如何静态分配 Dictionary<TKey, TValue> 值答案

【问题标题】：How to statically assign Dictionary<TKey, TValue> values如何静态分配 Dictionary<TKey, TValue> 值
【发布时间】：2012-12-22 08:36:42
【问题描述】：

如何将值静态分配给字典，其中值是另一个类/对象。喜欢下面的链接：C#: How can Dictionary<K,V> implement ICollection<KeyValuePair<K,V>> without having Add(KeyValuePair<K,V>)?

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

enum SettingKey
{
    userDBName,
    realName 
}

class SettingItem
{
    public string theValue { get; set; }
    public int theID { get; set; }
}

【问题讨论】：

标签： c# collections

【解决方案1】：

您必须初始化对象：

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 }}   
};

【讨论】：

【解决方案2】：

使用object initializer 设置SettingItem 对象的值

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 }}   
};

【讨论】：