.NET メモ

①二重ログイン

前ユーザのセッションをクリアすること

http://stackoverflow.com/questions/6840322/can-we-end-other-users-session

http://www.velocityreviews.com/forums/t108001-how-can-we-terminate-a-users-session.html

セッション　アクセス
http://forums.asp.net/t/1611102.aspx/1/10

http://stackoverflow.com/questions/7204039/is-it-possible-that-user-session-states-might-overlap-resulting-in-one-user-rea

http://www.eggheadcafe.com/articles/20030418.asp

②

IE无解，参考下面的URL
http://www.velocityreviews.com/forums/t75622-disable-forecolor.html

        //disable
        protected void Button1_Click(object sender, EventArgs e)
        {
            this.DropDownList1.Enabled = false;
            this.DropDownList1.Style[HtmlTextWriterStyle.BackgroundColor] = "#00CCFF";
        }

        //enable
        protected void Button2_Click(object sender, EventArgs e)
        {
            this.DropDownList1.Enabled = true;
            this.DropDownList1.Style[HtmlTextWriterStyle.BackgroundColor] = null;
        }