Not that I knew; it is one or the other. The only way I can think of is to set it to use a popup control, and then add a JS event handler to focus the text field and manually find the calendar expander, and there might be a show () method so that you can manually trigger the trigger potentially. Not 100% sure. To find out, follow these steps:
function textboxFocus() { var c = $find("<%= calextenderid.ClientID %>"); //can use firebug to see if c.open method exists, or check for something else }
Again, I never did this, so I'm not 100% sure.
NTN.
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