ComboBox Problem

sundar -- sundar@pacbell.net
Friday, December 20, 1996

Environment: Win3.1,VC++1.52,MFC

   I have a drop-down combo in a dialog. In the drop-down combobox are a
series of strings (entered using CComboBox.AddString()). Associated with
these strings are some integer values (using the SetItemData(...)
function) , which do not correspond directly to the indices but are some
random values.
        My requirement is that ,when ever the user selects an item from
the list box of the drop down comboBox, then the Edit box (of the drop
down combo) should display the attached item value and  not the selected
string.
        I tried Subclassing the ComboBox and trapping the ComboBox
CBN_CLOSEUP message. Then I retrieve the value associated with the
selected string using the GetItemData(). I tried convert the data
received  into a text string and use the commands to set it in
the Edit Window of the comboBox (for eg. SetWindowText()). However, this
does'nt seem to help. Is this the way to do it or is there some other
better method ? 

                        Any suggestions would be of help
                        Thanks in advance,
                                                        Sundar

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Rail J. Rogut -- railro@earthlink.net
Saturday, December 21, 1996

sundar wrote:
> 
> Environment: Win3.1,VC++1.52,MFC
> 
>    I have a drop-down combo in a dialog. In the drop-down combobox are a
> series of strings (entered using CComboBox.AddString()). Associated with
> these strings are some integer values (using the SetItemData(...)
> function) , which do not correspond directly to the indices but are some
> random values.
>         My requirement is that ,when ever the user selects an item from
> the list box of the drop down comboBox, then the Edit box (of the drop
> down combo) should display the attached item value and  not the selected
> string.
>         I tried Subclassing the ComboBox and trapping the ComboBox
> CBN_CLOSEUP message. Then I retrieve the value associated with the
> selected string using the GetItemData(). I tried convert the data
> received  into a text string and use the commands to set it in
> the Edit Window of the comboBox (for eg. SetWindowText()). However, this
> does'nt seem to help. Is this the way to do it or is there some other
> better method ?
> 
>                         Any suggestions would be of help
>                         Thanks in advance,
>                                                         Sundar

Wouldn't it be better to use a list box and a separate edit control -
then fill the edit control with the return of GetItemDataPtr().

	Rail
	Oceanway Recording
	railro@earthlink.net

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Syed -- sxs296@psu.edu
Saturday, January 04, 1997

At 02:00 PM 12/20/96 -0800, you wrote:
>Environment: Win3.1,VC++1.52,MFC
>
>   I have a drop-down combo in a dialog. In the drop-down combobox are a
>series of strings (entered using CComboBox.AddString()). Associated with
>these strings are some integer values (using the SetItemData(...)
>function) , which do not correspond directly to the indices but are some
>random values.
>        My requirement is that ,when ever the user selects an item from
>the list box of the drop down comboBox, then the Edit box (of the drop
>down combo) should display the attached item value and  not the selected
>string.
I know that this does not answer your question directly, but did you know
that a combo box is composed of a list box and an edit control.? Therefore,
you might need to trap the notification sent by the edit control and tailor
it to what you  really want to do. Good luck!

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