[Tkinter] Updating box with Drop Down selection

[RCC99]

Hi all,

I am fairly new to using Tkinter and ive created a drop down list but what i want to do if a user selects a destination for the text box to display calculations from weight outputs * by the destination weight.

The entry fields are what the weight the user is taking i want to display the DisplayAv (output) * the weight of the travelling destination.

def Weight():
    # Convert Crew Weight of 100KG
    Entry1 = float(entName1.get())-CrewAllowance
    Entry2 = float(entName2.get())-CrewAllowance
    Entry3 = float(entName3.get())-CrewAllowance
    Entry4 = float(entName4.get())-CrewAllowance

    # Mission Crew Weight of 150KG

    Entry5 = float(entName5.get())-MissionAllowance
    Entry6 = float(entName6.get())-MissionAllowance

    # Enters converted weight to
    # the text widget

    DisplayAv1.delete("1.0", END)
    DisplayAv1.insert(END, Entry1)
    DisplayAv2.delete("1.0", END)
    DisplayAv2.insert(END, Entry2)
    DisplayAv3.delete("1.0", END)
    DisplayAv3.insert(END, Entry3)
    DisplayAv4.delete("1.0", END)
    DisplayAv4.insert(END, Entry4)
    DisplayAv5.delete("1.0", END)
    DisplayAv5.insert(END, Entry5)
    DisplayAv6.delete("1.0", END)
    DisplayAv6.insert(END, Entry6)
    
    Drop = DropBox.get()
    Display1.delete("1.0", END)
    Display1.insert(END, DropVal)

def DropVal(DropBox):
    if Drop==options[0]:
        Display1 = "0.378"
        Display1.set

# List of options:

options=[
    "Please Select a Destination",
    "Destination1",
    "Destination2",
    "Destination3",
    "Destination4",
    "Destination5",
    "Destination6",
    "Destination7",
    "Destination8"
    ]
    
DropBox = StringVar()
DropBox.set("Please Select a Destination")

# Drop down box for MASS

Dropdown = OptionMenu(main, DropBox, *options,)
Dropdown.grid(row=8, column=5)

Hope this makes sense on what i am trying to do, thanks everyone

---

Hi All,

The box i am trying to get to update with the calculations displays the below in the text box.

* <function DropVal at 0x1030c73a0> *

Haven't been able to figure out why this is happening