diff --git a/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableExecuteSql.cs b/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableExecuteSql.cs
index 284527d09..5b553f702 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableExecuteSql.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableExecuteSql.cs
@@ -228,7 +228,7 @@ namespace SqlSugar
         {
             return this.ToList().ToPivotTable(columnSelector, rowSelector, dataSelector);
         }
-        public virtual List<dynamic> ToPivotList<TColumn, TRow, TData>(Func<T, TColumn> columnSelector, Expression<Func<T, TRow>> rowSelector, Func<IEnumerable<T>, TData> dataSelector)
+        public virtual IEnumerable<dynamic> ToPivotList<TColumn, TRow, TData>(Func<T, TColumn> columnSelector, Expression<Func<T, TRow>> rowSelector, Func<IEnumerable<T>, TData> dataSelector)
         {
             return this.ToList().ToPivotList(columnSelector, rowSelector, dataSelector);
         }
diff --git a/Src/Asp.Net/SqlSugar/Interface/IQueryable.cs b/Src/Asp.Net/SqlSugar/Interface/IQueryable.cs
index 2b704f1a0..586a0e900 100644
--- a/Src/Asp.Net/SqlSugar/Interface/IQueryable.cs
+++ b/Src/Asp.Net/SqlSugar/Interface/IQueryable.cs
@@ -286,7 +286,7 @@ namespace SqlSugar
         ISugarQueryable<T> IgnoreColumns(Expression<Func<T, object>> columns);
         ISugarQueryable<T> IgnoreColumns(params string[] columns);
         DataTable ToPivotTable<TColumn, TRow, TData>(Func<T, TColumn> columnSelector,Expression<Func<T, TRow>> rowSelector,Func<IEnumerable<T>, TData> dataSelector);
-        List<dynamic> ToPivotList<TColumn, TRow, TData>(Func<T, TColumn> columnSelector, Expression<Func<T, TRow>> rowSelector, Func<IEnumerable<T>, TData> dataSelector);
+        IEnumerable<dynamic> ToPivotList<TColumn, TRow, TData>(Func<T, TColumn> columnSelector, Expression<Func<T, TRow>> rowSelector, Func<IEnumerable<T>, TData> dataSelector);
         string ToPivotJson<TColumn, TRow, TData>(Func<T, TColumn> columnSelector, Expression<Func<T, TRow>> rowSelector, Func<IEnumerable<T>, TData> dataSelector);
         ISugarQueryable<T> SplitTable(Func<List<SplitTableInfo>,IEnumerable<SplitTableInfo>> getTableNamesFunc);
         ISugarQueryable<T> SplitTable(DateTime beginTime,DateTime endTime);
diff --git a/Src/Asp.Net/SqlSugar/Utilities/DataTableExtensions.cs b/Src/Asp.Net/SqlSugar/Utilities/DataTableExtensions.cs
index 8582c05ec..615b10138 100644
--- a/Src/Asp.Net/SqlSugar/Utilities/DataTableExtensions.cs
+++ b/Src/Asp.Net/SqlSugar/Utilities/DataTableExtensions.cs
@@ -19,59 +19,51 @@ namespace SqlSugar
     Func<IEnumerable<T>, TData> dataSelector)
         {
             DataTable table = new DataTable();
+
             var rowName = new List<string>();
             if (rowSelector.Body is MemberExpression)
                 rowName.Add(((MemberExpression)rowSelector.Body).Member.Name);
             else
                 rowName.AddRange(((NewExpression)rowSelector.Body).Arguments.Select(it => it as MemberExpression).Select(it => it.Member.Name));
 
+
             table.Columns.AddRange(rowName.Select(x => new DataColumn(x)).ToArray());
             var columns = source.Select(columnSelector).Distinct();
-
-            foreach (var column in columns)
-                table.Columns.Add(new DataColumn(column?.ToString()));
+            table.Columns.AddRange(columns.Select(x => new DataColumn(x?.ToString())).ToArray());
 
             var rows = source.GroupBy(rowSelector.Compile())
-                             .Select(rowGroup => new
-                             {
-                                 Key = rowGroup.Key,
-                                 Values = columns.GroupJoin(
-                                     rowGroup,
-                                     c => c,
-                                     r => columnSelector(r),
-                                     (c, columnGroup) => dataSelector(columnGroup))
-                             });
-
-            foreach (var row in rows)
-            {
-                var dataRow = table.NewRow();
-                var items = row.Values.Cast<object>().ToList();
-                // 获取匿名对象的动态类型  
-                var anonymousType = row.Key.GetType();
-
-                // 获取匿名对象的所有属性  
-                var properties = anonymousType.GetProperties();
-
-                for (var i = 0; i < rowName.Count; i++)
-                {
-                    items.Insert(i, properties[i].GetValue(row.Key, null));
-                }
-                dataRow.ItemArray = items.ToArray();
-                table.Rows.Add(dataRow);
-            }
+                  .Select(rowGroup =>
+                  {
+                      var anonymousType = rowGroup.Key.GetType();
+                      var properties = anonymousType.GetProperties();
+                      var row = table.NewRow();
+                      columns.GroupJoin(rowGroup, c => c, r => columnSelector(r),
+                                               (c, columnGroup) =>
+                                               {
 
