Can't deserialize with binaryFormatter after changing namespace of class

c#, deserialization

Solution

you forgot to replace the assembly name:

class TypeNameConverter : SerializationBinder
{
    public override Type BindToType(string assemblyName, string typeName)
    {
        typeName = typeName.Replace("MyOldNamespace", "MyNewNamespace");
        assemblyName = assemblyName.Replace("MyOldNamespace", "MyNewNamespace");
        return Type.GetType(string.Format("{0}, {1}", typeName, assemblyName));
    }
}

Problem

After changing the namespace of my class I can no longer deserialize the objects. I've implemented `SerializationBinder`. Example: ``` public class TypeNameConverter : SerializationBinder { public override Type BindToType(string assemblyName, string typeName) { typeName = typeName.Replace("MyOldNamespace", "MyNewNamespace"); return Type.GetType(string.Format("{0}, {1}", typeName, assemblyName)); } } BinaryFormatter bf = new BinaryFormatter(); bf.Binder = new TypeNameConverter(); ``` The exception I get is: 'System.Runtime.Serialization.TypeLoadExceptionHolder' cannot be converted to type 'MyNewNamespace.MyClass'

Original source

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