Re: [Lazarus] TComboBox.DropDownCount has no effect.
Hi, DropDownCount works well in Qt but has no effect in GTk2 (and probably in Carbon too). You can also see it in OI, tab Restricted. V. __ Od: Donald Ziesig don...@ziesig.org Komu: Lazarus mailing list lazarus@lists.lazarus.freepascal.org Datum: 04.04.2015 20:06 Předmět: [Lazarus] TComboBox.DropDownCount has no effect. Hi All! I have several apps that use combo boxes for (e.g.) Minutes. For Minutes, the items range from 0 to 59. The Object Inspector shows that the DropDownCount is 8, but no matter what I put in there, I get the entirety of the items. For Minutes, the selection box spans the display from the top to the bottom, with the top part being blank and the bottom (from the position of the control itself) with 0, 1, ... until it hits the bottom of the screen. To test this, create an application, put a TComboBox on the form, populate the Items with a set of items having more than 8 entries. Run the app and look at the number of items in the drop-down list. Change the DropDownCount to something like 3 and try again. It always shows every item in the list no matter what is put in the Object Inspector. Additionally, in the FormCreate event, try setting ComboBox1.DropDownCount to something less than the number of Items. The new value is totally ignored. I am using Lazarus 1.4RC2 with no modifications on Linux Mint 17. Am I doing something wrong? Thanks, Don Ziesig -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] TComboBox.DropDownCount has no effect.
On 04/04/2015 19:04, Donald Ziesig wrote: Hi All! I have several apps that use combo boxes for (e.g.) Minutes. For Minutes, the items range from 0 to 59. The Object Inspector shows that the DropDownCount is 8, but no matter what I put in there, I get the entirety of the items. This seems to be a Linux bug, since DropDownCount restricts the entries listed correctly on Windows (win32). Howard --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] TComboBox.DropDownCount has no effect.
On 5 April 2015 at 06:04, Donald Ziesig don...@ziesig.org wrote: Additionally, in the FormCreate event, try setting ComboBox1.DropDownCount to something less than the number of Items. The new value is totally ignored. I am using Lazarus 1.4RC2 with no modifications on Linux Mint 17. You haven't stated widgetset, but I'm guessing GTK2 If so, good news: you're doing nothing wrong. Bad news: http://wiki.freepascal.org/Lazarus_known_issues_(things_that_will_never_be_fixed) My memory (not what it was...) also says that in the Object Inspector there is a note to this affect when you click on DropDownCount. Oh, I've just double checked. UI has changed since I last looked, but select select TComboBox, then switch to the Restricted tab of the Object Inspector. You'll see various OS icons on the different properties. They are the widgetsets that property doesn't work on. Mike -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] TComboBox.DropDownCount has no effect.
On 2015-04-04 14:40, Howard Page-Clark wrote: On 04/04/2015 19:04, Donald Ziesig wrote: Hi All! I have several apps that use combo boxes for (e.g.) Minutes. For Minutes, the items range from 0 to 59. The Object Inspector shows that the DropDownCount is 8, but no matter what I put in there, I get the entirety of the items. This seems to be a Linux bug, since DropDownCount restricts the entries listed correctly on Windows (win32). No, it's not bug but gtk behaviour. Gtk have popup (like popupmenu) for combolist by default. That can be changed by setting in gtk2rc file (don't know now what exactly need to be changed). zeljko -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] TComboBox.DropDownCount has no effect.
Hi All! I have several apps that use combo boxes for (e.g.) Minutes. For Minutes, the items range from 0 to 59. The Object Inspector shows that the DropDownCount is 8, but no matter what I put in there, I get the entirety of the items. For Minutes, the selection box spans the display from the top to the bottom, with the top part being blank and the bottom (from the position of the control itself) with 0, 1, ... until it hits the bottom of the screen. To test this, create an application, put a TComboBox on the form, populate the Items with a set of items having more than 8 entries. Run the app and look at the number of items in the drop-down list. Change the DropDownCount to something like 3 and try again. It always shows every item in the list no matter what is put in the Object Inspector. Additionally, in the FormCreate event, try setting ComboBox1.DropDownCount to something less than the number of Items. The new value is totally ignored. I am using Lazarus 1.4RC2 with no modifications on Linux Mint 17. Am I doing something wrong? Thanks, Don Ziesig -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
