这是发货时的答案。我最初错过的重要部分是：
- 您不能写入 IEnumerable (foreach) 内的元素，
- 忘记尝试强制转换为数组并使用 [] 运算符（只需使用 get/set 值），
- 有时在你意想不到的地方需要拳击
请注意，此序列化程序适用于 FIXED SIZE 类（属性类用于指定字符串长度，反序列化的目标必须具有所有组件的默认初始化并且没有空值）。这用于 C# 内置序列化程序过于冗长而无法将值存储到空间受限的嵌入式设备的闪存中的情况。它不支持多维数组（读者练习）。
希望有人觉得这有帮助，感谢您的建议，
最好的问候，戴夫
private static void navelGaze(string name, int level, ref object val, int storageSize)
{
Debug.Assert(val != null); // can happen with an unitialized string (please init to "")
Type t = val.GetType();
StringBuilder diagString = new StringBuilder(100);
diagString.Append(name); diagString.Append(": ");
if (t.IsArray)
{
Type t_item = t.GetElementType();
Array ar = val as Array;
int len = ar.Length;
diagString.Append("Type="); diagString.Append(t_item.Name);
diagString.Append("["); diagString.Append(len); diagString.Append("]");
if (t_item.BaseType.Name == "ValueType")
{
// array of primitive types like Bool or Int32...
diagString.Append(", value=[");
// Because C# does not permit modification of the iteration object
// in "foreach", nor subscript operations on an array of primitive values,
// use "GetValue/Setvalue" and a regular index iteration.
for(int idx=0; idx<len; idx++) {
object arrayElementBoxObj = ar.GetValue(idx);
Munger(ref arrayElementBoxObj, 0);
diagString.Append(arrayElementBoxObj.ToString());
diagString.Append(", ");
if (currentOperation == SerializerOperation_T.Deserialize)
ar.SetValue(arrayElementBoxObj, idx);
}
diagString.Append("]");
WriteDiagnostic(level, diagString.ToString());
return;
}
else
{
// This is an array of a complex type; recurse for each element in the array...
WriteDiagnostic(level, diagString.ToString());
// The following cast operation is required to subscript 'ar'...
// Note an array of a primitive type like 'int' cannot be cast to an array of objects.
object[] vResObjArray = (object[])ar;
for(int i=0; i<len; i++) {
object boxObj = vResObjArray[i];
navelGaze(name + "[" + i + "]", level + 1, ref boxObj, 0);
if (currentOperation == SerializerOperation_T.Deserialize)
{
// Setting vResObjArray[x] DOES set the original object passed into
// this function, as required for deserialization.
vResObjArray[i] = boxObj;
}
}
return;
}
}
else if (t.Name == "String")
{
// 'String' is actually a class, but normal class handling below blows up...
diagString.Append("Type="); diagString.Append(t.Name);
diagString.Append(", value=");
Munger(ref val, storageSize);
diagString.Append(val.ToString());
}
else if (t.IsClass)
{
// Decompose class and recurse over members
WriteDiagnostic(level, diagString + "Class " + t.Name);
// Note that custom attributes are associated with the class's fields and properties,
// NOT the type of the value of the fields/properties, so this must be checked here
// prior recursion to process the values...
// GetFields does not get the PROPERTIES of the object, that's very annoying...
FieldInfo[] fi = val.GetType().GetFields();
foreach (FieldInfo f in fi)
{
if (f.IsStatic) continue; // ignore class constants
// Skip this if the FIELD is marked [HSB_GUI_SerializeSuppress]
HSB_GUI_SerializeSuppressAttribute[] GUI_field_suppressSerializationAtt =
(HSB_GUI_SerializeSuppressAttribute[])
f.GetCustomAttributes(typeof(HSB_GUI_SerializeSuppressAttribute), true);
if (GUI_field_suppressSerializationAtt.Length > 0)
continue; // this field is marked with "suppress serialization to GUI save are"
// Get optional size specifier (required for strings)
int nextLevelStorageSize = 0;
HSB_GUI_SerializableAttribute[] HSB_GUI_SerializableAtt =
(HSB_GUI_SerializableAttribute[])
f.GetCustomAttributes(typeof(HSB_GUI_SerializableAttribute), true);
if (HSB_GUI_SerializableAtt.Length > 0)
nextLevelStorageSize = HSB_GUI_SerializableAtt[0].StorageLength;
// box, and gaze into this field...
object boxObj = f.GetValue(val);
// could replace null with default object constructed here
navelGaze(f.Name, level + 1, ref boxObj, nextLevelStorageSize);
if (currentOperation == SerializerOperation_T.Deserialize)
f.SetValue(val, boxObj);
}
// Now iterate over the PROPERTIES
foreach (PropertyInfo prop in /*typeof(T)*/ val.GetType().GetProperties())
{
// Skip this if the PROPERTY is marked [HSB_GUI_SerializeSuppress]
HSB_GUI_SerializeSuppressAttribute[] GUI_prop_suppressSerializationAtt =
(HSB_GUI_SerializeSuppressAttribute[])
prop.GetCustomAttributes(typeof(HSB_GUI_SerializeSuppressAttribute), true);
if (GUI_prop_suppressSerializationAtt.Length > 0)
continue; // this property is marked with "suppress serialization to GUI save are"
// not relevant; does not occur: if (!type.IsSerializable) continue;
// Get optional size specifier (required for strings)
int nextLevelStorageSize = 0;
HSB_GUI_SerializableAttribute[] HSB_GUI_SerializableAtt =
(HSB_GUI_SerializableAttribute[])
prop.GetCustomAttributes(typeof(HSB_GUI_SerializableAttribute), true);
if (HSB_GUI_SerializableAtt.Length > 0)
nextLevelStorageSize = HSB_GUI_SerializableAtt[0].StorageLength;
// box, and gaze into this field...
object boxObj = prop.GetValue(val, null);
// could replace null with default object constructed here
navelGaze("Property " + prop.Name, level + 1, ref boxObj, nextLevelStorageSize);
if (currentOperation == SerializerOperation_T.Deserialize)
prop.SetValue(val, boxObj, null);
}
return;
}
else if (t.IsEnum)
{
Munger(ref val, 0);
diagString.Append("Enum ("); diagString.Append(t.Name); diagString.Append("), value=");
diagString.Append(val.ToString()); diagString.Append(", raw value="); diagString.Append((int)val);
}
else
{
Munger(ref val, 0);
diagString.Append("Type="); diagString.Append(t.Name);
diagString.Append(", value="); diagString.Append(val.ToString());
}
WriteDiagnostic(level,diagString.ToString());
}
public static HSB_Settings_Class DeserializeResult(byte[] datastream)
{
Debug.Assert(datastream.Length == 0x0600);
idx = 0;
buf = datastream;
currentOperation = SerializerOperation_T.Deserialize;
HSB_Settings_Class new_HSB_settings = new HSB_Settings_Class();
object boxObj = new_HSB_settings;
navelGaze("DeserializeResult", 0, ref boxObj, 0);
new_HSB_settings = (HSB_Settings_Class)boxObj;
Console.WriteLine("==== Deserialization used a total of " + idx.ToString() + " bytes (out of 1536 available) ====");
return new_HSB_settings;
}
public static byte[] SerializeHSBsettings(ref HSB_Settings_Class hsbset)
{
idx = 0;
currentOperation = SerializerOperation_T.Serialize;
object boxObj = hsbset;
navelGaze("SerializeHSB", 0, ref boxObj, 0);
Console.WriteLine("==== Serialization used a total of "+idx.ToString() + " bytes (out of 1536 available) ====");
return buf;
}