My situation is illustrated/explained with this screenshot :
http://www.evolutiongraph.fr/chevereto/images/2015/02/11/Capture.jpg
In my ListBox, I want to display a text (titles), and details (articles) ; but it doesn't work : titles work perfectly, but ItemData.Details is not displayed, I don't know why :/
The variable desc is not empty, I've tested it. ItemData.Details still not appear.
Help me please :)
You need to modify the TListBoxItem's StyleLookup to one which supports showing details. For example, listboxitembottomdetail. Keep in mind this property is changed on an item-by-item basis, not necessarily the entire list. You can specify this to be the default item style (for all new items) by modifying TListBox.DefaultItemStyles.ItemStyle rather than each individual item.
Related
I'm using GeoGebra Classic 5 and have a bigger project where I've encountered the problem that I can't find any way to change the order of elements in the list of the algebra view after the elements are created. Sure I could of course just delete the affected elements and create them in the right order but I'm sure there must be a better solution to such a simple problem.
Here you see what it looks like right now, and how I would like it to look
I've tried looking through the properties panel and all the navbar buttons but there seems to be no way to change the order of the list. The only thing I've found is the "sort by" setting that changes the order but doesn't let the user decide the order other than some predefined sortings. I also haven't been able to find anything about this on google or the geogebra documentation. Hope you can help
In a Firemonkey project, I have a TListBox with numerous items. Depending on the state of any given item, I intend to show the Detail as either red or white (on a black background). Of course I need to use the styles to do this.
I right-click one of the TListBoxItem controls and choose "Edit Custom Style...". It's my understanding that it's supposed to produce a new copy of whatever the current style lookup is just for this one control. In my case, I had already set it to listboxitemrightdetail prior to trying to customize it. What I would expect is that when I make a change to the font color in this style and "Apply and Close", that one single list box item should get that change.
However, instead of that one, ALL of the items in this list box got that change. The change I made actually modified the listboxitemrightdetail rather than producing a copy of it just for that one control.
In the end, I intend to have two style lookups, for example listboxitemreddetail and listboxitemwhitedetail which I can toggle on each list item in runtime.
What am I doing wrong, and what's the appropriate way to duplicate a style lookup to have two different versions?
If I set mycoolbar.fixedorder to true,only the grip on the first band will be hidden.
Well,If you use Delphi 7 to create an VCL Forms application,then put a coolbar on it and create 3 coolbans to hold other controls,only the grip and the top coolbands can be hidden by setting mycoolbar.fixedorder:=true.
I've uploaded a picture to make things clear.
You probably got a FixedOrder property wrong. The fixed property does not allow bands to be rearranged if set to True.
Setting up property of CoolBar to True keep user from changing the bands order at runtime, but the user can still move and resize the bands. I can actually give you advice what you can do, but the actual solution for your problem, well, you will have to wait for another answer.
My advice is to use three CoolBars in a row and setting their "FixedOrder" property to True and BandBorderStyle to bsNone. That way the grip will be hidden on all of them.
About the property, it's not a bug of IDE, it is the actual preference of the property.
I am trying to display items retrieved from an XML DB using xforms:select1 control using appearance=xxforms:tree. The items appear collapsed or expanded automatically and the behaviour is not the same for all the items retrieved. I have the following questions regarding xxforms:tree view:
how to make sure this view shows sub-nodes (those expandable/collapsable using +/- icon) as collapsed or expanded always, irrespective of, for example, the no. of nodes covered by the + icon?
how to render select1 with tree appearance without making any of the items hyperlinks?
how to make sure no item is highlighted/selected by default?
...and although the docs say xxforms:menu is also a possible appearance (URL http://www.orbeon.com/orbeon/doc/reference-xforms-extensions#tree), the details are not available...
About which branches of the tree should be open — By default all the nodes leading to selected nodes are open, this so the selected values are all visible. But you can change this default behavior and specify which nodes should be open using the xxforms:open attribute. For more on this, see the section "Controlling which tree nodes are initially open" on Selection Controls. Note that this feature was added in October 2010, so it is not included in Orbeon Forms 3.8, and until Orbeon Forms 3.9 is released, you'll need to get a nightly build for this.
About using links in the tree — At this point, the nodes you can click on in the select1 appearance="xxforms:tree control are rendered as links, so users know that this is something they can click on to make a selection. I assume that you don't want them to show as links because the tree might be "read-only" in your case (for information only, not to make a selection). This isn' supported at this point. As a workaround, you could use CSS to change the pointer and appearance of links in the tree so to users they don't even notice that this those are links.
About the menu appearance — It works very much like the tree appearance. See for instance this example using the menu.
I have a tPageControl on a form, and have made a nice 'welcome page' as a new ttabsheet at design time for the user to start off with. However, if the user closes this tab, I would like the option to bring it back, as it was in originally (much like the welcome page in the Delphi IDE). This seems like a simple problem...
When the tab closes, the original sheet is freed and set nil. I tried creating the sheet again by name (e.g. tabsheet1 := ttabsheet.create) and assigning it to the pagecontrol, but none of the original components from the sheet are there anymore...
I know designing the welcome page as a separate form, creating it when I need it and slapping it into a new tabsheet would work... but I was just wondering if there was a way to do it with the design time tabsheet.
Thanks all!
Rusty
As Serg mentioned, you can just set the tabsheet's TabVisible property to false when you want to hide the page. The page control will switch to the next tab if it needs to, the tab will disappear, and the user won't be able to switch back to it until you change TabVisible back.
Re-creating the design-time tab sheet will be quite a challenge because all the information describing its layout is embedded in the DFM resource for your form. It's not like there a separate resource for each tab, so you'd need to read the resource, extract the portion relevant to the tab, and then get ReadComponent to build a new instance; nothing in Delphi is designed to make that very easy, so you should consider other options.
The easiest solution would probably be to design your welcome page on a frame; I've found frames to be a little more cooperative than full-fledged forms when it comes to re-parenting them.
Another option is to create the entire tab in code. GExperts has a tool to make that pretty easy. Select the tab sheet, and then choose DExperts's "components to code" command. That places some code on the clipboard, and you can paste it into a function in your program. The code will contain everything required to re-create the selected components in code instead of building them from the DFM resource. Then, you can use that function to not only re-create the tab after it's been closed, but to create the tab in the first place. That way, you can be assured that you're creating the same thing both times.
The reason your attempt at re-creating the tab didn't work is that the name of the variable used to hold a reference to the form doesn't really define anything. All you did was create a brand new TTabSheet. The fact that you stored a reference to it in the same variable that used to hold a reference to the old tab is irrelevant. (But please feel free to give that variable a more meaningful name; all "TabSheet1" says is that it's the first tab you put on your form, way back when you first started working on this project.)
Rob's right about what's going on, and about using frames to fix it. Bit if you want a simpler solution, you could try just making the tab invisible whan the user closes it, instead of freeing it.
Thank you all for your comments and suggestions. A couple notes :
I tried the GEExperts option (pretty nice, I havent used this one before!) : however, it did not preserve many design time settings (font size and color for example)...also there were components with glyphs that didnt get saved....
Changing the visibility of the tabsheet doesnt seem to work either; the pagecontrol doesn't seem to know what to display, even after calling .Refresh ...it shows whatever is underneath your window.
Anyhow, I might investigate the frames option, but likely will just move the components to a new form and call it when needed...
Thanks again!