Mega Code Archive
Determine if a property exists in an object
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#region License and Copyright
/*
* Dotnet Commons Reflection
*
* Copyright 2005. EDWARD LIM
*
* 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.Collections.Specialized;
using System.Reflection;
//using Dotnet.Commons.Lang;
namespace Dotnet.Commons.Reflection
{
///
/// <summary>
/// This class contains utility methods that perform operations on object properties.
/// </summary>
///
/// <remarks>
/// Copyright 2006 by Edward Lim.
/// All rights reserved.
/// </remarks>
///
public sealed class PropertyUtils
{
private PropertyUtils() {}
/// --------------------------------------------------------------------
/// <summary>
/// Determine if a property exists in an object
/// </summary>
/// <param name="propertyName">Name of the property </param>
/// <param name="srcObject">the object to inspect</param>
/// <returns>true if the property exists, false otherwise</returns>
/// <exception cref="ArgumentNullException">if srcObject is null</exception>
/// <exception cref="ArgumentException">if propertName is empty or null </exception>
/// --------------------------------------------------------------------
public static bool Exists(string propertyName, object srcObject)
{
if (srcObject == null)
throw new System.ArgumentNullException("srcObject");
if ((propertyName == null) || (propertyName == String.Empty) || (propertyName.Length == 0))
throw new System.ArgumentException("Property name cannot be empty or null.");
PropertyInfo propInfoSrcObj = srcObject.GetType().GetProperty(propertyName);
return (propInfoSrcObj != null);
}
/// --------------------------------------------------------------------
/// <summary>
/// Determine if a property exists in an object
/// </summary>
/// <param name="propertyName">Name of the property </param>
/// <param name="srcObject">the object to inspect</param>
/// <param name="ignoreCase">ignore case sensitivity</param>
/// <returns>true if the property exists, false otherwise</returns>
/// <exception cref="ArgumentNullException">if srcObject is null</exception>
/// <exception cref="ArgumentException">if propertName is empty or null </exception>
/// --------------------------------------------------------------------
public static bool Exists(string propertyName, object srcObject, bool ignoreCase)
{
if (!ignoreCase)
return Exists(propertyName, srcObject);
if (srcObject == null)
throw new System.ArgumentNullException("srcObject");
if ((propertyName == null) || (propertyName == String.Empty) || (propertyName.Length == 0))
throw new System.ArgumentException("Property name cannot be empty or null.");
PropertyInfo [] propertyInfos = srcObject.GetType().GetProperties();
propertyName = propertyName.ToLower();
foreach(PropertyInfo propInfo in propertyInfos)
{
if (propInfo.Name.ToLower().Equals(propertyName))
return true;
}
return false;
}
}
}
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