Question
need a C# program that will do the following: From To Conversion Miles Kilometers 1 mile = 1.6093 kilometers Kilometers Miles 1 kilometer = 0.6214
need a C# program that will do the following:
From To Conversion
Miles Kilometers 1 mile = 1.6093 kilometers Kilometers Miles 1 kilometer = 0.6214 miles Feet Meters 1 foot = 0.3048 meters Meters Feet 1 meter = 3.2808 feet Inches Centimeters 1 inch = 2.54 centimeters Centimeters Inches 1 centimeter = 0.3937 inche
2. Set the DropDownStyle property of the combo box so the user must select an item from the list.
3. Add code to load the combo box with the first element in each row of the rectangular array, and display the first item in the combo box when the form is loaded.
4. Add code to change the labels for the text boxes, clear the calculated length, and move the focus to the entry text box when the user selects a different item from the combo box.
5. Test the application to be sure the conversions are displayed in the combo box, the first conversion is selected by default, and the labels change appropriately when a different conversion is selected.
6. Add code to calculate and display the converted length when the user clicks the Calculate button. To calculate the length, you can get the index for the selected conversion and then use that index to get the multiplier from the array. Test the application to be sure this works correctly.
7. Add code to check that the user enters a valid decimal value for the length. Then, test the application one more time to be sure the validation works correctly
here is the code so far that I got.
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms;
namespace Conversions { public partial class Form1 : Form { public Form1() { InitializeComponent(); }
string[,] conversionTable = { {"Miles to kilometers", "Miles", "Kilometers", "1.6093"}, {"Kilometers to miles", "Kilometers", "Miles", "0.6214"}, {"Feet to meters", "Feet", "Meters", "0.3048"}, {"Meters to feet", "Meters", "Feet", "3.2808"}, {"Inches to centimeters", "Inches", "Centimeters", "2.54"}, {"Centimeters to inches", "Centimeters", "Inches", "0.3937"} };
public bool IsPresent(TextBox textBox, string name) { if (textBox.Text == "") { MessageBox.Show(name + " is a required field.", "Entry Error"); textBox.Focus(); return false; } return true; }
public bool IsDecimal(TextBox textBox, string name) { try { Convert.ToDecimal(textBox.Text); return true; } catch (FormatException) { MessageBox.Show(name + " must be a decimal number.", "Entry Error"); textBox.Focus(); return false; } }
private void btnExit_Click(object sender, EventArgs e) { this.Close(); }
private void btnCalculate_Click(object sender, EventArgs e) {
} } }
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