Вот мой метод обновления сущности RIA (для временного кадра Ef6):
public static void UpdateSegment(ISegment data)
{
if (data == null) throw new ArgumentNullException("The expected Segment data is not here.");
var context = GetContext();
var originalData = context.Segments.SingleOrDefault(i => i.SegmentId == data.SegmentId);
if (originalData == null) throw new NullReferenceException("The expected original Segment data is not here.");
FrameworkTypeUtility.SetProperties(data, originalData);
context.SaveChanges();
}
Обратите внимание, что FrameworkTypeUtility.SetProperties()
- это крошечная функция полезности, которую я написал задолго до AutoMapper на NuGet:
public static void SetProperties<TIn, TOut>(TIn input, TOut output, ICollection<string> includedProperties)
where TIn : class
where TOut : class
{
if ((input == null) || (output == null)) return;
Type inType = input.GetType();
Type outType = output.GetType();
foreach (PropertyInfo info in inType.GetProperties())
{
PropertyInfo outfo = ((info != null) && info.CanRead)
? outType.GetProperty(info.Name, info.PropertyType)
: null;
if (outfo != null && outfo.CanWrite
&& (outfo.PropertyType.Equals(info.PropertyType)))
{
if ((includedProperties != null) && includedProperties.Contains(info.Name))
outfo.SetValue(output, info.GetValue(input, null), null);
else if (includedProperties == null)
outfo.SetValue(output, info.GetValue(input, null), null);
}
}
}