How to Calculate also Decimals with in this Code in CSharp

Question

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.

Mangesh Gaherwar · 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 { 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

Amit Gupta · Answer

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

Amit Gupta · Answer

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

Amit Gupta · Answer

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

Salman · Answer

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.

Paul Rajs · Answer

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

Paul Rajs · Answer

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

Salman · Answer

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.

Paul Rajs · Answer

Can i use Datatable for Calculation Without using Database. ?.

Salman · Answer

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.

Paul Rajs · Answer

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

Salman · Answer

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.

Paul Rajs · Answer

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 { 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