Converts the specified collection to its string representation. : ICollection « Collections Data Structure « C# / C Sharp

1. C# / C Sharp
2. Collections Data Structure
3. ICollection

Converts the specified collection to its string representation.

  

#region License and Copyright
/*
 * Dotnet Commons Collections 
 * 
 *
 * This library is free software; you can redistribute it and/or modify it 
 * under the terms of the GNU Lesser General Public License as published by 
 * the Free Software Foundation; either version 2.1 of the License, or 
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License 
 * for more details. 
 *
 * You should have received a copy of the GNU Lesser General Public License 
 * along with this library; if not, write to the 
 * Free Software Foundation, Inc., 
 * 59 Temple Place, 
 * Suite 330, 
 * Boston, 
 * MA 02111-1307 
 * USA 
 * 
 */
#endregion

using System;
using System.Collections;

namespace Dotnet.Commons.Lang {

    class MainClass{
        /// <summary>
        /// Converts the specified collection to its string representation.
        /// </summary>
        /// <param name="c">The collection to convert to string.</param>
        /// <returns>A string representation of the specified collection.</returns>
        public static System.String CollectionToString(System.Collections.ICollection c)
        {
            System.Text.StringBuilder s = new System.Text.StringBuilder();

            if (c != null)
            {

                System.Collections.ArrayList l = new System.Collections.ArrayList(c);

                bool isDictionary = (c is System.Collections.BitArray || c is System.Collections.Hashtable || c is System.Collections.IDictionary || c is System.Collections.Specialized.NameValueCollection || (l.Count > 0 && l[0] is System.Collections.DictionaryEntry));
                for (int index = 0; index < l.Count; index++)
                {
                    if (l[index] == null)
                        s.Append("null");
                    else if (!isDictionary)
                        s.Append(l[index]);
                    else
                    {
                        isDictionary = true;
                        if (c is System.Collections.Specialized.NameValueCollection)
                            s.Append(((System.Collections.Specialized.NameValueCollection)c).GetKey(index));
                        else
                            s.Append(((System.Collections.DictionaryEntry)l[index]).Key);
                        s.Append("=");
                        if (c is System.Collections.Specialized.NameValueCollection)
                            s.Append(((System.Collections.Specialized.NameValueCollection)c).GetValues(index)[0]);
                        else
                            s.Append(((System.Collections.DictionaryEntry)l[index]).Value);

                    }
                    if (index < l.Count - 1)
                        s.Append(", ");
                }

                if (isDictionary)
                {
                    if (c is System.Collections.ArrayList)
                        isDictionary = false;
                }
                if (isDictionary)
                {
                    s.Insert(0, "{");
                    s.Append("}");
                }
                else
                {
                    s.Insert(0, "[");
                    s.Append("]");
                }
            }
            else
                s.Insert(0, "null");
            return s.ToString();
        }
   }
}

   
    
  

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