listbox

问题 I have Python program connected to Sqlite3 database with Tkinter on the frontend. My database table (subjectlist) consists of four columns: [id (unique interger), subject (text), serial (unique interger), is_active (boolean interger)]. Here is my program: import sqlite3 from tkinter import * conn = sqlite3.connect('database.db') c = conn.cursor() c.execute('SELECT COUNT() FROM subjectlist WHERE is_active = 1') number = c.fetchone()[0] c.execute('SELECT * FROM subjectlist WHERE is_active = 1

问题 I'm trying to create a ListBox that displays formatted text. I want to be able to change formatting from code. For displaying formatted text I chose TextBlock and intend to use the TextBlock.Inlines collection for formatting. TextBlock.Inlines is not bindable so I created new class BindableTextBlock derived from TextBlock. This class has one dependency property InlineList that I'm trying to bind to InlinesColl ObservableCollection in Model. The problem is that changes in InlinesColl don't

问题 The DivisionListBox is used to select values in the SitesListbox as follows: When you select an item in the DivisionListBox it will select all the items on SitesListbox that match the same value. Once the SiteListbox values are selected I use the SiteButton to move all selected values to the empty StoreslistBox successfully. My problem happens when I manually select multiple items on either SiteListbox or StoreslistBox and press SiteButton or StoreButton to move items between Listboxes. It

问题 I am trying to get this to work in excel userforms. When selecting a value in the listbox its change event is called twice. Unable to get around it even after putting a flag in place. Not sure why the change event is called twice. After googling it seams like when the control gets focus the change event is called. Below is the code. Public eventsOFF As Boolean Public ctr As Integer Private Sub ListBox1_Change() Dim tmp As String, sel As Variant, s As Variant If eventsOFF Then Exit Sub

问题 I need help with a Python3.3 Tkinter scrollable list box that iterates through all the users installed fonts. The purpose of this function is to change the fonts in my Textfield in another part of my program.... from tkinter import * import tkinter.font def fontValue(): fontroot=Tk() fontroot.wm_title('FONTS') fonts=list(tkinter.font.families()) fonts.sort() fontbox = Listbox(fontroot,height=20) fontbox.pack(fill=BOTH, expand=YES, side=LEFT) scroll = Scrollbar(fontroot) scroll.pack(side=RIGHT

问题 I need help with a Python3.3 Tkinter scrollable list box that iterates through all the users installed fonts. The purpose of this function is to change the fonts in my Textfield in another part of my program.... from tkinter import * import tkinter.font def fontValue(): fontroot=Tk() fontroot.wm_title('FONTS') fonts=list(tkinter.font.families()) fonts.sort() fontbox = Listbox(fontroot,height=20) fontbox.pack(fill=BOTH, expand=YES, side=LEFT) scroll = Scrollbar(fontroot) scroll.pack(side=RIGHT

问题 I am creating a customized listview header that has the header text but also has a textbox that you can enter to filter the content of that column. My code currently looks like this: <UserControl.Resources> <DataTemplate x:Key="myHeaderTemplate"> <StackPanel> <TextBlock FontSize="14" Foreground="DarkBlue" Margin="20,4" Text="{Binding}" /> <TextBox Text="" Margin="4,2" /> </StackPanel> </DataTemplate> </UserControl.Resources> which is the definition for the header datatemplate containing the

问题 I am creating a customized listview header that has the header text but also has a textbox that you can enter to filter the content of that column. My code currently looks like this: <UserControl.Resources> <DataTemplate x:Key="myHeaderTemplate"> <StackPanel> <TextBlock FontSize="14" Foreground="DarkBlue" Margin="20,4" Text="{Binding}" /> <TextBox Text="" Margin="4,2" /> </StackPanel> </DataTemplate> </UserControl.Resources> which is the definition for the header datatemplate containing the

问题 Say in Tkinter you have a listbox of a certain size within a window. Then let's say you add a string to that listbox that is larger than that size. If you highlight this element and drag to the side the listbox will automatically "scroll" itself so that you can see the full element. Is there anyway to disable this short of running a thread that repeatedly attempts to set the scroll to 0? import tkinter root = tkinter.Tk() listbox = tkinter.Listbox(root) listbox.insert("end", "Minimal,

问题 How can I use the following code to delete a selection from a listbox and removing it from the list the contains it also? The selections in the listbox are dictionaries which I store in a list. .................code.............................. self.frame_verDatabase = Listbox(master, selectmode = EXTENDED) self.frame_verDatabase.bind("<<ListboxSelect>>", self.OnDouble) self.frame_verDatabase.insert(END, *Database.xoomDatabase) self.frame_verDatabase.pack() self.frame_verDatabase.config