/// <summary>/// 大叔为DisplayName进行了扩展/// </summary>public static class DisplayNameExtensions{/// <summary>/// 显示字段的名称DisplayName的值/// </summary>/// <typeparam name="TModel"></typeparam>/// <typeparam name="TValue"></typeparam>/// <param name="html"></param>/// <param name="expression"></param>/// <returns></returns>public static MvcHtmlString DisplayNameFor<TModel, TValue>(this HtmlHelper<PagedList<TModel>> html, Expression<Func<TModel, TValue>> expression){Type t = typeof(TModel);// string propertyName = GetPropertyName<TModel, TValue>(expression);var complex = ExpressionHelper.GetExpressionText(expression).Split('.');string propertyName = complex.Last();if (complex.Count() > 1){t = t.GetProperty(complex[complex.Length - 2]).PropertyType;}var p = t.GetProperty(propertyName);if (p != null){var attr1 = p.GetCustomAttribute(typeof(DisplayNameAttribute));var attr2 = p.GetCustomAttribute(typeof(DisplayAttribute));if (attr1 != null){return MvcHtmlString.Create(((System.ComponentModel.DisplayNameAttribute)attr1).DisplayName);}if (attr2 != null){return MvcHtmlString.Create(((DisplayAttribute)attr2).Name);}}return MvcHtmlString.Create(string.Empty);}public static MvcHtmlString DisplayNameFor<TModel, TEnumerable, TValue>(this HtmlHelper<TModel> html, Expression<Func<TModel, PagedList<TEnumerable>>> enumerableExpression, Expression<Func<TEnumerable, TValue>> valueExpression){var metadata = ModelMetadata.FromLambdaExpression(valueExpression, new ViewDataDictionary<TEnumerable>());string displayName = metadata.DisplayName ?? metadata.PropertyName ?? ExpressionHelper.GetExpressionText(valueExpression).Split('.').Last();return new MvcHtmlString(HttpUtility.HtmlEncode(displayName));}}