C# 如何静态分配字典值

如果值是另一个类/对象，如何静态地为字典赋值。如以下链接所示：

使用可设置SettingItem对象的值

使用可设置SettingItem对象的值

---

必须初始化对象：

public Dictionary<SettingKey, SettingItem> List =
    new Dictionary<SettingKey, SettingItem>()
{
    {SettingKey.userDBName, new SettingItem { theValue = "user-name", theID  = 1 }},
    {SettingKey.realName,   new SettingItem { theValue = "real-name", theID  = 2 }}   
};

---

必须初始化对象：

public Dictionary<SettingKey, SettingItem> List =
    new Dictionary<SettingKey, SettingItem>()
{
    {SettingKey.userDBName, new SettingItem { theValue = "user-name", theID  = 1 }},
    {SettingKey.realName,   new SettingItem { theValue = "real-name", theID  = 2 }}   
};

public Dictionary<SettingKey, SettingItem> List =
    new Dictionary<SettingKey, SettingItem>()
{
    {SettingKey.userDBName, new SettingItem { theValue = "user-name", theID  = 1 }},
    {SettingKey.realName,   new SettingItem { theValue = "real-name", theID  = 2 }}   
};