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Object Cloning using MVVMLight

Posted on 2011-03-01
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Last Modified: 2012-06-27
We want to create a copy of the object being edited before making any changes to the objects. We are using MVVMLight with WPF. Kindly suggest some approaches to implement object cloning using MVVMLight.
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Question by:dineshwins
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LVL 40

Expert Comment

by:Kyle Abrahams
ID: 35007565
In your view model just make a backup of the object.

Dim backup as MyService.MyObject
Dim theObject as MyService.MyObject


Sub cmdEdit_Click
  backup = theobject
  edit = true
end sub

Sub RollBack
  theobject = backup
end sub
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Author Comment

by:dineshwins
ID: 35024236
@ged325: I assume the above will create a shallow copy whereas I require the Deep Copy of the object being edited so that at any stage user can revert back to the original values.
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LVL 40

Expert Comment

by:Kyle Abrahams
ID: 35027051
then instead of backup use clone.

backup = theobject.Clone()

theobject = backup.Clone()

http://silverlightarvind.blogspot.com/2010/05/c-shallow-copy-vs-deep-copy.html

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Accepted Solution

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dineshwins earned 0 total points
ID: 35125641
I have solved this issue by creating an extension method for making clones of the entities using serialization.
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Author Closing Comment

by:dineshwins
ID: 35163591
Nobody was able to provide me with the required solution. I did my RnD & found a solution to the problem.
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