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    <p>Objects added to the <code>State</code> collection are serialized with the DataContractSerializer. Ensure that anything you're saving there can be serialized that way.<br> Any serialization errors are silently ignored.</p> <p><strong>Update</strong></p> <p>Here's a simplified version of your Sprite object: </p> <pre><code>[DataContract] public class Sprite { [DataMember] public Vector2 Position; [DataMember] public Vector2 Size; [DataMember] public Texture2D Texture; public Sprite() { } public Sprite(Vector2 position) { Position = position; } public Sprite(Vector2 position, Vector2 size) { Position = position; Size = size; } public Sprite(Vector2 position, Texture2D texture) { Position = position; Texture = texture; Size = new Vector2(Texture.Width, Texture.Height); } } </code></pre> <p>And here's an example of it being serialized and deserialized:</p> <p>// Sprite serialization test var sprite1 = new Sprite(new Vector2(12.34f, 56.78f));</p> <pre><code>Sprite sprite2; using (var memStr = new MemoryStream()) { var serializer = new DataContractSerializer(typeof(Sprite)); serializer.WriteObject(memStr, sprite1); memStr.Position = 0; var sr = new StreamReader(memStr); var serialized = sr.ReadToEnd(); // serialized now looks like // &lt;Sprite xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/MiscExperiments"&gt;&lt;Position xmlns:d2p1="http://schemas.datacontract.org/2004/07/Microsoft.Xna.Framework"&gt;&lt;d2p1:X&gt;12.34&lt;/d2p1:X&gt;&lt;d2p1:Y&gt;56.78&lt;/d2p1:Y&gt;&lt;/Position&gt;&lt;Size xmlns:d2p1="http://schemas.datacontract.org/2004/07/Microsoft.Xna.Framework"&gt;&lt;d2p1:X&gt;0&lt;/d2p1:X&gt;&lt;d2p1:Y&gt;0&lt;/d2p1:Y&gt;&lt;/Size&gt;&lt;Texture xmlns:d2p1="http://schemas.datacontract.org/2004/07/Microsoft.Xna.Framework.Graphics" i:nil="true" /&gt;&lt;/Sprite&gt; memStr.Position = 0; sprite2 = (Sprite)serializer.ReadObject(memStr); // sprite2 now contains the same as // sprite2.Position = { X:12.34, Y:56.78 } } </code></pre>
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    1. POWP7 tombstoning, saving sprite into Current state not working
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    1. USMatt Lacey
    1. USMatt Lacey
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    1. COI have edited my post. I wasnt able to make it serializable. My code is there. Please look at it.
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      1. USVelchester
    2. COThe first thing that jumps out at me is that you have no parameterless constructor. Which you'll need for deserialising. Alternatively, you could serialize (and desrialize) the object yourself and then just add the resultant string to the State object.
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    3. COI tried parameterless constructor and it didnt work
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