If necessary, adds zeros to the beginning of a value so that the total length matches the given precision : String Util « Data Types « C# / C Sharp






  1. C# / C Sharp
  2. Data Types
  3. String Util

If necessary, adds zeros to the beginning of a value so that the total length matches the given precision

    
     
//
// (C) Copyright 2009 Irantha Suwandarathna (irantha@gmail.com)
// All rights reserved.
//

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

namespace EffiProz.Core.Lib
{

    /** Provides a collection of convenience methods for processing and
     * creating objects with <code>String</code> value components.
     *
     * @author fredt@users
     * @author boucherb@users
     * @version 1.7.2
     * @since 1.7.0
     */
    public class StringUtil
    {
    /**
     * If necessary, adds zeros to the beginning of a value so that the total
     * length matches the given precision, otherwise trims the right digits.
     * Then if maxSize is smaller than precision, trims the right digits to
     * maxSize. Negative values are treated as positive
     */
        public static String toZeroPaddedString(long value, int precision,
                int maxSize)
        {

            StringBuilder sb = new StringBuilder();

            if (value < 0)
            {
                value = -value;
            }

            String s = value.ToString();

            if (s.Length > precision)
            {
                s = s.Substring(precision);
            }

            for (int i = s.Length; i < precision; i++)
            {
                sb.Append('0');
            }

            sb.Append(s);

            if (maxSize < precision)
            {
                sb.Length = maxSize;
            }

            return sb.ToString();
        }

    }
}








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