C# foreach loop for true boolen

Question

Good Afternoon,

i have created a program that a class will check if bool is true or false but the issue i have is a simple,

if(elfbool1 == true )
{
then do something
}

this works fine but i want to check each bool at once as i want each checkbox to be checked before anything happens,

and dont really want to do multiple if statements to do this,

ideally i would like a for each loop to accomplish this,
as each one that is true will end up setting a file for download so a foreach one would work correctly

as it will que the download link its,

just im not quite sure how to get all ones by name as i have vlc, winrar, ect and if both those are selected it will setup a download link for them,

but i have like 50 plus bools and still growing so it would like to find out what values are true,

if they are true i can gen a link for them,

my bools are public static bool vlc {get; set;)
public static bool winrar {get; set;)

any help would be much appreciated

Accepted Answer

Hello,

The basic idea for checking many bool values is with the .Any extension. The following code samples were done with VS2019, C# 9, .NET 5.

Button one is against a bool array
Button two is against a property in a list of a class named Item
Button three is against CheckBox controls directly on a form
BooleanExtensions is for demo purposes only
I used three items in each demo but the number can be any number greater than 1 to work.

Code

For a real app, Item class and BooleanExtensions class would be in their own class files.

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Windows.Forms;

namespace BoolCheck
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            bool[] values1 = {true, false, true};

            Debug.WriteLine(values1.Any(booItem=> booItem is false) ? 
                "Not all true" : 
                "All true");

            values1 = new[] { true, true, true };
            
            Debug.WriteLine(values1.Any(boolItem => boolItem is false) ? 
                "Not all true" : 
                "All true");
        }

        private void button2_Click(object sender, EventArgs e)
        {
            var items = new List<Item>
            {
                new() {Id = 1, Vlc = true}, 
                new() {Id = 2, Vlc = false}, 
                new() {Id = 3, Vlc = true}
            };

            Debug.WriteLine(items.Any(item => item.Vlc is false) ? 
                "Not all true" : 
                "All true");

            var notTrueItems = items
                .Select((item, index) => new {Item = item, Index = index})
                .Where(data => data.Item.Vlc is false)
                .ToList();
            
            for (int index = 0; index < notTrueItems.Count; index++)
            {
                notTrueItems[index].Item.Vlc = true;
            }

            Debug.WriteLine(items.Any(item => item.Vlc is false) ? 
                "Not all true" : 
                "All true");
            
            
        }

        private void button3_Click(object sender, EventArgs e)
        {
            var checkBoxes = !Controls.OfType<CheckBox>().Any(cb => cb.Checked is false);
            Debug.WriteLine($"CheckBoxes all checked?: {checkBoxes.ToYesNoString()}");
        }
    }

    public class Item
    {
        public int Id { get; set; }
        public bool Vlc { get; set; }
    }
    public static class BooleanExtensions
    {
        public static string ToYesNoString(this bool value) => value ? "Yes" : "No";
    }
}

Share via

C# foreach loop for true boolen

Code

0 additional answers

Your answer