privateIsolatedStorageSettings setting = IsolatedStorageSettings.ApplicationSettings;//创建键值对对象
//存储键值对
public void WirteIsolatedStorageSetting(string key, object value)
{
try
{
if (!setting.Contains(key))//根据键名判断键是否存在
{
setting.Add(key, value);//添加新的键值对数据
}
else
{
setting[key] = value;//重新设置已经存在的键的值
}
setting.Save();//永久保存键值对数据
}
catch (Exception e) { }
}
/// <summary>
/// 根据键值名读取相应的值
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public object ReadIsolatedStorageSetting(string key)
{
try
{
if (setting.Contains(key))
{
return setting[key];
}
else
{
return null;
}
}
catch (Exception e) { return null; }
}
/// <summary>
/// 遍历键值对集合,清除键值对
/// </summary>
/// <returns></returns>
public bool ClearCacheKeys()
{
try
{
foreach (string keypair in setting.Keys)//遍历键值对集合中的键,并根据键名从键值对集合中清除此键
{
if (setting.Contains(keypair))
{
setting.Remove(keypair);
}
}
setting.Save();
return true;
}
catch (Exception e)
{
return false;
}
}
/// <summary>
/// 获取键值
/// </summary>
/// <returns></returns>
private string KeyValues() { System.Text.StringBuilder sb = new System.Text.StringBuilder("Values: "); foreach (Object v in settings.Values) { sb.Append(v.ToString() + "; "); } return sb.ToString(); }