How to determine if a Listbox item is Disabled?

[vaxman9]

Good Morning all,

I have a listbox that I drag items out of and drop on another control. When the item is drop, I updated the listbox to disable the item by adding a '\' to the item in the Listbox. The item shows as disabled.

The problem I have is the disabled items is still "dragable", I can point my mouse at a disabled item in the list and still drag/drop it.

I can't seem to determine if an item is disabled in the listbox. Would anyone be able to enlightment me?

Thanks very much,
matt

 

[JimWWinter]

If you mean determine visually, just make sure the DisabledItemBackColor and DisabledItemForeColor are different than the SelectedItemBackColor and SelectedItemForeColor.

Regards,
Jim

 

[Mike Lewis]

And if you mean determine programatically:

IF LEFT(thisform.list1.Value, 1) = "/"
  * item is disabled
ENDIF

Mike


__________________________________
Mike Lewis (Edinburgh, Scotland)

My Visual FoxPro site: www.ml-consult.co.uk

 

[TamarGranor]

Why not remove the items once they've been dragged rather than disabling them?

Tamar

 

[vaxman9]

Jim,
I am looking for a way to programatically determine it so I can prevent the drag/drop from starting

Mike,
I just tried that and I am not getting the "/". I am testing in the OleStartDrag:

LPARAMETERS oDataObject, nEffect
ACTIVATE SCREEN 
?this.Value
?"   "+LEFT(this.Value,1)

All I get is the value and the left character of whatever value I point to start the drag operation. Doesn't matter if it is enabled or disabled.

Tamar,
The client wants to see all values in the list regardless as to whether they have been used or not.

Thanks,
Matt
VPF9 SP1

 

[NasibKalsi]

Another way to do is create another column in the list and do not show it on the screen. set the value to 1 means enables 0 menas disabled. update this column as you suffix \. so at drag time just act based on this new column value.

try it.


Nasib Kalsi

 

[vaxman9]

Nasib,

Thanks for the suggestion - that is how I ended up implementing the this behavior

Matt