Get a property value given its name : PropertyInfo « Reflection « C# / C Sharp

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C# / C Sharp » Reflection » PropertyInfoScreenshots 
Get a property value given its name
 

#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>
    /// Get a property value given its name
    /// </summary>
    /// <param name="srcObj">object to inspect</param>
    /// <param name="propertyName">Name of the property to retrieve the value from</param>
    /// <returns>property value</returns>
    /// ------------------------------------------------------------------------
    public static Object GetProperty(object srcObj, string propertyName)
    {

      PropertyInfo propInfoObj = srcObj.GetType().GetProperty(propertyName);

      if (propInfoObj == null)
        return null;

      // Get the value from property.
      object srcValue = srcObj
                .GetType()
                .InvokeMember(propInfoObj.Name,
                        BindingFlags.GetProperty,
                        null,
                        srcObj,
                        null);

      return srcValue;
    }

        /// <summary>
        /// Get a property value given its name. 
        /// </summary>
        /// <param name="srcObj">object to inspect</param>
        /// <param name="propertyName">Name of the property to retrieve the value from</param>
        /// <param name="ignoreCase">ignore case sensitivity with the supplied property name.</param>
        /// <returns>value of the Property request if found, <b>null</b> otherwise.</returns>
        /// <remarks>This method will get property in any scope, including public and non public,
        /// instance and static.</remarks>
        public static Object GetProperty(object srcObj, string propertyName, bool ignoreCase)
        {
            PropertyInfo propInfoObj;

            BindingFlags bindingAttrs = BindingFlags.Instance | BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic;

            bindingAttrs = (ignoreCase)? bindingAttrs | BindingFlags.IgnoreCase : bindingAttrs;

            propInfoObj = srcObj.GetType().GetProperty(propertyName, bindingAttrs);
                        
            if (propInfoObj == null)
                return null;

            // Get the value from property.
            object srcValue = srcObj
                                .GetType()
                                .InvokeMember(propInfoObj.Name,
                                                BindingFlags.GetProperty,
                                                null,
                                                srcObj,
                                                null);

            return srcValue;
        }
    }
}

   
  
Related examples in the same category
1.Obtaining member information from a class.
2.Print Property Info
3.Type.GetProperties
4.IsClass, Namespace, FullName, IsAbstract, IsPublic, IsInterface, IsEnum
5.Determines whether the member is an indexed property.
6.Determines whether the property is an indexed property.
7.Get Fields And Properties
8.Get Properties
9.Gets a property's value
10.Gets a property's type
11.Gets a property's parent object
12.Get Property from Property path
13.Copies a field value
14.Get the names of all the properties of an object
15.Determine if a property exists in an object
16.Get the type of the Property.
17.Set the value of a property that has been declared as an Enum type using reflection
18.Determine if a property's Type is an enum
19.Return true> if the specified property name identifies a readable property on the specified object;
20.Return true> if the specified property name identifies a writeable property on the specified object;
21.Integration Property To String
22.Gets the value of a static property on a specific type.
23.Gets the name of the property held within the expression
24.Gets the specified attribute from the PropertyDescriptor.
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