How can modify a field to pad the left side with zeroes so that field is 10 positions plus a decimal point using C#?

I am developing a C# Console application using Visual Studio 2005.
My code is as follows in the code section:

How could I change the code so that the field is padded with zeroes to the left?
The field has to have a minimum length of 2.

For example: value =                  35 (input)
                      value = 00000000.35 (output should be 10 positions plus the decimal point)
 


if (reader.Name == "csc:amount")
                        {
                            arr1[i, 9] = "GROUP_FIELD_NAME:CheckAmount";
                            
                            string value = reader.ReadElementContentAsString();

                            if (value.Length >= 2)
                            {
                                Int64 intTest = 0;
                                if (Int64.TryParse(value, out intTest) && intTest > 0)
                                    arr1[i, 10] = "GROUP_FIELD_VALUE:" + value.Insert(value.Length - 2, ".");
                                else
                                {
                                    arr1[i, 10] = "GROUP_FIELD_VALUE:" + value.Insert(value.Length - 2, ".");
                                    sw1.WriteLine("GROUP_FIELD_NAME:ItemSequence:" + itemsequence + ",GROUP_FIELD_NAME:CheckAmount" + "," + "GROUP_FIELD_VALUE:" + value);
                                }
                            }
                            else
                            {
                                arr1[i, 10] = "GROUP_FIELD_VALUE:" + value;
                                sw1.WriteLine("GROUP_FIELD_NAME:ItemSequence:" + itemsequence + " Field CheckAmount has to be a minimum of 2 characters");
                            }                                     
                        }

Open in new window

zimmer9Asked:
Who is Participating?
 
Todd GerbertConnect With a Mentor IT ConsultantCommented:
Use Double.TryParse() to convert the string into a number. Divide that number by 100 to put a decimal point two digits in from the right. Double.ToString() can be used to output the number to a string with a specific number of digits.

http://msdn.microsoft.com/en-us/library/system.double.tryparse.aspx
http://msdn.microsoft.com/en-us/library/kfsatb94.aspx

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

class Program
{
	static void Main(string[] args)
	{
		string userInput = String.Empty;
		double value;

		// Get a string from the user that represents a number
		Console.Write("Enter a number: ");
		userInput = Console.ReadLine();

		// Try to convert the string to a double
		if (!Double.TryParse(userInput, out value))
		{
			Console.WriteLine("You didn't enter a valid number. Press any key to exit.");
			Console.ReadKey();
			Environment.Exit(1);
		}

		// Divide the number by 100 to put a decimal point
		// two digits in from the right
		value = value / 100;

		// Output the result using Double.ToString()
		Console.WriteLine(value.ToString("0000000000.00"));
		
		// Another way to output the number as string...
		Console.WriteLine("{0:0000000000.00}", value);

		Console.Write("Press any key to exit...");
		Console.ReadKey();
		Environment.Exit(0);
	}
}

Open in new window

0
 
zimmer9Author Commented:
The value for the input field titled "value" can be any length between a
a minimum length of 2 and a maximum length of 10.
0
Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

 
Jacques Bourgeois (James Burger)PresidentCommented:
value = 35; // or any input
value = ( "." + value ).PadLeft(11,'0');
0
 
zimmer9Author Commented:
Do you mean to modify as follows?
If I do, then initiial value = 0000185512 will result in value = .0000185512

if (value.Length >= 2)
{
          Int64 intTest = 0;
          if (Int64.TryParse(value, out intTest) && intTest > 0)
          {
                value = ("." + value).PadLeft(11, '0');
                 arr1[i, 10] = "GROUP_FIELD_VALUE:" + value;
          }



0
 
Jacques Bourgeois (James Burger)PresidentCommented:
Your sample value did not show that there could be zeros in front of the value. By looking closely, maybe you could also have spaces, so lets get rid of both first:

string value = "  000350876"; // or any input that has spaces and/or zeros at the begining
value = ( value.Trim ( ) ).TrimStart ( '0' );
value = ( "." + value ).PadLeft(11,'0');
0
 
zimmer9Author Commented:
string value = "35"; // or any input that has spaces and/or zeros at the begining
value = ( value.Trim ( ) ).TrimStart ( '0' );
value = ( "." + value ).PadLeft(11,'0');
00000000.35    works fine

However
string value = "0000185512"; // or any input that has spaces and/or zeros at the begining
value = ( value.Trim ( ) ).TrimStart ( '0' );
value = 185512  <---     RESULT
value = ( "." + value ).PadLeft(11,'0');
0000.185512     <----    RESULT     should be 1855.12   WRONG RESULT
0
 
Jacques Bourgeois (James Burger)PresidentCommented:
You might understand what you need, but you communicate it very badly.

For example: value =                  35 (input)
                      value = 00000000.35 (output should be 10 positions plus the decimal point)

RESULT     should be 1855.12   WRONG RESULT

How come that you want 10 positions for 35, but only 6 for 185512?
How come that you want the extra zeroes on 35, but not on 185512?
Where did you specify that you always wanted only 2 decimals?

If the code you posted was not giving you the results you wanted, if was useless for me to look at it, so I answered to the sample input and output given in the first post. When you told me that this was not good for another input, without telling me the result you wanted, I gave you something that gave the same kind of result for both values. Once again, if your code did not do the work, it was useless for me to try to understand it.

State you needs clearly, and you will have an answer that works for all situations. Keep changing the relation between input and output, or giving incomplete information, and we will be at it for days.
0
 
Todd GerbertIT ConsultantCommented:
Output from a couple tests...
Enter a number: 12
User input: 12
Result: 0000000000.12
Press any key to exit...

Open in new window


Enter a number: 123456
User input: 123456
Result: 0000001234.56
Press any key to exit...

Open in new window


Enter a number: 1234567890
User input: 1234567890
Result: 0012345678.90
Press any key to exit...

Open in new window


This one comes out a little funky because the number is so big and the division by 100 results in a weird result - but if your numbers don't ever get this big it shouldn't be an issue.
Enter a number: 1122334455667788
User input: 1122334455667788
Result: 11223344556677.90
Press any key to exit...

Open in new window

0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.