C#类型转换，对象转换

public static class ConvertExections
{
	static Dictionary<PropertyInfo, PropertyInfo> GetMapping(PropertyInfo[] source, PropertyInfo[] target)
	{
		Dictionary<PropertyInfo, PropertyInfo> mapping = new Dictionary<PropertyInfo, PropertyInfo>();
		foreach (PropertyInfo p_target in target)
		{
			PropertyInfo p_source = source.Where(w => string.Equals(w.Name, p_target.Name, System.StringComparison.CurrentCultureIgnoreCase)).FirstOrDefault();
			if (p_source != null)
			{
				if (p_target.GetSetMethod() == null || p_source.GetGetMethod() == null)
					continue;
				mapping.Add(p_target, p_source);
			}
		}
		return mapping;
	}

	public static TTarget ConvertObject<TSource, TTarget>(this TSource obj)
		where TSource : class
		where TTarget : class, new()
	{
		PropertyInfo[] property_source = typeof(TSource).GetProperties(BindingFlags.Instance | BindingFlags.Public);
		PropertyInfo[] property_target = typeof(TTarget).GetProperties(BindingFlags.Instance | BindingFlags.Public);

		// 加载属性映射
		var mapping = GetMapping(property_source, property_target);

		TTarget result = new TTarget();
		foreach (PropertyInfo key in mapping.Keys)
		{
			var val = mapping[key].GetValue(obj);
			key.SetValue(result, val);
		}
		return result;
	}

	public static List<TTarget> ConvertArray<TSource, TTarget>(this List<TSource> data)
		where TSource : class
		where TTarget : class, new()
	{
		PropertyInfo[] property_source = typeof(TSource).GetProperties(BindingFlags.Instance | BindingFlags.Public);
		PropertyInfo[] property_target = typeof(TTarget).GetProperties(BindingFlags.Instance | BindingFlags.Public);

		// 加载属性映射
		var mapping = GetMapping(property_source, property_target);

		List<TTarget> result = new List<TTarget>();
		foreach (var obj in data)
		{
			TTarget _target = new TTarget();
			foreach (PropertyInfo key in mapping.Keys)
			{
				var val = mapping[key].GetValue(obj);
				key.SetValue(_target, val);
			}
			result.Add(_target);
		}
		return result;
	}

}