Hi,

I want to use the ASPxScheduler, and I want to customize the pop up window for creating a New Appointment. I was able to customize it, by following a guide here, create UserAppointmentForm.ascx file in My forms folder, etc. The customized pop up window is done in the .ascx file, which is connected to the .aspx file where the ASPxScheduler and Calendar is found.

One of the components i have in my pop up is a Gridview, with a checkbox in the Gridview Template field. I am using javascript in my .ascx file to select all the checkbox in my Gridview by clicking a checkbox header. I get a runtime error. I have not been able to retrieve data from the DB either. I tried my code by placing it in a normal .aspx file and it works perfectly, but it does not work in the popup, .ascx file. Does anybody know how I will be able to do this? i am new in using DevExpress...