这是一个非常奇怪的行为,但很容易解决。
首先,您需要像这样的某种类型的解析程序:
T ParseEnum<T>(object value)
{
if (value == null)
return default(T);
return (T)Enum.Parse(typeof(T), value.ToString());
}
var _Settings = ApplicationData.Current.LocalSettings.Values;
// write
_Settings["Color"] = MyColors.Red.ToString()
// read
return ParseEnum<MyColors>(_Settings["Color"]);
public void Write<T>(string key, T value)
{
var settings = ApplicationData.Current.LocalSettings;
if (typeof(T).GetTypeInfo().IsEnum)
{
settings.Values[key] = Convert.ChangeType(value, Enum.GetUnderlyingType(typeof(T)));
return;
}
settings.Values[key] = value;
}
public bool TryRead<T>(string key, out T value)
{
var settings = ApplicationData.Current.LocalSettings;
object tmpValue;
if (settings.Values.TryGetValue(key, out tmpValue))
{
if (tmpValue == null)
{
value = default(T);
return true;
}
if (typeof(T).GetTypeInfo().IsEnum)
{
value = (T)Enum.ToObject(typeof(T), tmpValue);
return true;
}
if (tmpValue is T)
{
value = (T) tmpValue;
return true;
}
}
value = default(T);
return false;
}
使用示例
// write
Write("Color", MyColors);
// read
MyColor value;
TryRead<MyColor>("Color", out value)
ToString()
似乎有些过度,而且在C++项目中无法工作。) - James McNellis