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Thursday, July 21, 2005
A few basic things
Decimal Places
[Beginner]
There are quite a few things to know before really getting the hang of C#, and I believe that learning about how to format numbers that need to be output is something pretty basic, that many programmers disregard. However, here's a basic tutorial about controlling the number of decimal places that a decimal type displays.
Let's move on directly to the code. It's simple. Nothing complicated to understand. Check it out:
Notice that I've included System.Globalization in the usings. This is a namespace that is required in order to use the NumberFormatInfo class.
What I did was basically to instantiate a NumberFormatInfo class, and play with the NumberDecimalDigits property (which I kept incrementing). Watch the results on a console :) Also, note the use of the overloaded ToString() method, in which I passed two parameters, namely a string ("N"), and the NumberFormatInfo class that I instantiated.
Hope this little code snippet helps!
[Beginner]
There are quite a few things to know before really getting the hang of C#, and I believe that learning about how to format numbers that need to be output is something pretty basic, that many programmers disregard. However, here's a basic tutorial about controlling the number of decimal places that a decimal type displays.
Let's move on directly to the code. It's simple. Nothing complicated to understand. Check it out:
using System;
using System.Globalization;
namespace NumberFormat
{
/// <summary>
/// MultiParam App
/// </summary>
class Class1
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main(string[] args)
{
NumberFormatInfo myFormat = new NumberFormatInfo();
double d = 15.6781005479;
for (int i=0; i<=10; i++)
{
myFormat.NumberDecimalDigits = i;
Console.WriteLine(i.ToString() +
" decimal digit(s): \t\t"+d.ToString("N", myFormat));
}
Console.ReadLine();
}
}
}
Notice that I've included System.Globalization in the usings. This is a namespace that is required in order to use the NumberFormatInfo class.
What I did was basically to instantiate a NumberFormatInfo class, and play with the NumberDecimalDigits property (which I kept incrementing). Watch the results on a console :) Also, note the use of the overloaded ToString() method, in which I passed two parameters, namely a string ("N"), and the NumberFormatInfo class that I instantiated.
Hope this little code snippet helps!
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