1 00:00:01,580 --> 00:00:06,770 OK, in this video, I want to talk about combo boxes and cargo boxes are just dropdown boxes, right? 2 00:00:07,060 --> 00:00:09,050 You see them on web forms and things. 3 00:00:09,050 --> 00:00:10,910 You click on them, little thing drops down. 4 00:00:10,910 --> 00:00:12,200 There's a list of items. 5 00:00:12,380 --> 00:00:14,510 You pick one and then that's it. 6 00:00:14,540 --> 00:00:19,940 So with combo boxes, again, we have to import a little module from TENTER. 7 00:00:20,240 --> 00:00:22,730 For some reason, we have to explicitly import this. 8 00:00:22,730 --> 00:00:23,540 So let's do that now. 9 00:00:23,550 --> 00:00:32,060 So it's from T Kintner import Teekay and TDK is just a module that has a little nicer looking widgets, 10 00:00:32,900 --> 00:00:34,340 some of which we'll look at. 11 00:00:34,340 --> 00:00:36,020 For instance, this one, the combo box. 12 00:00:36,320 --> 00:00:41,390 OK, so with a combo box you need to designate what the things are going to be in the list that drops 13 00:00:41,390 --> 00:00:41,690 down. 14 00:00:41,690 --> 00:00:44,110 So to do that, you use a Python dictionary. 15 00:00:44,120 --> 00:00:48,980 So I'm just going to call this options, set this equal to a Python dictionary, and we can put this 16 00:00:48,980 --> 00:00:50,000 on multiple lines. 17 00:00:50,270 --> 00:00:52,310 So let's just say Monday. 18 00:00:53,660 --> 00:01:00,530 And each of these things should be separated with commas Tuesday and let's just go Wednesday. 19 00:01:03,140 --> 00:01:05,900 OK, you can put a comma for the last one, but you don't have to. 20 00:01:06,260 --> 00:01:08,910 So now we need to create our combo box. 21 00:01:08,910 --> 00:01:10,730 So let's go my underscore combo. 22 00:01:12,340 --> 00:01:13,100 Equals now. 23 00:01:13,120 --> 00:01:22,810 This is a widget, so tech that combo box and we want to put this in route and we want the value. 24 00:01:24,370 --> 00:01:26,260 To equal our options. 25 00:01:27,630 --> 00:01:31,480 And that's these right here, so that's pretty much all there is to it. 26 00:01:31,500 --> 00:01:37,500 Now we have to designate which of these we want to show up by default in the combo box. 27 00:01:37,500 --> 00:01:46,110 So let's go my underscore combo dot current set the current one and it's a function and we just pass 28 00:01:46,110 --> 00:01:49,800 in the index number of the thing we want to show up. 29 00:01:49,810 --> 00:01:52,070 So Python lists start at zero. 30 00:01:52,410 --> 00:01:54,120 So Monday is the zeroth item. 31 00:01:54,120 --> 00:01:55,410 Tuesday is the first item. 32 00:01:55,410 --> 00:01:58,500 Wednesday is the second item, which is weird because there's three items. 33 00:01:58,500 --> 00:02:01,170 But just remember, Python lists always start at zero. 34 00:02:01,170 --> 00:02:03,180 So zero is Monday. 35 00:02:03,420 --> 00:02:06,300 If we want a Tuesday to show up, we would put one here. 36 00:02:07,170 --> 00:02:09,290 So, OK, that's how we do that. 37 00:02:09,300 --> 00:02:14,880 So now all that's left is to my combo pack, this guy on the screen and let's give this guy a pad Y 38 00:02:14,880 --> 00:02:16,600 of ten just to smash it down a little bit. 39 00:02:16,620 --> 00:02:20,970 So now if we save this and I say this as combo pie, so if we run this. 40 00:02:22,330 --> 00:02:27,550 We see Monday, Tuesday, Wednesday, now, nothing happens here because we have a button yet, we'll 41 00:02:27,550 --> 00:02:28,600 do that in just a second. 42 00:02:29,030 --> 00:02:29,920 But I mentioned. 43 00:02:31,090 --> 00:02:35,650 We sent this to current zero, if we wanted to stay to show up, we put one there. 