/// <summary>
///获取当前用户的ID。
///throws<see cref=“shareplatformException”/>if<see cref=“ishareplatformsession.userid”/>为空。
/// </summary>
/// <param name="session">会话对象。</param>
/// <returns>当前用户的ID。</returns>
public static string GetUserId(this ISharePlatformSession session)
{
if (string.IsNullOrWhiteSpace(session.UserId))
{
throw new SharePlatformException("session.userid为空！可能用户没有登录。");
}
return(session.UserId);
}
/// <summary>
/// Creates <see cref="UserIdentifier"/> from given session.
/// Returns null if <see cref="ISharePlatformSession.UserId"/> is null.
/// </summary>
/// <param name="session">The session.</param>
public static UserIdentifier ToUserIdentifier(this ISharePlatformSession session)
{
return(session.UserId == null
? null
: new UserIdentifier(session.GetUserId()));
}