यहाँ एक समाधान है जो मुझे बनाया है:
/// <summary>
/// Copies the data of one object to another. The target object gets properties of the first.
/// Any matching properties (by name) are written to the target.
/// </summary>
/// <param name="source">The source object to copy from</param>
/// <param name="target">The target object to copy to</param>
public static void CopyObjectData(object source, object target)
{
CopyObjectData(source, target, String.Empty, BindingFlags.Public | BindingFlags.Instance);
}
/// <summary>
/// Copies the data of one object to another. The target object gets properties of the first.
/// Any matching properties (by name) are written to the target.
/// </summary>
/// <param name="source">The source object to copy from</param>
/// <param name="target">The target object to copy to</param>
/// <param name="excludedProperties">A comma delimited list of properties that should not be copied</param>
/// <param name="memberAccess">Reflection binding access</param>
public static void CopyObjectData(object source, object target, string excludedProperties, BindingFlags memberAccess)
{
string[] excluded = null;
if (!string.IsNullOrEmpty(excludedProperties))
{
excluded = excludedProperties.Split(new char[1] { ',' }, StringSplitOptions.RemoveEmptyEntries);
}
MemberInfo[] miT = target.GetType().GetMembers(memberAccess);
foreach (MemberInfo Field in miT)
{
string name = Field.Name;
// Skip over excluded properties
if (string.IsNullOrEmpty(excludedProperties) == false
&& excluded.Contains(name))
{
continue;
}
if (Field.MemberType == MemberTypes.Field)
{
FieldInfo sourcefield = source.GetType().GetField(name);
if (sourcefield == null) { continue; }
object SourceValue = sourcefield.GetValue(source);
((FieldInfo)Field).SetValue(target, SourceValue);
}
else if (Field.MemberType == MemberTypes.Property)
{
PropertyInfo piTarget = Field as PropertyInfo;
PropertyInfo sourceField = source.GetType().GetProperty(name, memberAccess);
if (sourceField == null) { continue; }
if (piTarget.CanWrite && sourceField.CanRead)
{
object targetValue = piTarget.GetValue(target, null);
object sourceValue = sourceField.GetValue(source, null);
if (sourceValue == null) { continue; }
if (sourceField.PropertyType.IsArray
&& piTarget.PropertyType.IsArray
&& sourceValue != null)
{
CopyArray(source, target, memberAccess, piTarget, sourceField, sourceValue);
}
else
{
CopySingleData(source, target, memberAccess, piTarget, sourceField, targetValue, sourceValue);
}
}
}
}
}
private static void CopySingleData(object source, object target, BindingFlags memberAccess, PropertyInfo piTarget, PropertyInfo sourceField, object targetValue, object sourceValue)
{
//instantiate target if needed
if (targetValue == null
&& piTarget.PropertyType.IsValueType == false
&& piTarget.PropertyType != typeof(string))
{
if (piTarget.PropertyType.IsArray)
{
targetValue = Activator.CreateInstance(piTarget.PropertyType.GetElementType());
}
else
{
targetValue = Activator.CreateInstance(piTarget.PropertyType);
}
}
if (piTarget.PropertyType.IsValueType == false
&& piTarget.PropertyType != typeof(string))
{
CopyObjectData(sourceValue, targetValue, "", memberAccess);
piTarget.SetValue(target, targetValue, null);
}
else
{
if (piTarget.PropertyType.FullName == sourceField.PropertyType.FullName)
{
object tempSourceValue = sourceField.GetValue(source, null);
piTarget.SetValue(target, tempSourceValue, null);
}
else
{
CopyObjectData(piTarget, target, "", memberAccess);
}
}
}
private static void CopyArray(object source, object target, BindingFlags memberAccess, PropertyInfo piTarget, PropertyInfo sourceField, object sourceValue)
{
int sourceLength = (int)sourceValue.GetType().InvokeMember("Length", BindingFlags.GetProperty, null, sourceValue, null);
Array targetArray = Array.CreateInstance(piTarget.PropertyType.GetElementType(), sourceLength);
Array array = (Array)sourceField.GetValue(source, null);
for (int i = 0; i < array.Length; i++)
{
object o = array.GetValue(i);
object tempTarget = Activator.CreateInstance(piTarget.PropertyType.GetElementType());
CopyObjectData(o, tempTarget, "", memberAccess);
targetArray.SetValue(tempTarget, i);
}
piTarget.SetValue(target, targetArray, null);
}
प्रतिबिंब-आधारित दृष्टिकोण पर कुछ वास्तविक मीट्रिक प्राप्त करें। आप पाते हैं कि असली दुनिया का प्रदर्शन पूरी तरह से पर्याप्त है - मैंने किया! यदि नहीं, तो क्रिस बल्लार्ड ने जिस तरह से सुझाव दिया ... – kpollock