Regarding windows Application

Question

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How to Round off A decimal number..?
suppose I have a number like 25.75,and I have to round it into 26.00.so how to solve this through code i donot understand.so please help me out..its urgent.I have to solve in windows application.

Posted 6-Sep-12 19:27pm

Shivani Dash

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4 solutions

Solution 1

Well, you can use Round in the Math library:
http://msdn.microsoft.com/en-us/library/system.math.round%28v=vs.110%29.aspx[^]
or Truncate:
http://msdn.microsoft.com/en-us/library/7d101hyf.aspx[^]

Or floor or ceileing, depending on your requirements:
http://msdn.microsoft.com/en-us/library/system.math%28v=vs.71%29.aspx[^]

and to show the number in any format:
http://msdn.microsoft.com/en-us/library/dwhawy9k.aspx[^]

Posted 6-Sep-12 19:34pm

Kenneth Haugland

Updated 6-Sep-12 19:36pm

v2

Solution 3

Try this

C#

Console.WriteLine("Math.Ceiling(25.75) = {0}", Math.Ceiling(25.75));
Console.WriteLine("Math.Ceiling(25.45) = {0}", Math.Ceiling(25.45));
Console.WriteLine("Math.Floor(25.75) = {0}", Math.Floor(25.75));
Console.WriteLine("Math.Floor(25.45) = {0}", Math.Floor(25.45));
Console.WriteLine("Math.Round(25.75) = {0}", Math.Round(25.75));
Console.WriteLine("Math.Round(25.45) = {0}", Math.Round(25.45));

Posted 6-Sep-12 20:37pm

Member 7967542

Comments

Shivani Dash 7-Sep-12 2:41am

sorry bt didnt get u....if u gv me ur id i'll better explain i think.

Solution 4

use these:

Math.Ceiling(25.75); -> 26 it results in next biggest value
Math.Floor(25.45); -> 25 it results in next biggest value
Math.Round(25.75); -> 25 or 26 based upon the value after the (.) value

Posted 7-Sep-12 5:36am

Lenin Mathi

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Aarti Meswania · Accepted Answer · 2012-09-06T19:37:00

Solution 2

C#

decimal d= 25.75;
d = Math.Round(d);// so, d=26
string a = d.ToString("0.00");//to show it in textbox in 0.00 format

Happy Coding!
:)

Posted 6-Sep-12 19:37pm

Aarti Meswania

v2

Comments

ridoy 7-Sep-12 1:44am

right..+5

Aarti Meswania 7-Sep-12 1:50am

thank you! :)

Shivani Dash 7-Sep-12 2:00am

Thank u AArti.....Thanks a lot.it works.i also had donbe this bt didnt knw the right way to use math.round functn.so thanks 4 help.... :D

Hv also another questn related 2 this,if u can plz help me.

Aarti Meswania 7-Sep-12 2:02am

welcome :)
I will try to help you. what is that Question?

Shivani Dash 7-Sep-12 2:02am

suppose hv a datagridview.and hving two column of price.after rounding the rate i wnt to add bth of them and have to show in a textbox.hw to do?

Aarti Meswania 7-Sep-12 2:04am

mean want sum of all rate & price in textbox?

Shivani Dash 7-Sep-12 2:04am

Have alrdy done this....hv a look..

if (e.ColumnIndex == 8)
{
for (int i = 0; i < this.dgvTnasctn.RowCount; i++)
{
Decimal dec = 0;
Decimal.TryParse(this.dgvTnasctn[8, i].FormattedValue.ToString(), out dec);
sum += dec;
}
int x = dgvTnasctn.CurrentRow.Index;
decimal d = Convert.ToDecimal(dgvTnasctn.Rows[x].Cells[8].Value.ToString());
d = Math.Round(d);
string a = d.ToString("0.00");
txtSubTot.Text = a;

Aarti Meswania 7-Sep-12 2:08am

ok then what you want to do now?
do you want to calculate price as per rate for each row in grid?

Shivani Dash 7-Sep-12 2:18am

see if we round 25.75 it'll bcum 26.00.I hv to add 26.00+28.00(2nd row price).Hv to add both the price of the row and will have 2 show in a textbox where had alredy shown the rounding value.

Aarti Meswania 7-Sep-12 2:23am

means as above code you want to display 'sum' variable in textbox?

Aarti Meswania 7-Sep-12 2:25am

post a new question with full details because can't get it

Shivani Dash 7-Sep-12 2:34am

ok..Can u gv me ur mail id i'll send u cleary wid attachment... :)

Shivani Dash 7-Sep-12 2:05am

ya total of all dt price.
suppose,1st column- 27.75 & 2nd 1-68.00
Hw to add bth of this n show?

Shivani Dash 7-Sep-12 2:15am

u understud my questn na?

Aarti Meswania 7-Sep-12 2:16am

no

Shivani Dash 7-Sep-12 2:27am

u understud now?

Shivani Dash 7-Sep-12 2:29am

ya the sum of that two price.

Aarti Meswania 7-Sep-12 2:32am

2 price? it is confusing
so please post your question with gridview column names and full description which output you want

Aarti Meswania 7-Sep-12 2:37am

sorry, dear no one will give mailid in this public post
just list your column name and describe your problem in better format using post new question so problem will be short-out very soon lot of persons will read and answer it. :)

Aarti Meswania 7-Sep-12 3:05am

delete comment and never post your mailid or mobile-nos on codeproject or public posts sites

Shivani Dash 7-Sep-12 3:06am

ya ya i knw juz 4 u hv sent.hv alrdy deleted.dnt worry.thanx 4 concern.