Hi, it looks like you are missing some quotation marks. Try this: string.Format(@"<script type=""text/javascript"">window.open('{0}', 'yourWin', '{1}');</script>" If that does not help, check your if-clauses. I tried the code myself and everything worked fine.

Hi, i try to use the Calendar control in a SharePoint-Webpart. Everything looks fine, except that i cannot use any button within the control or select any date. I create an instance of the calendar within the CreateChildControls-EventHandler, I set my styles in the PreRender-Eevent, and render the Calendar. Calendar calendarControl; protected override void CreateChildControls() { calendarControl = new Calendar(); this.Controls.Add(calendarControl); SetStyles(); } public override void RenderControl(HtmlTextWriter writer) { calendarControl.RenderControl(writer); } private void SetStyles() { calendarControl.Style.Add("vertical-align", "middle"); calendarControl.BackColor = Color.WhiteSmoke; calendarControl.NextMonthText = "Next"; calendarControl.PrevMonthText = "Prev"; calendarControl.Style.Add("float", "left"); calendarControl.Style.Add("margin-right", "30px"); calendarControl.TodayDayStyle.BackColor = Color.LightBlue; calendarControl.SelectorStyle.BackColor = Color.Wheat; calendarControl.DayRender += new DayRenderEventHandler(calendarControl _DayRender); } protected void calendarControl_DayRender(object sender, DayRenderEventArgs e) { if(e.Day.IsOtherMonth) e.Day.IsSelectable = false; else e.Day.IsSelectable = true; } Any Ideas why this does not work?