/// <summary>
/// 刷新所有图片对象
/// </summary>
internal void RefreshAllImg(string jid)
{
if (!String.IsNullOrWhiteSpace(jid))
{
var itemObj = FriendList.FirstOrDefault(d => d.Jid == jid);
if (itemObj != null)
{
itemObj.Jid = jid;
}
}
}