I am trying to create a Treeview with a variable number of columns that allows for horizontal scrolling when the number of columns makes the TreeView wider than the main window. Right now I have both a vertical and horizontal scrollbar implemented. The horizontal scrollbar is never enabled because the TreeView and Frame containing it both expand to fit all of the columns, with the excess running off the main window. However, the height of the TreeView doesn't change, regardless of the number of rows. If someone could help me mimic that behavior for the horizontal, it would be greatly appreciated.
TreeView too Big, can't see Vertical Scrollbar or right end of horizontal scrollbar
TreeView fits, both scrollbars can be seen
I've tried to include the relevant code below:
class Application(Frame):
def __init__(self, master=None):
Frame.__init__(self, master)
self.dora = DoraExplorer()
self.currentDict = {}
self.lbox_list = []
self.prevIndex =''
self.pack()
self.create_widgets()
def populateTreeView(self,tabDict):
header = tabDict['header']
data = tabDict['data']
self.tree["columns"] = header
self.tree['show'] = 'headings'
self.tree.delete(*self.tree.get_children())
for head in header:
self.tree.column(head, width=10, anchor='c')
self.tree.heading(head, text=head)
#print(data)
for j in range(len(data)):
row = list(data[j])
self.tree.insert("",'end',text=str(j),values=row)
def queryAction(self):
#self.frame.delete('1.0',END)
d = self.dbVar.get()
t = self.tableVar
cf = self.query.get()
queryResults = self.dora.runQueries(cf,d,t)
queryText = queryResults['text']
label = queryText['label']
title = queryText['title']
self.populateTreeView(queryResults['table'])
def create_widgets(self):
self.query = StringVar()
self.createDBMenu()
self.search_var = StringVar()
self.search_var.trace("w", self.update_list)
self.scrollbar = Scrollbar(self, orient=VERTICAL)
self.lbox = Listbox(self, width=45, height=15,yscrollcommand=self.scrollbar.set)
self.lbox.bind('<<ListboxSelect>>',self.onselect)
self.lbox.grid(row=4, column=1,rowspan=9, padx=10, pady=3)
self.entry = Entry(self, textvariable=self.search_var, width=40)
self.entry.grid(row=3, column=1, padx=10, pady=3)
self.cRadio = Radiobutton(self,text='Count',variable=self.query,value ='countTop',indicatoron=0)
self.cRadio.grid(row=13,column=1)
self.fRadio = Radiobutton(self,text='Foreign',variable=self.query,value ='foreignKeys',indicatoron=0)
self.fRadio.grid(row=14,column=1)
self.queryButton = Button(self, text="Query", command=self.queryAction)
self.queryButton.grid(row=9,column=2,padx=3,pady=.05)
self.treeFrame = Frame(self,width = 300, height = 400)
self.treeFrame.grid(row=4, column=3,columnspan=3,rowspan=9, padx=10, pady=3)
self.treeFrame.columnconfigure(3,weight=1)
self.tree = ttk.Treeview(self.treeFrame, selectmode='browse')
self.tree.grid(row=1, column=0, sticky=NSEW,in_=self.treeFrame, columnspan=3, rowspan=9)
self.tree.grid_propagate(False)
self.scbHDirSel =Scrollbar(self.treeFrame, orient=HORIZONTAL, command=self.tree.xview)
self.scbVDirSel =Scrollbar(self.treeFrame, orient=VERTICAL, command=self.tree.yview)
self.scbVDirSel.grid(row=1, column=50, rowspan=50, sticky=NS, in_=self.treeFrame)
self.scbHDirSel.grid(row=52, column=0, rowspan=2,columnspan=3, sticky=EW,in_=self.treeFrame)
self.tree.configure(yscrollcommand=self.scbVDirSel.set, xscrollcommand=self.scbHDirSel.set)
root = Tk()
root.title("Tk dropdown example")
app= Application(master=root)
app.mainloop()
