Mega Code Archive
CopyClone all the element from a dictionary to another
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#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;
using System.Text;
namespace Dotnet.Commons.Collections
{
///
/// <summary>
///
/// This utility class extends the operations for manipulating
/// Dictionary collections.
///
///
/// </summary>
///
public class DictionaryUtils
{
private DictionaryUtils()
{
}
/// --------------------------------------------------------------------------
/// <summary>
/// Copy all the element from a dictionary to another. The destination dictionary
/// will be first cleared before the the copy is performed.
///
/// If the source dictionary is empty. The Copy process will not occur. The Destination
/// dictionary will retain its contents.
/// <seealso cref="Add"/>
/// </summary>
/// <param name="srcDict">Dictionary to copy from</param>
/// <param name="destDict">Dictionary to copy to</param>
/// --------------------------------------------------------------------------
public static void Copy(IDictionary srcDict, ref IDictionary destDict)
{
if (srcDict == null)
throw new System.ArgumentNullException("Source Dictionary cannot be null.");
if (destDict == null)
throw new System.ArgumentNullException("Destination Dictionary cannot be null.");
if (srcDict.Count == 0)
return;
destDict.Clear();
foreach(object key in srcDict.Keys)
{
destDict.Add(key, srcDict[key]);
}
}
/// --------------------------------------------------------------------------
/// <summary>
/// Shallow cloning of a dictionary.
/// </summary>
/// <param name="srcDict">Dictionary to clone</param>
/// <returns>Cloned dictionary</returns>
/// --------------------------------------------------------------------------
public static IDictionary Clone(IDictionary srcDict)
{
Type srcDicType = srcDict.GetType();
IDictionary cloned = (IDictionary) Activator.CreateInstance(srcDicType);
Copy(srcDict, ref cloned);
return cloned;
}
}
}
]]>