Hi Faleh,
Please refer the following Client-side events that are supported by DropDownCalendar control.
ClientSideOnFocusIn-Specifies the client side handler which will be called when control is in focus.
ClientSideOnFocusOut-Specifies the client side handler which will be called when focus is shifted from the control.
ClientSideOnMouseOut-Specifies the client side handler which will be called when mouse pointer leaves the control.
ClientSideOnMouseOver-Specifies the client side handler which will be called when mouse pointer is moved over the control.
ClientSideOnValueChange-Specifies the client side handler which will be called when the value of control is changed.
But there is no Clientside event, while clicking the drop down(image) of the DropDownCalendar control.
Please refer the below link to get more details on this:
http://www2.syncfusion.com/ug_61/toolsweb/DropdownCalenderControlUsingTheDesigner.htmlPlease refer the browser sample which explains the functionalities of all Client side events from the below link:
http://www2.syncfusion.com/syncfusion2_0/Web/Tools.Web/samples/2.0/EditorsPackage/EditorsPackage/DataEditors-ClientSideEvents/cs/DataEditors-ClientSideEvents.aspxPlease let me know if you have any other concerns.
Regards,
Raji