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    <p>Well the list is always empty to begin with, are you setting it via <code>myClass.value = new List&lt;...&gt;();</code> ? Also have you saved the serialized data in both binary and xml formats so you can verify data is actually being saved?</p> <p>Just a note as well, if you are using 2.0+ you don't have to implement ISerializable if you don't need to control the absolute serialization, you can change value to a public property and it will serialize on it's own.</p> <p>Edit: The following case seems to serialize and deserialize fine for me, I am posting this incase I am misunderstanding the question as a whole.</p> <p>Ignoring the nasty test code, hopefully this helps a little.</p> <pre><code> [Serializable] public class OType { public int SomeIdentifier { get; set; } public string SomeData { get; set; } public override string ToString() { return string.Format("{0}: {1}", SomeIdentifier, SomeData); } } [Serializable] public class MyClass : ISerializable { public List&lt;OType&gt; Value; public MyClass() { } public MyClass(SerializationInfo info, StreamingContext context) { this.Value = (List&lt;OType&gt;)info.GetValue("value", typeof(List&lt;OType&gt;)); } void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context) { info.AddValue("value", Value, typeof(List&lt;OType&gt;)); } } ... var x = new MyClass(); x.Value = new OType[] { new OType { SomeIdentifier = 1, SomeData = "Hello" }, new OType { SomeIdentifier = 2, SomeData = "World" } }.ToList(); var xSerialized = serialize(x); Console.WriteLine("Serialized object is {0}bytes", xSerialized.Length); var xDeserialized = deserialize&lt;MyClass&gt;(xSerialized); Console.WriteLine("{0} {1}", xDeserialized.Value[0], xDeserialized.Value[1]); </code></pre> <p>Forgot the output..</p> <blockquote> <p>Serialized object is 754bytes</p> <p>1: Hello 2: World</p> </blockquote>
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    1. COI need to implement iserializable because I'm serializing some bitmaps (not shown) and you can't directly serialize a bitmap the easy way without getting a gdi error. Like I said, the list is _never_ empty. Also: I have not serialized the data in xml format. Will look into it.
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      1. USSteven Evers
 

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