}
}
/// <summary>
/// 根据DataRow的数据来填充实体属性
/// </summary>
/// <typeparam name="T">实体类型</typeparam>
/// <param name="obj">待填充的实体对象实例</param>
/// <param name="row">读取数据库获得的数据读取器</param>
/// <param name="propertyNameIgnoreCase">根据所获取的DataRow数据集中各个列的名字去寻找实体类型中同名属性时，是否区分大小写，true则不区分大小写，默认为true。</param>
/// <param name="skipNotExistProperty">当DataRow数据集中某个列的名字在实体类型中找不到对应的同名属性时，是否自动跳过，true则自动跳过，否则抛出异常，默认为true。</param>
/// <param name="splitter">SQL结果集中某个列的名字上区分对象属性级别的分隔符，默认为'.'</param>
public static void AutoMap <T>(T obj, DataRow row, bool propertyNameIgnoreCase, bool skipNotExistProperty, char splitter, Action <DataRow, T> manualMapper = null) where T : class
{
for (int i = 0; i < row.Table.Columns.Count; i++)
{
string[] pNames = row.Table.Columns[i].ColumnName.Split(new char[] { splitter }, StringSplitOptions.RemoveEmptyEntries);
object val = DataMapperHelper.ConvertIfEnum(row[i], typeof(T), pNames, propertyNameIgnoreCase, skipNotExistProperty);
FillFieldValue(obj, pNames, val, propertyNameIgnoreCase, skipNotExistProperty);
}
if (manualMapper != null)
{
manualMapper(row, obj);
}
}
/// <summary>
/// 检查入参type的属性pNames是否为枚举，如果是，则把入参value按照枚举的mapping关系转换为对应的枚举值再返回，否则就直接返回value
/// </summary>
public static object ConvertIfEnum(object value, Type type, string[] pNames, bool propertyNameIgnoreCase, bool skipNotExistProperty)
{
if (value == null || value == DBNull.Value)
{
return(null);
}
Type pType = DataMapperHelper.GetPropertyType(type, pNames, propertyNameIgnoreCase, skipNotExistProperty);
if (pType == null)
{
return(value);
}
return(ConvertIfEnum(value, pType));
}
/// <summary>
/// 使用这个方法，需要在方法外先调用IDataReader reader的Read()方法后再将reader传入方法
/// </summary>
/// <typeparam name="T">实体类型</typeparam>
/// <param name="obj">待填充的实体对象实例</param>
/// <param name="reader">读取数据库获得的数据读取器</param>
/// <param name="propertyNameIgnoreCase">根据所获取的SQL结果集中各个列的名字去寻找实体类型中同名属性时，是否区分大小写，true则不区分大小写，默认为true。</param>
/// <param name="skipNotExistProperty">当SQL结果集中某个列的名字在实体类型中找不到对应的同名属性时，是否自动跳过，true则自动跳过，否则抛出异常，默认为true。</param>
/// <param name="splitter">SQL结果集中某个列的名字上区分对象属性级别的分隔符，默认为'.'</param>
public static void NoReadAutoMap <T>(T obj, IDataReader reader, bool propertyNameIgnoreCase,
bool skipNotExistProperty, char splitter, Action <IDataReader, T> manualMapper = null) where T : class
{
for (int i = 0; i < reader.FieldCount; i++)
{
string[] pNames = reader.GetName(i).Split(new char[] { splitter }, StringSplitOptions.RemoveEmptyEntries);
object val = DataMapperHelper.ConvertIfEnum(reader[i], typeof(T), pNames, propertyNameIgnoreCase, skipNotExistProperty);
FillFieldValue(obj, pNames, val, propertyNameIgnoreCase, skipNotExistProperty);
}
if (manualMapper != null)
{
manualMapper(reader, obj);
}
}