Set the specified public field value of an object : Type « Reflection « C# / C Sharp

1. C# / C Sharp
2. Reflection
3. Type

Set the specified public field value of an object

    

#region License and Copyright
/*
 * Dotnet Commons Reflection
 *
 * 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.IO;
using System.Reflection;
using System.Runtime.Serialization.Formatters.Binary;
using System.Text;

namespace Dotnet.Commons.Reflection
{
  /// -----------------------------------------------------------------------
  /// <summary>  
  /// This utility class contains a rich sets of utility methods that perform operations 
  /// on objects during runtime such as copying of property and field values
  /// between 2 objects, deep cloning of objects, etc.  
  /// </summary>
  /// -----------------------------------------------------------------------
  public abstract class ObjectUtils
  {


    /// ------------------------------------------------------------------------
    /// <summary>
    /// Set the specified <b>public</b> field value of an object
    /// </summary>
    /// <param name="vo">the Value Object on which setting is to be performed</param>
    /// <param name="fieldName">Field name</param>
    /// <param name="fieldValue">Value to be set</param>
    /// ------------------------------------------------------------------------
    public static object SetField(object vo, string fieldName, Object fieldValue)
    {
      if (vo == null)
        throw new System.ArgumentNullException("No object specified to set.");

      if (fieldName == null)
        throw new System.ArgumentNullException("No field name specified.");
      
      if ((fieldName == String.Empty) || (fieldName.Length < 1))
        throw new System.ArgumentException("Field name cannot be empty.");


      FieldInfo fieldInfo = vo.GetType().GetField(fieldName);

      if (fieldInfo == null)
        throw new System.ArgumentException("The class '" + vo.GetType().Name + "' does not have the field '"+ fieldName + "'");

      // Set the value 
      vo.GetType().InvokeMember(fieldInfo.Name,
                    BindingFlags.SetField,
                    null,
                    vo,
                    new object[]{fieldValue});
      return vo;
    }
   }
}

   
    
    
    
  

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