0 1 00:00:05,280 --> 00:00:06,690 In this lecture we are going to learn 1 2 00:00:06,690 --> 00:00:09,800 how we can create ComboBoxes for our applications. 2 3 00:00:09,800 --> 00:00:12,990 And like before do we need to create a variable 3 4 00:00:12,990 --> 00:00:16,887 here for our ComboBox and after that, we can create our ComboBox. 4 5 00:00:16,887 --> 00:00:17,860 To do that what I'll say. 5 6 00:00:17,860 --> 00:00:21,030 I will say months, this is my variable name 6 7 00:00:21,030 --> 00:00:25,630 and after that here I' need to create StringVar variables, okay? 7 8 00:00:25,630 --> 00:00:28,080 And my function is StringVar. 8 9 00:00:28,080 --> 00:00:29,590 And now, how we can create 9 10 00:00:29,590 --> 00:00:31,082 our ComboBox to do that I will say 10 11 00:00:31,082 --> 00:00:36,082 ComboBox=ttk.Combobox. 11 12 00:00:39,890 --> 00:00:43,150 And here our first parameter will be root. 12 13 00:00:43,150 --> 00:00:45,660 And the second one is a textvariable 13 14 00:00:49,030 --> 00:00:53,550 is equal to our variable months, okay? 14 15 00:00:53,550 --> 00:00:56,460 And after that here, months 15 16 00:00:59,170 --> 00:01:01,050 months okay? 16 17 00:01:01,050 --> 00:01:05,580 Now I can use grid geometry manager for my ComboBox 17 18 00:01:05,580 --> 00:01:08,920 to do that I will say here, for the row as you remember, 18 19 00:01:08,920 --> 00:01:11,250 this is our last row is ? 19 20 00:01:11,250 --> 00:01:12,730 It was five, okay? 20 21 00:01:12,730 --> 00:01:17,730 And, for ComboBox, I will say row is six and column is 0. 21 22 00:01:20,530 --> 00:01:25,070 Okay, and now, if I run my application I can see my ComboBox 22 23 00:01:26,480 --> 00:01:28,520 as you you see now, our ComboBox is here, 23 24 00:01:28,520 --> 00:01:30,240 but it's totally empty. 24 25 00:01:30,240 --> 00:01:32,390 So what we need to do, is we need to create variables 25 26 00:01:32,390 --> 00:01:34,480 for our ComboBox. 26 27 00:01:34,480 --> 00:01:37,580 To do that, what I need to do, I can come here, and say 27 28 00:01:38,800 --> 00:01:41,220 sorry, I said variables, we need to create values 28 29 00:01:41,220 --> 00:01:42,140 for our ComboBox. 29 30 00:01:42,140 --> 00:01:44,670 Here I need to use values, okay? 30 31 00:01:44,670 --> 00:01:47,067 This is my function name and after values here, 31 32 00:01:47,067 --> 00:01:49,810 I need to create a tuple list, okay? 32 33 00:01:49,810 --> 00:01:54,030 For my tuple list, let's say, January, the first one. 33 34 00:01:54,030 --> 00:01:58,263 Second one is, February, 34 35 00:01:59,970 --> 00:02:04,500 after that, March, and lets say 35 36 00:02:04,500 --> 00:02:07,310 last one is April, okay? 36 37 00:02:07,310 --> 00:02:12,110 Now, if I run my application, I can see also my values. 37 38 00:02:12,110 --> 00:02:15,030 Here, as you see our wealth is here. 38 39 00:02:15,030 --> 00:02:17,730 But here there's a problem, for example if I click for 39 40 00:02:17,730 --> 00:02:22,330 March, and now you can see we can edit our ComboBox values. 40 41 00:02:22,330 --> 00:02:26,240 And how we can solve this problem, to do that here, 41 42 00:02:26,240 --> 00:02:31,240 I will come here, and this here, click, press enter here. 42 43 00:02:32,970 --> 00:02:37,970 I will say state is equal to read only, okay. 43 44 00:02:40,350 --> 00:02:45,350 If I use this function, now I can't edit my ComboBox values. 44 45 00:02:46,130 --> 00:02:49,170 For example, for March we see we cannot edit it. 45 46 00:02:49,170 --> 00:02:53,820 For April, also, we can't edit our ComboBox values okay? 46 47 00:02:53,820 --> 00:02:56,680 And this is the first way how we can add values 47 48 00:02:56,680 --> 00:02:57,940 for our ComboBox. 48 49 00:02:57,940 --> 00:03:00,370 The other one, also, I want to show you something else now. 49 50 00:03:00,370 --> 00:03:05,370 Now let's delete this guy and here, for example if you, 50 51 00:03:06,440 --> 00:03:10,560 you can also use for loop to create your variables, okay? 51 52 00:03:10,560 --> 00:03:13,400 So it's always your values for ComboBox. 52 53 00:03:13,400 --> 00:03:14,480 How we can do that? 53 54 00:03:14,480 --> 00:03:17,880 That I will create here a list, empty list okay? 54 55 00:03:17,880 --> 00:03:20,580 Numbers is equal to this is 55 56 00:03:22,060 --> 00:03:25,420 our empty list is here with it's numbers okay? 56 57 00:03:25,420 --> 00:03:28,700 And after I will say for i in range 57 58 00:03:28,700 --> 00:03:33,700 I will use range function from zero to, for example, 10. 58 59 00:03:33,743 --> 00:03:36,030 Okay and after that, what I need to do, 59 60 00:03:36,030 --> 00:03:40,150 I need to use a append method to add these guys to numbers 60 61 00:03:40,150 --> 00:03:43,550 to my numbers list, right? 61 62 00:03:43,550 --> 00:03:48,550 And here I say numbers.append 'i', okay? 62 63 00:03:49,870 --> 00:03:54,870 And here, for the values I will say numbers okay? 63 64 00:03:56,260 --> 00:04:01,260 And if I run my application now, and you see? 64 65 00:04:01,360 --> 00:04:04,430 From zero to nine, we have numbers are here. 65 66 00:04:04,430 --> 00:04:06,840 We can also use for loop if you want to create 66 67 00:04:08,183 --> 00:04:11,230 values for your ComboBox, okay? 67 68 00:04:11,230 --> 00:04:16,230 And also, I show you how to get the value of ComboBox. 68 69 00:04:16,310 --> 00:04:18,630 It's also important, it's also very, very simple, 69 70 00:04:18,630 --> 00:04:21,510 like before we need to use get Method, okay? 70 71 00:04:21,510 --> 00:04:26,510 And here, I will say print my ComboBox 71 72 00:04:26,849 --> 00:04:29,850 variable name was months, right? 72 73 00:04:29,850 --> 00:04:33,340 I will say months.get, that's all. 73 74 00:04:33,340 --> 00:04:38,340 If I run my application now, you see here let's fill it. 74 75 00:04:39,048 --> 00:04:41,310 Let's say again David. 75 76 00:04:41,310 --> 00:04:44,100 For password, one two three four. 76 77 00:04:44,100 --> 00:04:48,860 And male, and for that one,let's say seven, okay. 77 78 00:04:48,860 --> 00:04:53,260 If I hit Enter button, and let's check here our consol. 78 79 00:04:53,260 --> 00:04:58,150 See, your name, password not selected, and male, and also 79 80 00:04:58,150 --> 00:05:00,360 our ComboBox value is seven. 80 81 00:05:00,360 --> 00:05:04,440 This is how we can use ComboBoxes for our applications. 81 82 00:05:04,440 --> 00:05:06,440 For now that's all, see you in the next.