+                                                   var dic = new Dictionary<string, object>();
+                                                   if (c != null)
+                                                       dic[c.ToString()] = dataSelector(columnGroup);
+                                                   return dic;
+                                               })
+                            .SelectMany(x => x)
+                            .Select(x => row[x.Key] = x.Value)
+                            .SelectMany(x => properties, (x, y) => row[y.Name] = y.GetValue(rowGroup.Key, null))
+                            .ToArray();
+                      table.Rows.Add(row);
+                      return row;
+                  }
+                  ).ToList();
             return table;
         }
 
-        public static List<dynamic> ToPivotList<T, TColumn, TRow, TData>(
-                                                                        this IEnumerable<T> source,
-                                                                        Func<T, TColumn> columnSelector,
-                                                                        Expression<Func<T, TRow>> rowSelector,
-                                                                        Func<IEnumerable<T>, TData> dataSelector)
+        public static IEnumerable<dynamic> ToPivotList<T, TColumn, TRow, TData>(
+            this IEnumerable<T> source,
+            Func<T, TColumn> columnSelector,
+            Expression<Func<T, TRow>> rowSelector,
+            Func<IEnumerable<T>, TData> dataSelector)
         {
 
-            var arr = new List<dynamic>();
-            var cols = new List<string>();
             var rowName = new List<string>();
             if (rowSelector.Body is MemberExpression)
                 rowName.Add(((MemberExpression)rowSelector.Body).Member.Name);
@@ -80,47 +72,27 @@ namespace SqlSugar
 
             var columns = source.Select(columnSelector).Distinct();
 
