Comments on: Cloning Object Properties via Reflection

By: Steve Jensen

Steve Jensen — Sun, 03 Jul 2011 05:30:41 +0000

here is the code that works in VS 2010 VB.NET:
Public Module ReflectionExtensions
”’
”’ Clone properties from an original object to a destination object.
”’ See for more info: http://goneale.com/2009/02/16/cloning-object-properties-via-reflection/
”’ NOTE: Does not currently handle list’s.
”’
”’
”’
”’
”’
_
Public Sub CloneProperties(Of T1, T2)(ByVal origin As T1, ByVal destination As T2)
‘ Instantiate if necessary
If destination Is Nothing Then
Throw New ArgumentNullException(“destination”, “Destination object must first be instantiated.”)
End If
‘ Loop through each property in the destination
For Each destinationProperty As Reflection.PropertyInfo In destination.[GetType]().GetProperties()
‘ find and set val if we can find a matching property name and matching type in the origin with the origin’s value
If origin IsNot Nothing AndAlso destinationProperty.CanWrite Then
For Each originProperty As Reflection.PropertyInfo In origin.[GetType]().GetProperties()
If destinationProperty.CanWrite AndAlso originProperty.CanRead AndAlso (originProperty.Name = destinationProperty.Name AndAlso originProperty.PropertyType Is destinationProperty.PropertyType) Then
destinationProperty.SetValue(destination, originProperty.GetValue(origin, Nothing), Nothing)
End If
Next
End If
Next

End Sub
End Module

By: Ivan

Ivan — Thu, 08 Apr 2010 07:20:04 +0000

Cool!
Thanks.

By: Andy

Andy — Thu, 10 Sep 2009 03:50:46 +0000

For a collection type property, it just clone the reference, not a deep clone, so if you add a new item to the cloned collection, the sourcee collection also add a new one, this is what I don’t need, maybe some people also doesn’t need.

Before read your article, I also write such a methond, the main problem is I can’t deep clone a collection type property.

By: Graham O'Neale

Graham O'Neale — Mon, 16 Feb 2009 23:18:58 +0000

No problem!

By: John Coxhead

John Coxhead — Mon, 16 Feb 2009 15:45:24 +0000

Exctly what I was looking for ! Thanks !

By: DotNetShoutout

DotNetShoutout — Mon, 16 Feb 2009 11:35:44 +0000

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