How to convert string list with binary number to decimal number in c#

Question

1.00/5 (2 votes)

See more:

I used this
1--------
temp = Convert.ToString(i, 10);

2-----
decimal.TryParse(i, out n);

result are zero

code :

C#

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 GenaticAlgo
{
    public partial class Form1 : Form
    {

        public Form1()
        {
            InitializeComponent();
        }

        int counter,decimal_val = 0;
       // string i;
        List<string> generatedNum = new List<string>();
        List<string> EvalValue = new List<string>();

        int GetSL(int final, int start, int pre)
        {
            int size, length;
            length = final - start;
            size = length * pre;
            while (size > 1)
            {
                size = size / 2;
                counter++;
            }
            return counter;
        }

        string temp;
        
        List<string> Generate(int NumOfPopSize, int LenChromosom)
        {
            Random ran = new Random();
            List<string> listOfRandom = new List<string>();
            for (int i = 0; i < NumOfPopSize; i++)
            {
                for (int j = 0; j < LenChromosom; j++)
                {
                    temp += ran.Next(0, 2);
                }
                listOfRandom.Add(temp);
                temp = " ";
            }
            return listOfRandom;
        }

        List<string> Eval(List<string> ListBinary)
        {
            List<int> ListInt = new List<int>();
          List<string>ListDec=new List<string>();
        //  string temp = "";
          decimal n ;

          foreach (string i in ListBinary)
          {
              ListInt=Convert.ToInt64(i)

          }
          /* for (decimal i = 0; i < ListBinary.Count; i++)
       {
           n =Convert.ToDecimal(i, 10);
           ListDec.Add(n.ToString());
       }*/

          /*   // return 0
             foreach (string i in ListBinary)
             {
                 decimal.TryParse(i, out n);
               
                 ListDec.Add(n.ToString());
                
             } */
          /* for (int i = 0; i <ListBinary.Count; i++)
          {
            //  temp = Convert.ToString(i, 10);
            // temp = Convert.ToInt64(i, 10);
            
                
              ListDec.Add(temp);
          }*/

          //foreach (i in ListBinary)
          //{
          //   temp = Convert.ToString(i, 10);
          //    ListDec.Add(temp);
          //}

          // temp = "";
          /*   int  base_val = 1, rem;
           foreach (string i in ListBinary)
           {
               temp = i;
               int num = Convert.ToInt32(temp);
               while (num > 0)
               {
                   rem = num % 10;
                   decimal_val = decimal_val + rem * base_val;
                   num = num / 10;
                   base_val = base_val * 2;
               }
               ListDec.Add((decimal_val).ToString());
           }*/

              return ListDec;

        }
        private void btnShow_Click(object sender, EventArgs e)
        {
           

            int Start = int.Parse(textbStart.Text);
            int Final = int.Parse(textbFinal.Text);
            int precesion = int.Parse(textbPrecision.Text);
            int PopSize = int.Parse(textbPopulationSize.Text);
            int numOfGenerate = GetSL(Final, Start,precesion);

            generatedNum = Generate(numOfGenerate, PopSize);
            listBoxRandom.DataSource = generatedNum;
           
        }

        private void btnEvaluation_Click(object sender, EventArgs e)
        {
            EvalValue = Eval(generatedNum);
            listBoxFitness.DataSource = EvalValue;
        }
    }
}

[Edit: MTHeffron -- Added pre tags and fixed formatting]

Posted 14-Dec-15 6:31am

BasmaSH

Updated 14-Dec-15 8:54am

Matt T Heffron

v5

Add a Solution

Comments

Matt T Heffron 14-Dec-15 12:51pm

You haven't given us all of the information to help you.
What is the data type for the ListBinary.
It appears to be a List<string>.

BasmaSH 14-Dec-15 12:56pm

[Deleted here and moved to original question]

Matt T Heffron 14-Dec-15 13:10pm

Please! take this code and move it to the bottom of your original question using the "Improve question" button. Be sure to use the Code button in the question editor so that it will be correctly formatted.
(Maybe add a line like:
===============Additional==================
Between the original and added parts.)
Then delete this comment.

Richard MacCutchan 14-Dec-15 12:54pm

What is the type, and what are the values in ListBinary?

BasmaSH 14-Dec-15 13:57pm

The type of ListBinary is string ,it's values are binary number generated random by function Generate .

Richard MacCutchan 14-Dec-15 14:04pm

So why are you using a decimal base to convert them to numbers? I find your code somewhat confusing.

BillWoodruff 14-Dec-15 13:23pm

We can't read your mind: your code does not show the Type of ListBinary, or the format of the data in ListBinary

BasmaSH 14-Dec-15 14:00pm

The type of ListBinary is string ,it's values are binary number generated random by function Generate .

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Rajdeep Debnath · Accepted Answer · 2015-12-14T08:07:00

Please try the below....this will work...

C#

static void Main(string[] args)
        {
            List<string> listBinary = new List<string>();
            listBinary.Add("101");
            listBinary.Add("111");
            listBinary.Add("110");
            listBinary.Add("1111");
            List<string> listDecimal = new List<string>();

            foreach (var str in listBinary)
            {
                listDecimal.Add(ConvertBinaryToDecimal(str));
            }
            foreach (var str in listDecimal)
            {
                Console.WriteLine(str);
            }

        }

        private static string ConvertBinaryToDecimal(string a)
        {
            double str = 0;
            char[] arr = a.ToCharArray();
            int i = arr.Length - 1;
            foreach (char c in arr)
            {
                str = str + Math.Pow(2, i)*Convert.ToDouble(c.ToString());
                i--;
            }
            return str.ToString();
        }