-            cols = rowName.Concat(columns.Select(x => x?.ToString())).ToList();
-
             var rows = source.GroupBy(rowSelector.Compile())
-                             .Select(rowGroup => new
-                             {
-                                 Key = rowGroup.Key,
-                                 Values = columns.GroupJoin(
-                                     rowGroup,
-                                     c => c,
-                                     r => columnSelector(r),
-                                     (c, columnGroup) => dataSelector(columnGroup))
-                             });
-
-            foreach (var row in rows)
-            {
-                var items = row.Values.Cast<object>().ToList();
-
-                // 获取匿名对象的动态类型  
-                var anonymousType = row.Key.GetType();
-
-                // 获取匿名对象的所有属性  
-                var properties = anonymousType.GetProperties();
-
-                for (var i = 0; i < rowName.Count; i++)
+                .Select(rowGroup =>
                 {
-                    items.Insert(i, properties[i].GetValue(row.Key, null));
-                }
-                var obj = GetAnonymousObject(cols, items);
-                arr.Add(obj);
-            }
-            return arr;
-        }
-        private static dynamic GetAnonymousObject(IEnumerable<string> columns, IEnumerable<object> values)
-        {
-            IDictionary<string, object> eo = new ExpandoObject() as IDictionary<string, object>;
-            int i;
-            for (i = 0; i < columns.Count(); i++)
-            {
-                eo.Add(columns.ElementAt<string>(i), values.ElementAt<object>(i));
-            }
-            return eo;
+                    var anonymousType = rowGroup.Key.GetType();
+                    var properties = anonymousType.GetProperties();
+                    IDictionary<string, object> row = new ExpandoObject();
+                    columns.GroupJoin(rowGroup, c => c, r => columnSelector(r),
+                                            (c, columnGroup) =>
+                                            {
+                                                IDictionary<string, object> dic = new ExpandoObject();
+                                                if (c != null)
+                                                    dic[c.ToString()] = dataSelector(columnGroup);
+                                                return dic;
+                                            })
+                         .SelectMany(x => x)
+                         .Select(x => row[x.Key] = x.Value)
+                         .SelectMany(x => properties, (x, y) => row[y.Name] = y.GetValue(rowGroup.Key, null))
+                         .ToList();
+                    return row;
+                });
+            return rows;
         }
     }
 }
diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableExecuteSql.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableExecuteSql.cs
index 284527d09..5b553f702 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableExecuteSql.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableExecuteSql.cs
@@ -228,7 +228,7 @@ namespace SqlSugar
         {
             return this.ToList().ToPivotTable(columnSelector, rowSelector, dataSelector);
         }
-        public virtual List<dynamic> ToPivotList<TColumn, TRow, TData>(Func<T, TColumn> columnSelector, Expression<Func<T, TRow>> rowSelector, Func<IEnumerable<T>, TData> dataSelector)
+        public virtual IEnumerable<dynamic> ToPivotList<TColumn, TRow, TData>(Func<T, TColumn> columnSelector, Expression<Func<T, TRow>> rowSelector, Func<IEnumerable<T>, TData> dataSelector)
         {
             return this.ToList().ToPivotList(columnSelector, rowSelector, dataSelector);
         }
diff --git a/Src/Asp.NetCore2/SqlSugar/Interface/IQueryable.cs b/Src/Asp.NetCore2/SqlSugar/Interface/IQueryable.cs
index 2b704f1a0..586a0e900 100644
--- a/Src/Asp.NetCore2/SqlSugar/Interface/IQueryable.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Interface/IQueryable.cs
@@ -286,7 +286,7 @@ namespace SqlSugar
         ISugarQueryable<T> IgnoreColumns(Expression<Func<T, object>> columns);
         ISugarQueryable<T> IgnoreColumns(params string[] columns);
         DataTable ToPivotTable<TColumn, TRow, TData>(Func<T, TColumn> columnSelector,Expression<Func<T, TRow>> rowSelector,Func<IEnumerable<T>, TData> dataSelector);
-        List<dynamic> ToPivotList<TColumn, TRow, TData>(Func<T, TColumn> columnSelector, Expression<Func<T, TRow>> rowSelector, Func<IEnumerable<T>, TData> dataSelector);
+        IEnumerable<dynamic> ToPivotList<TColumn, TRow, TData>(Func<T, TColumn> columnSelector, Expression<Func<T, TRow>> rowSelector, Func<IEnumerable<T>, TData> dataSelector);
         string ToPivotJson<TColumn, TRow, TData>(Func<T, TColumn> columnSelector, Expression<Func<T, TRow>> rowSelector, Func<IEnumerable<T>, TData> dataSelector);
         ISugarQueryable<T> SplitTable(Func<List<SplitTableInfo>,IEnumerable<SplitTableInfo>> getTableNamesFunc);
         ISugarQueryable<T> SplitTable(DateTime beginTime,DateTime endTime);
diff --git a/Src/Asp.NetCore2/SqlSugar/Utilities/DataTableExtensions.cs b/Src/Asp.NetCore2/SqlSugar/Utilities/DataTableExtensions.cs
index 0065be726..bedf25e72 100644
--- a/Src/Asp.NetCore2/SqlSugar/Utilities/DataTableExtensions.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Utilities/DataTableExtensions.cs
@@ -2,10 +2,8 @@
 using System.Collections.Generic;
 using System.Data;
 using System.Dynamic;
-using System.IO;
 using System.Linq;
 using System.Linq.Expressions;
-using System.Reflection;
 using System.Text;
 using System.Text.RegularExpressions;
 using System.Threading.Tasks;
@@ -15,65 +13,57 @@ namespace SqlSugar
     internal static class DataTableExtensions
     {
         public static DataTable ToPivotTable<T, TColumn, TRow, TData>(
-    this IEnumerable<T> source,
-    Func<T, TColumn> columnSelector,
-    Expression<Func<T, TRow>> rowSelector,
-    Func<IEnumerable<T>, TData> dataSelector)
+            this IEnumerable<T> source,
+            Func<T, TColumn> columnSelector,
+            Expression<Func<T, TRow>> rowSelector,
+            Func<IEnumerable<T>, TData> dataSelector)
         {
             DataTable table = new DataTable();
+
             var rowName = new List<string>();
             if (rowSelector.Body is MemberExpression)
                 rowName.Add(((MemberExpression)rowSelector.Body).Member.Name);
             else
                 rowName.AddRange(((NewExpression)rowSelector.Body).Arguments.Select(it => it as MemberExpression).Select(it => it.Member.Name));
 
+
             table.Columns.AddRange(rowName.Select(x => new DataColumn(x)).ToArray());
             var columns = source.Select(columnSelector).Distinct();
-
-            foreach (var column in columns)
-                table.Columns.Add(new DataColumn(column?.ToString()));
+            table.Columns.AddRange(columns.Select(x => new DataColumn(x?.ToString())).ToArray());
 
