How to change the decimal to 12 digit string [closed] - c#

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How to change the double (currency) to 12 digit in c# toString();
For example
12.50 => 000000001250


Try this:
string value = ((decimal)(12.50 * 100)).ToString().PadLeft(12, '0');


int a = (int)(12.50 * 100);
Console.WriteLine((a).ToString("D12"));


Try this
string formattedValue = value.ToString("000000000000");
value being the input and formattedValue as the output.

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How to represent 0x12345678 in C# [closed]

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My question is how to defined "0x12345678" values in C#?
I have the values from C code (header files), but need to translate them to C#.
// C
#define PARAM_START_ENABLE 0x2b15d3fa
//C#
public const uint PARAM_START_ENABLE = ???

Exactly same way:
public const uint PARAM_START_ENABLE = 0x2b15d3fa;
In C# integer literals can be represented in decimal and hexadecimal forms - specification.

How to count how many times specific text exist in the DataTable? [closed]

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I have a DataTable with some columns. For example one of this columns contains the next values:
SOMEtext
SOMEnumber
SOMEnumber
SOMEnumber
SOMEtext
SOMEtext
SOMEnumber
SOMEtext
All of these values are strings
How can I count how many 'number' do I have in my table?

Update: A better method to use is Compute():
int count = Convert.ToInt32(
dataTable.Compute("Count(myColumnname)", "myColumnname Like '%number%'"));
You can use the DataTable.Select method:
DataRow[] rows = dataTable.Select("columnname Like '%number%'");
int count = rows.Length;

How to display a string variable in a specific number format like "#,0.##" [closed]

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I have a typed dataset with a column called price, which is of string datatype. And I'm showing this via ultrgrid/datagrid
How can I show the price in number format.
For example: price ==123456
in the grid it should be like 12,354,56

Try this
var a = price.ToString("##,###,##");
Reference

Custom Numeric Format Strings!

Look at some of the related links to the right of the screen. Some of them even ask the same question as you !

Linq query to get count like select 'iphone',count(*) [closed]

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This question appears to be off-topic because it lacks sufficient information to diagnose the problem. Describe your problem in more detail or include a minimal example in the question itself.
Closed 8 years ago.
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SQL statement :
select 'iphone',count(*) from tablename where id=5
Result:
Name Num
'iphone' 50
How should i do with linq to get the same result(SQL statement)?
thanks in advance.

var Result = new { Name = "iPhone", Num = yourSequence.Count(x => x.Id == 5) };

Splitting a string into parts [closed]

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I would like to split a string in C# for example:
120530
so it will be like this:
Day: 12
Time: 0530
But it will be without spaces, just as it is 120530
How can I do that?

I'm assuming that you know that it will always be 6 digits with the first 2 being day and last 4 being time.
Utilize the Substring() method of your string object...
string allTogether = "120530";
string day = allTogether.Substring(0, 2);
string time = allTogether.Substring(2);

var dayAndTime = "120530";
var day = dayAndTime.Substring(0, 2);
var time = dayAndTime.Substring(2, 4);

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