44 00:02:36,040 --> 00:02:37,660 Now if we save this and run it. 45 00:02:40,750 --> 00:02:44,800 Boom, now Tuesday shows up by default, which is kind of weird, I don't know why you would want to 46 00:02:44,800 --> 00:02:46,990 do that, but if you did, that's how you would do it. 47 00:02:47,000 --> 00:02:49,910 So, OK, so how do we now do something with this? 48 00:02:49,930 --> 00:02:55,030 Well, let's create a button called my button, and this is a button. 49 00:02:55,600 --> 00:02:59,500 And we want to put it in route and we want the text to say select. 50 00:03:00,780 --> 00:03:04,770 And what let's give this a command, a select. 51 00:03:07,800 --> 00:03:09,540 And let's pack this on the screen. 52 00:03:10,110 --> 00:03:13,140 OK, so now we need to create this select function. 53 00:03:13,140 --> 00:03:18,310 So I'm going to come up here and create select function. 54 00:03:19,420 --> 00:03:27,520 So we want to define, select, it's a function, so let's create a label, my underscore label, and 55 00:03:27,520 --> 00:03:28,330 that's a label. 56 00:03:30,600 --> 00:03:35,850 And we want to put it in root and we want the text to equal my combo. 57 00:03:38,950 --> 00:03:45,040 Don't get we want to get that right now, let's pack this on the screen and let's give this a pat. 58 00:03:45,040 --> 00:03:47,570 Why of 10, just give spacing. 59 00:03:47,590 --> 00:03:49,630 OK, so let's take this and run it. 60 00:03:53,200 --> 00:03:55,810 And did I not forget to change this back, so Monday. 61 00:03:56,470 --> 00:04:01,690 Monday, Wednesday, Wednesday, Tuesday, Tuesday. 62 00:04:01,690 --> 00:04:05,410 And again, you can do things based on that, like we've already learned in the past. 63 00:04:05,770 --> 00:04:09,100 So let's change this back to the default Monday, for instance. 64 00:04:10,840 --> 00:04:11,890 So like in our slides. 65 00:04:11,900 --> 00:04:13,390 So we could go if. 66 00:04:14,470 --> 00:04:17,410 My underscore combo get. 67 00:04:18,610 --> 00:04:21,730 Equals, you know, Monday. 68 00:04:23,970 --> 00:04:25,020 Then let's. 69 00:04:27,360 --> 00:04:30,090 Put out instead of just the thing. 70 00:04:33,140 --> 00:04:34,080 Let's go. 71 00:04:34,700 --> 00:04:37,450 You clicked on the. 72 00:04:38,800 --> 00:04:44,170 All right, we can just continue with my underscore combo dot get. 73 00:04:47,650 --> 00:04:56,890 Equals Tuesday, or you can use else statements as well, whatever, let's just copy this whole thing. 74 00:04:57,250 --> 00:04:59,020 You clicked Tuesday. 75 00:05:00,890 --> 00:05:05,390 And if I can get. 76 00:05:06,810 --> 00:05:10,200 Equals Wednesday. 77 00:05:13,200 --> 00:05:15,690 You clicked Wednesday. 78 00:05:16,870 --> 00:05:20,410 Save this runit, you click Monday. 79 00:05:21,550 --> 00:05:22,690 You click Tuesday. 80 00:05:23,740 --> 00:05:25,920 If wed, easy as can be. 81 00:05:26,490 --> 00:05:29,550 So those are dropdown boxes, combo boxes, pretty simple. 82 00:05:29,760 --> 00:05:37,620 Now Kintyre has a dropdown box widget that does not look as good as this combo box widget, its actual 83 00:05:37,620 --> 00:05:39,540 options menu you can use. 84 00:05:39,810 --> 00:05:42,360 And if you want to Google how to use that, you can. 85 00:05:42,360 --> 00:05:47,460 But you're always going to want to use this combo box because it looks better, it looks nicer, and 86 00:05:47,760 --> 00:05:50,150 I'll let you discover how bad the other one works. 87 00:05:50,160 --> 00:05:52,920 It looks if you want to, but it looks bad. 88 00:05:53,280 --> 00:05:55,630 So just use this combo box whenever you want to. 89 00:05:55,630 --> 00:05:57,170 You use a dropdown box of any kind. 90 00:05:57,420 --> 00:05:58,560 So that's all for this video. 91 00:05:58,560 --> 00:06:01,230 In the next video, we'll look at creating new windows.