Ignore null values in context update
<p>I have a large model which has been partially updated via deserialization.  Since it has only been partially updated I would like to ignore any null values when I pass this to my entity framework update.  Ultimately the <code>EntityState.Modified</code> is set but the issue I am having is that all fields are updated.  This means anything that was null is now blanked in the database.<br>
Is it possible to change this default behavior through a setting or override a method to check for null?  It seems that since the context is expecting the full model I cannot simply set only a few values.<br>
I've verified this by mapping only what I need to modify and the same behavior occurs.</p>