When you use a calendarextender with a popupbuttonid, if you press <enter> in the page the calender will be open.
You can test this in the calendar sample page : http://www.asp.net/AJAX/AjaxControlToolkit/Samples/Calendar/Calendar.aspx
Just click in the first textbox at the top of the page and then press <enter>, the last calendar will be opened....
Comments: We were unable to reproduce this issue with the latest version of the AJAX Control Toolkit. Would you provide a sample project that uses AJAX Control Toolkit v15.1?
You can test this in the calendar sample page : http://www.asp.net/AJAX/AjaxControlToolkit/Samples/Calendar/Calendar.aspx
Just click in the first textbox at the top of the page and then press <enter>, the last calendar will be opened....
Comments: We were unable to reproduce this issue with the latest version of the AJAX Control Toolkit. Would you provide a sample project that uses AJAX Control Toolkit v15.1?