HELP Problem serializing a structure

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Hello,

I am having a problem trying to serialize this simple structure, I use it
in a collection class that derives from CollectionBase but I noticed that at
least for now the serialization exception ocurrs when i try to serialize
this structure (see below). The idea is that it would be serialized to:

< Param type="..." method="Get" required="true">something</Param>



I use the following to serialize:

WizarParameter wpar = new WizardParameter(typeof(int),
WizardParameterMethod.Get, true, "something");
StringWriter sw = new StringWriter();
XmlSerializer ser = new XmlSerializer(typeof(WizardParameter));
ser.Serialize(sw, wpar);

[Serializable]
[XmlRoot("Param")]
public struct WizardParameter

{

/// The system type contained by this parameter
[XmlAttribute("type")]
public System.Type Type;

/// The method that should be used to pass this paramete
[XmlAttribute("method")]
public WizardParameterMethod Method; /// enumeration

/// Whether the parameter is required or optional

[XmlAttribute("required")]
public bool IsRequired;

[XmlElement("key")]
public string Key;

public WizardParameter(Type type, WizardParameterMethod method, bool
required, string key)

{

this.Type = type;

this.Method = method;

this.IsRequired = required;

this.Key = key;

}

}


.

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