Untitled

def add_entry(self, event=None):
    # Update timestamp entry with current date and time
    self.update_timestamp()

    # Get data from entry widgets
    data = {label: entry.get() for label, entry in self.entries.items()}
    
    # Add current date/time to data
    data['Timestamp'] = self.timestamp_entry.get()

    # Check if an item is selected in the treeview
    selected = self.tree.selection()
    if selected:
        self.tree.item(selected[0], values=list(data.values()))
    else:
        self.tree.insert('', tk.END, values=list(data.values()))