How to fix the System.InvalidOperationException: The property ‘PropertyID’ is part of the object’s key information and cannot be modified problem

Often times when you are using Entity Framework and trying to update objects using the handy

db.Entry(useableProperty).CurrentValues.SetValues(property);

Method you will encounter the error

InvalidOperationException: The property ‘PropertyID’ is part of the object’s key information and cannot be modified problem

After lots of thought I came across the remarkably simple answer, to wit – the PropertyID field is not being EXPLICITLY included in the object you are passing back to the controller.  Just put that in a “HiddenFor and you’re all set.

 

Written By Steve French

 

This entry was posted on Monday, November 2nd, 2015 at 6:32 pmand is filed under How To Fix . You can follow any comments to this entry through the RSS 2.0 feed. You can leave a comment, or trackback from your own site.

 

 

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