Category: ASP.NET

08 Dec 2016 16:02

Joined:	13/08/2015
Level:	Silver
Points:	102

Points:	5

How to Calculate Arithmetic operators in a single textbox in CSharp

hi Developers

How enter Multiple values in a single Textbox and how to Split it and How to Calculate it on both Running time and C#.

i have a Textbox named txtDetails i should enter Many values or More than one value .
i want to Split it by + or - or * and perform the calculation.
if i entered values like this 10+20-10*2/5 the result will be =8.(like a simple calculator)
i can give Decimals too.
else
if i entered values like this 20 the result will be =20. thats all

this is my requirement still i have been trying with google. if anyone of know how to do this please guide me to i am done this task quickly.

thanking you
Paul.S
Prayer throw, Impossible becomes Possible.

#768506

08 Dec 2016 17:31

Joined:	13/08/2015
Level:	Silver
Points:	102

Points:	1

i have done Splitting only if there is Arithmatic symbols.
but i can able to only Addition(+) ,ex=10+10-10=30 but my expected output is 10.
so how can i do calculations depending upon Arithmetic operator which is i am splitting.
i am confused with this following code . if possible with my code na please suggest me

protected void Button1_Click(object sender, EventArgs e)
{
string[] parts = txt2.Text.Split('+', '-', '*', '/');
decimal intSum = 0;
foreach (string item in parts)
{
intSum = intSum + Convert.ToDecimal(item);
}
txt4.Text = intSum.ToString();
}

thanking You
Paul.S

#768509

09 Dec 2016 12:21

Joined:	13/08/2015
Level:	Silver
Points:	102

Points:	1

thanks to all

Finally i got exact output with following Code

protected void Button1_Click(object sender, EventArgs e)
{
string[] decimalNumbers = txt2.Text.Split('+', '-', '*', '/');
string[] operators = txt2.Text.Split('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '.');
List<string> s = new List<string>();
foreach (var item in operators)
{
if (!string.IsNullOrEmpty(item))
{
s.Add(item);
}
}
decimal intSum = 0;
for (int i = 0; i < decimalNumbers.Length; i++)
{
if (i == 0)
{
intSum = Convert.ToDecimal(decimalNumbers[i]);
}
if (i > 0)
{
string oprator = s[i - 1];
switch (oprator)
{
case "+":
intSum = intSum + Convert.ToDecimal(decimalNumbers[i]);
break;
case "-":
intSum = intSum - Convert.ToDecimal(decimalNumbers[i]);
break;
case "*":
intSum = intSum * Convert.ToDecimal(decimalNumbers[i]);
break;
case "/":
intSum = intSum / Convert.ToDecimal(decimalNumbers[i]);
break;
}
}
}
string total = Convert.ToString(intSum);
decimal c = Convert.ToDecimal(total);
total = c.ToString("0.00");
txt4.Text = total;
}

Thanking You
Paul.S

#768511

09 Dec 2016 18:57

Joined:	18/12/2008
Level:	Gold
Points:	2921

Points:	3

Hi,

Good to hear that you got the solution. But this was not a optimize solution.
For every case you are adding a new Case to switch control which makes your application more dependency.

Suppose in future you are getting a new operator like Modulo(%). So that time you again need to modify this function and change all the coding and logics.

So try to use Delegate for this functionality to remove the dependency in your application.

Thanks,
Mani

#768513

10 Dec 2016 06:18

Joined:	30/04/2012
Level:	Gold
Points:	7233

Points:	4

There are various ways to Calculate Arithmetic operators in a single textbox in CSharp. Here is one example for you

 {
    public partial class ArthOperations : Form
    {
        public ArthOperations()
        {
            InitializeComponent();
            textBox3.Enabled = false;
        }
        private void add(object sender, EventArgs e)
        {
            float first;
            float second;
            float output;       
           first = Convert.ToInt32(textBox1.Text);    
           second = Convert.ToInt32(textBox2.Text);
           output = first + second;
           textBox3.Text=(output.ToString());
        }
 
          private void sub(object sender, EventArgs e)
       {
            float first;
            float second;
            float output;
            first = Convert.ToInt32(textBox1.Text);
            second = Convert.ToInt32(textBox2.Text);
            output = first - second;
            textBox3.Text = (output.ToString());
       }
        private void clear(object sender, EventArgs e)
        {
            textBox1.Text = "";
            textBox2.Text = "";
            textBox3.Text = ""; 
        }
    }
}

How to Calculate Arithmetic operators in a single textbox in CSharp

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