Developing with WebGrid 8.2 under Visual Studio 2005 and VB.Net
To create a calendar control, I place a textbox on the page and then bind an Asp.Net Ajax calendar extention ( http://www.asp.net/AJAX/AjaxControlToolkit/Samples/Calendar/Calendar.aspx ) to the textbox. I then add a WegGrid. In the designer, the calendar is 2 lines above the webgrid. When running the page and using the calendar, the monthly calender pop-up page opens but is "blocked" by the Webgrid. I only see the first week of the month. If I move the webgrid further down the page so that it outside the pop-up calendar's height, I see the full month. As a test, replaced the WebGrid with the standard GridView control, There is no problem - the calendar fully displays over the GridView.
Is there a setting that sets window order ( z-axis ) or allows window pop-ups ?
Yes, this is most probably a z-index related issue - the dropdown of the calendar in the Ajax Control Toolkit maybe has z-index lower than the z-index of the grid by default.
I can recommend the following forum post on the ASP.NET website for additional information:
http://forums.asp.net/p/1128843/1973643.aspx#1973643
But in general, I believe it could be a good idea to also try our popup calendar equivalent - WebDateChooser. Please, take a look at the following sample for details on how to use it (click on any Date column in the grid, and click the dropdown image to popup a calendar)
http://samples.infragistics.com/2008.2/webfeaturebrowser/WebDateChooser/Grid/webform2.aspx