How to Calculate also Decimals with in this Code in CSharp

Paul Rajs

9y1.2kLearn iOS Programming

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.

13 Replies

Know the answer? Post it — somebody with the same question will find it here.

Mangesh G9y ago
Accepted answer
Hi Paul

do something Like this

string dataentered = txt2.Text;

string[] reslts = dataentered.Split(new char[] { '+', '-','*','/' }, StringSplitOptions.RemoveEmptyEntries);

string withoutNumbers = Regex.Replace(dataentered, "[0-9]", "");

char[] Operatorarray = withoutNumbers.ToCharArray();
for (int i = 0; i <= Operatorarray.Length-1; i++)
{
if (reslts.ElementAtOrDefault(i+1) != null)
{
txt3.Text =
DoProcessing(Operatorarray[i].ToString(), Convert.ToDouble(reslts[i]),
Convert.ToDouble(reslts[i + 1])).ToString();
}

}

public double DoProcessing( string logic, double x, double y)
{
switch (logic)
{
case "+": return x + y;
break;
case "-": return x - y;
case "*": return x * y;
case "/": return x / y;

}
return 0;
}

To achecive the keyup u can add these things in pagemethods an call these things using jquery
+1
Paul Rajs9y ago
thanks on all of your Valuable reply Friends.

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 s = new List();
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
-1
Amit Gupta9y ago
8 is not the correct answer. The correct ans is 26. As you might b3 checking in calculator in a sequential way. BODMAS rule was made for tgis purpose. You can recheck your expression in excel sheet by typing =10+20-10*2/5. Hope this make you understand and do close the thread
0
Salman Beg9y ago
When you run this 10+20-10*2/5 it gives output is 26. I think here BODMAS rule is applying. So that's the reason why the result is 26. But according to BODMAS rule the result is correct.
thanks.
0
Paul Rajs9y ago
Yes but i have entered 10+20-10*2/5 it gives output is 26
but the correct answer is 8 so i cant able to got correct answer with datatable computing.

thanking you Mr.Salman
Paul.S
0
Amit Gupta9y ago
DataTable can compute all the arithmetic operations. +, -, ×, ÷,% .

Moreover, DataTable has much more features and can work with filters and also without database.

If your problem got resolved, then do close the thread by accepting the answer
0
Paul Rajs9y ago
the values coming from a single textbox entered by user Mr.Salman.

DataTable dt = new DataTable();
string result = dt.Compute(txt2.Text.Trim(),"").ToString();
txt4.Text = result;
yes Amit this code is exactly working with + and - . but i can't get exact output * and / if am run this with * and / get exact output na what should i do . there is any possibilities please help me .

thanking you
Paul.S
0
Salman Beg9y ago
Yes you can use Datatable for Calculation Without using Database but make sure that from where these values(10+10-10) coming. Database use only when if there is any insert/update/retrieve/delete operation is there. dt.Compute is independent from databse.
thanks.
0
Paul Rajs9y ago
Can i use Datatable for Calculation Without using Database. ?.
0
Salman Beg9y ago
You need to split each character once like first with + and then - etc. But which is a time consuming process. So in place of that you can use dt.Compute what Amit has posetd.
thanks.
0
Paul Rajs9y ago
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
0
Amit Gupta9y ago
I believe it might having duplicate thread. Anyway, this can be achieved by using simple datatable
var dt = new DataTable ();
var result = dt.Compute ("10+20-10*2/5");
Hope it helps
0
Salman Beg9y ago
Hi.
You can use split method and in that method you can split by +,- and store all those values in array and use it.
if there is no +,- exist then no split occur and directly the result you can display.
For more info you can follow this article,
https://www.dotnetperls.com/split
thanks.
0