private void ShowMessage(int messageId, int type)
    {
        int     id  = Convert.ToInt32(Request.QueryString["id"]);
        Message msg = MessageManager.GetMessageById(id);

        if (msg != null)
        {
            if (type == 1)
            {
                lblText.Text     = "发件人:";
                lblFromUser.Text = msg.FromUser.UserName;
                ReadCommonMessageManager.UpdateReadCommonMessage(msg.MessageId, ((Session["Login"] as User).UserId));
            }
            if (type == 2)
            {
                lblText.Text = "收件人:";
                IList <MessageToUser> mtu = MessageToUserManager.GetAllMessageToUserByMessageId(id);
                foreach (MessageToUser m in mtu)
                {
                    lblFromUser.Text += "  " + m.ToUser.UserName;
                }
            }
            else
            {
                lblText.Text     = "作  者:";
                lblTime.Text     = "删除时间";
                lblFromUser.Text = msg.FromUser.UserName;
            }
            lblTitle.Text    = msg.Title;
            lblType.Text     = "***" + msg.Type.MessageTypeName + "***";
            txtContent.Text  = msg.Content;
            lblSendTime.Text = string.Format("{0:yyyy-MM-dd HH:mm:ss}", msg.RecordTime);
        }
    }
 protected void Page_Load(object sender, EventArgs e)
 {
     if (!IsPostBack)
     {
         if (Request.QueryString["MessageId"] != null)
         {
             int     messageId = Convert.ToInt32(Request.QueryString["MessageId"]);
             Message message   = MessageManager.GetMessageById(messageId);
             this.txtMessageContent.Text = message.Content;
             User user = (User)Session["Login"];
             ReadCommonMessageManager.UpdateReadCommonMessage(messageId, user.UserId);
         }
     }
 }