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copied!<p>You're not changing anything about the object a1 points to, but instead changing which object a1 points to.</p> <p><a href="http://dev.morethannothing.co.uk/valuevsreference/Valuevs.Reference3.png" rel="noreferrer">a = new Person(); b = a; b = new Person(); http://dev.morethannothing.co.uk/valuevsreference/Valuevs.Reference3.png</a></p> <p>Your example replaces "new Person { … }" with a string literal, but the principle is the same.</p> <p>The difference comes when you're changing properties of the object. Change the property of a value type, and it's not reflected in the original.</p> <p><a href="http://dev.morethannothing.co.uk/valuevsreference/Valuevs.Reference1.png" rel="noreferrer">a = new Person(); b = a; b.Name = …; http://dev.morethannothing.co.uk/valuevsreference/Valuevs.Reference1.png</a></p> <p>Change the property of a reference type, and it is reflected in the original.</p> <p><a href="http://dev.morethannothing.co.uk/valuevsreference/Valuevs.Reference2.png" rel="noreferrer">a = new Person(); b = a; b.Name = …; http://dev.morethannothing.co.uk/valuevsreference/Valuevs.Reference2.png</a></p> <p>p.s. Sorry about the size of the images, they're just from something I had lying around. You can see the full set at <a href="http://dev.morethannothing.co.uk/valuevsreference/" rel="noreferrer">http://dev.morethannothing.co.uk/valuevsreference/</a>, which covers value types, reference types, and passing value types by value and by reference, and passing reference types by value and by reference.</p>

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