3-state check boxes in listview/treeview

[blindwig]

Is it possible to have 3-state check boxes in a treeview or a listview control?

[buzz44]

Do you mean checked, unchecked and disabled?

[john925]

I'm also interested in this. I'd like something similar to backup software where a checked item means that all sub-items are checked, an unchecked item means that all sub-items are unchecked, and a greyed-out-but-checked item means that some but not all sub-items are checked.

john

[blindwig]

I'm also interested in this.  I'd like something similar to backup software where a checked item means that all sub-items are checked, an unchecked item means that all sub-items are unchecked, and a greyed-out-but-checked item means that some but not all sub-items are checked.

john

<{POST_SNAPBACK}>

Yes, that's what I mean. I have a program that lists the relationship between item A and item B. If A affects B posatively, th check is set. If negatively, the check is cleared. If A has no effect on B, then the check is grey. When I had a known number of items, I did this with regular check boxes, using 3-state checks. But now that I have an runtime-determined number of options, I need a treeview or listview to easily maintain my check boxes. But I can't get the check boxes to go to a 3-state mode.

[buzz44]

Maybe ask gafrost if this can be done.

[GaryFrost]

Might have better luck asking Holger.

[Holger]

short answer: No.

I will think about an extension maybe in 2 weeks cause from this weekend on I'm on the road you know