             var rows = source.GroupBy(rowSelector.Compile())
-                             .Select(rowGroup => new
-                             {
-                                 Key = rowGroup.Key,
-                                 Values = columns.GroupJoin(
-                                     rowGroup,
-                                     c => c,
-                                     r => columnSelector(r),
-                                     (c, columnGroup) => dataSelector(columnGroup))
-                             });
-
-            foreach (var row in rows)
-            {
-                var dataRow = table.NewRow();
-                var items = row.Values.Cast<object>().ToList();
-                // 获取匿名对象的动态类型  
-                var anonymousType = row.Key.GetType();
-
-                // 获取匿名对象的所有属性  
-                var properties = anonymousType.GetProperties();
-
-                for (var i = 0; i < rowName.Count; i++)
-                {
-                    items.Insert(i, properties[i].GetValue(row.Key, null));
-                }
-                dataRow.ItemArray = items.ToArray();
-                table.Rows.Add(dataRow);
-            }
+                  .Select(rowGroup =>
+                  {
+                      var anonymousType = rowGroup.Key.GetType();
+                      var properties = anonymousType.GetProperties();
+                      var row = table.NewRow();
+                      columns.GroupJoin(rowGroup, c => c, r => columnSelector(r),
+                                               (c, columnGroup) =>
+                                               {
 
+                                                   var dic = new Dictionary<string, object>();
+                                                   if (c != null)
+                                                       dic[c.ToString()] = dataSelector(columnGroup);
+                                                   return dic;
+                                               })
+                            .SelectMany(x => x)
+                            .Select(x => row[x.Key] = x.Value)
+                            .SelectMany(x => properties, (x, y) => row[y.Name] = y.GetValue(rowGroup.Key, null))
+                            .ToArray();
+                      table.Rows.Add(row);
+                      return row;
+                  }
+                  ).ToList();
             return table;
         }
 
-        public static List<dynamic> ToPivotList<T, TColumn, TRow, TData>(
-                                                                        this IEnumerable<T> source,
-                                                                        Func<T, TColumn> columnSelector,
-                                                                        Expression<Func<T, TRow>> rowSelector,
-                                                                        Func<IEnumerable<T>, TData> dataSelector)
+        public static IEnumerable<dynamic> ToPivotList<T, TColumn, TRow, TData>(
+            this IEnumerable<T> source,
+            Func<T, TColumn> columnSelector,
+            Expression<Func<T, TRow>> rowSelector,
+            Func<IEnumerable<T>, TData> dataSelector)
         {
 
-            var arr = new List<dynamic>();
-            var cols = new List<string>();
             var rowName = new List<string>();
             if (rowSelector.Body is MemberExpression)
                 rowName.Add(((MemberExpression)rowSelector.Body).Member.Name);
@@ -82,47 +72,27 @@ namespace SqlSugar
 
             var columns = source.Select(columnSelector).Distinct();
 
-            cols = rowName.Concat(columns.Select(x => x?.ToString())).ToList();
-
             var rows = source.GroupBy(rowSelector.Compile())
-                             .Select(rowGroup => new
-                             {
-                                 Key = rowGroup.Key,
-                                 Values = columns.GroupJoin(
-                                     rowGroup,
-                                     c => c,
-                                     r => columnSelector(r),
-                                     (c, columnGroup) => dataSelector(columnGroup))
-                             });
-
-            foreach (var row in rows)
-            {
-                var items = row.Values.Cast<object>().ToList();
-
-                // 获取匿名对象的动态类型  
-                var anonymousType = row.Key.GetType();
-
-                // 获取匿名对象的所有属性  
-                var properties = anonymousType.GetProperties();
-
-                for (var i = 0; i < rowName.Count; i++)
+                .Select(rowGroup =>
                 {
-                    items.Insert(i, properties[i].GetValue(row.Key, null));
-                }
-                var obj = GetAnonymousObject(cols, items);
-                arr.Add(obj);
-            }
-            return arr;
-        }
-        private static dynamic GetAnonymousObject(IEnumerable<string> columns, IEnumerable<object> values)
-        {
-            IDictionary<string, object> eo = new ExpandoObject() as IDictionary<string, object>;
-            int i;
-            for (i = 0; i < columns.Count(); i++)
-            {
-                eo.Add(columns.ElementAt<string>(i), values.ElementAt<object>(i));
-            }
-            return eo;
+                    var anonymousType = rowGroup.Key.GetType();
+                    var properties = anonymousType.GetProperties();
+                    IDictionary<string, object> row = new ExpandoObject();
+                    columns.GroupJoin(rowGroup, c => c, r => columnSelector(r),
+                                            (c, columnGroup) =>
+                                            {
+                                                IDictionary<string, object> dic = new ExpandoObject();
+                                                if (c != null)
+                                                    dic[c.ToString()] = dataSelector(columnGroup);
+                                                return dic;
+                                            })
+                         .SelectMany(x => x)
+                         .Select(x => row[x.Key] = x.Value)
+                         .SelectMany(x => properties, (x, y) => row[y.Name] = y.GetValue(rowGroup.Key, null))
+                         .ToList();
+                    return row;
+                });
+            return rows;
         }
     }
 }