I've hit an obstacle. I just want to learn how I can assign SelectedIndex items with the declared costs? I feel like I am missing something obvious.
I have declared the costs of the taco types but I am not sure how I can assign them to the SelectedIndex items for the `ddlTacoType` in Visual Basic. Is it a good idea to use a switch statement? Ideally, the output should display the cost as 8.99 when the user
selects "Chipotle Chicken."
Any help would be much appreciated.
Cheers,
Richard
[Screenshot of Output][1]
```
' Project: Street Tacos Order Form
' Author: Richard Lew
' Date: November 3, 2019
' Purpose: The web application allows a customer to fill out a street taco order form.
Public Class About
Inherits Page
Private _decChicken As Decimal = 8.99
Private _decPork As Decimal = 9.99
Private _strFish As Decimal = 12.99
Private _strBeef As Decimal = 13.99
Private _strExtra As Decimal = 0.99
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
End Sub
Protected Sub btnSubmit_Click(sender As Object, e As EventArgs) Handles btnSubmit.Click
' The btnSubmit click event will calculate the cost of the street tacos
' based on the type of tacos selected.
' Declare and initialize variables
Dim decTacoCost As Decimal
Dim decFinalCost As Decimal
Dim decTotalCost As Decimal
Dim decChickenCost As Decimal = 8.99D
Dim decPorkCost As Decimal = 9.99D
Dim decFishCost As Decimal = 12.99D
Dim decBeefCost As Decimal = 13.99D
Dim decExtraCost As Decimal = 0.99
Dim strName As String
Dim strAddress As String
Dim strPhone As String
Dim decOrderCost As Decimal = 0D
Dim strMessage As String
' Trim additional spaces that are entered by the user
strName = txtName.Text.Trim
strAddress = txtAddress.Text.Trim
strPhone = txtPhone.Text.Trim
' Clear the Order Message
lblOrder.Text = ""
' Ensure a Taco Selection is Selected
If ddlTacoType.SelectedIndex < 0 Then
lblTacoTypeError.Visible = True
Else
lblTacoTypeError.Visible = False
End If
' Ensure a Topping is Selected
If Not (chkRedChili.Checked Or chkGreenChili.Checked Or chkBeans.Checked Or chkCream.Checked Or chkLime.Checked Or chkNoToppings.Checked) Then
lblToppingsError.Visible = True
Else
lblToppingsError.Visible = False
End If
' Calculate the cost of the Taco(s) selected by the user
Select Case decTotalCost
Case 0
decTacoCost = decChickenCost
Case 1
decTacoCost = decPorkCost
Case 2
decTacoCost = decFishCost
Case 3
decTacoCost = decBeefCost
Case 4
decTacoCost = decExtraCost
End Select
End Sub
End Class
```
When the user selects a taco type in the `ddlTacoType` drop-down list, the program should associate the item with its cost and calculate the total cost of the selected item at the end of the program.
Please remember to mark the replies as answers if they help and unmarked them if they provide no help, this will help others who are looking for solutions to the same or similar problem. Contact via my Twitter (Karen Payne) or Facebook (Karen Payne) via
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Visual Basic - How do I assign values to SelectedIndex items in a drop-down list?
