public override IMessage Invoke(IMessage msg)
{
var methodCall = (IMethodCallMessage)msg;
var method = (MethodInfo)methodCall.MethodBase;
var isSetMethod = method.Name.StartsWith("set_");
object result = null;
if (isSetMethod)
{
var propertyName = method.Name.Replace("set_", "");
var propertyInfo = typeof(T).GetProperties()
.First(p => p.Name == propertyName);
var valueBefore = propertyInfo.GetValue(_instance, null);
result = method.Invoke(_instance, methodCall.InArgs);
var valueAfter = propertyInfo.GetValue(_instance, null);
if (valueBefore != valueAfter)
{
_list.NotifyItemChanged(_instance, propertyName);
}
}
else if (method.Name == "FieldSetter")
{
var fieldName = methodCall.Args[1].ToString();
var newValue = methodCall.Args[2];
var fieldInfo = typeof(T).GetFields()
.First(f => f.Name == fieldName);
var valueBefore = fieldInfo.GetValue(_instance);
result = method.Invoke(_instance, methodCall.InArgs);
// Seems like we need to manually set the value using reflection (method.Invoke isn't doing anything here)
fieldInfo.SetValue(_instance, newValue);
if ((valueBefore == null && newValue != null) || !valueBefore.Equals(newValue))
{
_list.NotifyItemChanged(_instance, fieldName);
}
}
else
{
result = method.Invoke(_instance, methodCall.InArgs);
}
return(new ReturnMessage(result, null, 0, methodCall.LogicalCallContext, methodCall));
}