使用 IsloatedStorageSettings 保存自定义对象
我试图在isolatedStorageSettings 中保存一个对象，以保存我的游戏的高分，但每当我尝试保存该对象的更新副本时，C# 似乎认为该对象没有更改。我尝试为 HighScores 类创建自定义 Equals 函数，但这似乎没有帮助。
知道我做错了什么吗？
谢谢
public bool AddOrUpdateValue(string Key, Object value)
{
bool valueChanged = false;
// If the key exists
if (isolatedStore.Contains(Key))
{
// If the value has changed
if (isolatedStore[Key] != value) //This keeps returning false
{
// Store the new value
isolatedStore[Key] = value;
valueChanged = true;
}
}
// Otherwise create the key.
else
{
isolatedStore.Add(Key, value);
valueChanged = true;
}
return valueChanged;
}
//This is located inside the HighScores class
public bool Equals(HighScores newHighScores)
{
for (int i = 0; i < highScores.Length; i++)
{
if (!highScores[i].Name.Equals(newHighScores.GetIndex(i).Name))
{
return false;
}
if (!highScores[i].Time.Equals(newHighScores.GetIndex(i).Time))
{
return false;
}
}
return true;
}
I'm trying to save an object in IsolatedStorageSettings to save the high scores for my game, but whenever I try to save an updated copy of the object C# seems to think the object hasn't changed. I tried creating a custom Equals function for the HighScores class but that doesn't seem to help.
Any idea what I'm doing wrong?
Thanks
public bool AddOrUpdateValue(string Key, Object value)
{
bool valueChanged = false;
// If the key exists
if (isolatedStore.Contains(Key))
{
// If the value has changed
if (isolatedStore[Key] != value) //This keeps returning false
{
// Store the new value
isolatedStore[Key] = value;
valueChanged = true;
}
}
// Otherwise create the key.
else
{
isolatedStore.Add(Key, value);
valueChanged = true;
}
return valueChanged;
}
//This is located inside the HighScores class
public bool Equals(HighScores newHighScores)
{
for (int i = 0; i < highScores.Length; i++)
{
if (!highScores[i].Name.Equals(newHighScores.GetIndex(i).Name))
{
return false;
}
if (!highScores[i].Time.Equals(newHighScores.GetIndex(i).Time))
{
return false;
}
}
return true;
}
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评论（2）
您还没有实现相等运算符 '==' 和 '!=' 并且这些比较引用相等，您将提供映射到您的 'Equals' 方法的实现
http://msdn.microsoft.com/en-us/library/ms173147%28v=vs .80%29.aspx
You haven't implemented the equality operators '==' and '!=' and these compare reference equality, you are going to have provide the implementation which maps on to your 'Equals' method
http://msdn.microsoft.com/en-us/library/ms173147%28v=vs.80%29.aspx
您应该执行isolatedStore.Save()来提交更改
You should do isolatedStore.Save() to commit the changes