Python 3: Tkinter OptionMenu Detect Change & Pass Variables

Question

So I am working on my first "large" python project (second GUI), and it is a simple SQLite database manager. As of now, this is what it looks like...

At the top, as you can see, there is a change table button and a drop-down to select what table you wish to switch to.

What I want to do is to remove the button, replace it with an ordenary label(This is easy to do), and then have the OptionMenu change the table a different one is selected automatically.

This is what I have for the changing.

def change(self, root, c, tableToChangeTo, table, list_columns):
    table = tableToChangeTo.get()
    cursor = c.execute('select Rowid, * from ' + table)
    list_columns = [description[0] for description in cursor.description]

    self.clear()
    self.table(root, c, table, list_columns)
    self.addGui(root, c, table, list_columns)
    self.editGui(root, c, table, list_columns)
    self.delGui(root, c, table, list_columns)
    self.changeGui(root, c, table, list_columns)


def changeGui(self, root, c, table, list_columns):
    gridRow = self.rowTotal
    self.changeButton = Button(root, text="Change Table", command= lambda: self.change(root, c, var, table, list_columns))
    self.changeButton.grid(row = 0 , column = 0)

    var = StringVar(root)
    var.set(table)

    options = {""}
    global tableList
    ta = tableList

    for t in ta:
        options.add(t)

    self.changeOption = OptionMenu(root, var, *options)
    self.changeOption.grid(row = 0, column = 1)

So to make it short and sweet, I want to make it where when you select another table, it will automatically run the change method. The big problem is I can not seem to figure out how to make a method an event while at the same time being able to pass variables to it.

So thank you for any help, and if you need anything else, let me know!

Muamer Bektić · Accepted Answer · 2016-09-29 03:31:17Z

1

For anyone else having the same problem as me, I was able to get mine working by using this line of code.

self.changeOption = OptionMenu(root, var, *options, command= lambda event: self.change(event,root, c, var, table, list_columns))

answered Sep 29, 2016 at 3:31

Muamer Bektić

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