On Apr 17, 2013, at 2:09 PM, Quincey Morris <quinceymor...@rivergatesoftware.com> wrote:
> On Apr 17, 2013, at 10:50 , Gordon Apple <g...@ed4u.com> wrote: > >> We are converting tables and outlines to view-based. So far, so good, on >> tables. But NSOutlineView has been a pain. First of all, there is no >> documentation on this, zero, zip, nada, zilch, in the NSOutlineView >> Reference. You have to rely on sample code and NSOutlineView.h. > > Yup, the documentation situation for NSOutlineView is awful. You should log bugs at bugreporter.apple.com asking for specific things you would like to see better. Please be specific; general statements like "X is terrible" don't help us know what you are wanting to know. A better thing would be to say "I don't understand how to begin editing in NSOutlineView.." or "it took me a long time to figure out XX, and it should be documented". corbin > >> Our outline view has a column/cell identifier ³LineNumber², one for >> ³CheckBox², one for ³Outline². Previously, the latter two were bound to our >> NSTreeController. Converting to views (yes, using >> outlineView:viewForTableColumn:item:), we could not even get the nib to >> load. ObjectValue always came up nil. We tried binding the tableView to >> the tree controller still nil. > > You can't "try" binding here. If you're using a data source, you don't bind > the outline view to the tree controller, and in that case you need to set > view.objectValue to the desired object before returning from > 'outlineView:viewForTableColumn:item:'. > > Otherwise, you *must* bind the outline view's "content" binding to the tree > controller, and the outline view should then maintain "objectValue" for you. > (But since I always use data sources these days, I can't swear that this is > precisely correct.) > >> Ok, after examining sample code, we >> decided that just maybe there was something magic about the column/cell >> identifier ³MainCell², so we changed our third column/cell identifier and >> replaced @²Outline² with @²MainCell² in our code. Amazing now the nib >> loads. However, still no values. > > Since you're talking about loading nibs, I assume you've got code to register > the nib, and I bet you forgot to ensure that the nib is registered with with > the identifier that matches what you're actually using. > > If I remember the details correctly, you're going to invoke > 'makeViewWithIdentifier:owner:' inside > 'outlineView:viewForTableColumn:item:'. When you're using registered nibs, > you must use the identifier that the nib is registered under, and the > identifier assigned to the built-in cell view (that you're not using) is > irrelevant. When you're using the built-in cell view, you must use its > identifier, of course. > > The column identifier is basically unrelated, unless you *choose* to > configure it to match the actual cell view identifier. The table view > documentation assumes this is desirable, but I've never found it makes > anything much easier. All it does is provide the opportunity for things to > get out of sync, as you discovered. > >> Even worse, the turn-down dingy appears >> in the first column, not the third where we want it. It does turn down the >> right number of times and depths to match our outline, but is in the wrong >> place and no values. >> >> So how do I get the outline back into the third column and get my >> objectValues to work? > > Are you sure you aren't inadvertently returning a group row view, or a > full-row view? > > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/cocoa-dev/corbind%40apple.com > > This email sent to corb...@apple.com _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
