format decimal number using ToString [duplicate] - c#

This question already has answers here:
Using String Format to show decimal up to 2 places or simple integer
(18 answers)
Closed 9 years ago.
If I got decimal number like 14.50 and I want to be represented like decimal 10.2
0000000014.50
how can I do this?
Thank you

Use custom numeric format string:
var value = 14.50m;
string valueString = value.ToString("0000000000.00");
0 is a placeholder: Replaces the zero with the corresponding digit if one is present; otherwise, zero appears in the result string.

If you don't have an issue with the data type being converted to string then you could use Padding in c#.
Refer the link below :
http://msdn.microsoft.com/en-us/library/66f6d830(v=vs.100).aspx

Related

C# - wrong string to single conversion [duplicate]

This question already has answers here:
How do I parse a string with a decimal point to a double?
(19 answers)
Closed 6 years ago.
I am writing a program to get data from microcontroller to PC. The data is in float format. I tried to convert the string into float using Convert.ToSingle(string), but the conversion result is wrong:
"0.11" is converted to 11, sometimes 12.
"0.10" is converted to 10. etc
As you can see, it is losing the leading 0. , which is unexpected. How could this happen?
Your problem is culture specific. In some cultures float numbers are separated by a , and in some they are separated by a .
In your case
String a = "0,11";
Convert.ToSingle(a)
should result in your desired outcome of 0,11.
So you should explicitly specify a relevant culture that uses . as decimal separator. One possibility is the invariant culture which is based on the English language.
Try the following:
String a = "0.11";
Convert.ToSingle(a, CultureInfo.InvariantCulture)

How to show Zeros when a decimal is converted to string? [duplicate]

This question already has answers here:
Why does 0.ToString("#.##") return an empty string instead of 0.00 or at least 0?
(5 answers)
Closed 8 years ago.
I have several decimal numbers that I need to show as strings (no need for decimal places). I use the following code:
mytextblock.text= mydecimalnumber.ToString("#");
However this code will show nothing if the number is 0. I need to display a "0" instead of an empty string. I can do this using if and else but I don't think this is the best solution to do with many decimal variables.
Some user "David.." posted this answer and it worked for me but then he deleted it later:
He mentioned that ToString("#") will only show digits that are not zeros.
In order to default to 0, I should use ToString("0")

Force two decimal places in C# [duplicate]

This question already has answers here:
Leave only two decimal places after the dot
(13 answers)
Closed 8 years ago.
I've this problem and can't find a solution.
This is super easy and i don't know why can't i find a solution.
Problem:
if a value returns for example "16.60", in c# i'll read "16.6", but i need 0 as well, because of paypal API, wich only accepts a value with no decimal numbers, or if it has to have decimal numbers the minimum and maximum must be 2.
So how can i make this?
i've tried this:
string value_f = "16,6";
decimal value_f_d = decimal.Parse(value_f);
value_f_d = (decimal)Math.Round(value_f_d, 2);
value_f = value_f_d.ToString("#.##");
value_f = value_f.Replace(',', '.');
i want this output: 16.60, but gives this: 16.6
string output = value_f_d.ToString("#.00", CultureInfo.InvariantCulture);
(using System.Globalization in your using declarations at the top)

How to represent comma's in string? [duplicate]

This question already has answers here:
.NET String.Format() to add commas in thousands place for a number
(23 answers)
Closed 9 years ago.
I have a integer like this i.e 3356890. I'm converting it to string and showing on screen.
Now I want to display like this 3,356,890.
How to do?
You can use:
value = 1234567890;
Console.WriteLine(value.ToString("0,0", CultureInfo.InvariantCulture));
// Displays 1,234,567,890
However, for the purpose of internationalization and localization, it's probably best to allow the user's current culture settings to determine how to format the number.
Further Reading
Custom Numeric Format Strings
Take a look please here,
Number string format
string res = string.Format(CultureInfo.InvariantCulture, "{0:#,##0}", 3356890);
int val = 3356890;
string valString = val.ToString("#,##0")

Trimming a float [duplicate]

This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Leave only two decimal places after the dot
Formatting a float to 2 decimal places
If I have a float that consists of something like 153.2154879, is there any way to convert it to string but only show 4 decimal places? I know I can format it using "000.000", but the front number doesnt always have to be 3 digits. So is there a way to show all the front numbers (153), but only the first 4 characters after the point in a string?
Something like this should do:
your_number.ToString("0.####");
This will show a max of 4 decimal places.
I usually use a format string like "#0.0000".
You can use the C# function Math.Round function.
float a= 153.213456;
Math.Round(a,3);
this would round up the number to 153.213
then get convert it to string.

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