- 优化 Select<object>().AsType(..) Dto 映射查询；

Author: 2881099

Examples/base_entity/Program.cs

@@ -332,6 +332,19 @@ class StringNulable
             [Column(StringLength = -1, IsNullable = false)]
             public string code2 { get; set; }
         }
+        public class CCC
+        {
+            public int bb { get; set; }
+            public int aa { get; set; }
+        }
+        public class BBB
+        {
+            public int bb { get; set; }
+        }
+        public class AAA
+        {
+            public int aa { get; set; }
+        }
 
 
         static void Main(string[] args)
@@ -389,6 +402,9 @@ static void Main(string[] args)
             BaseEntity.Initialization(fsql, () => _asyncUow.Value);
             #endregion
 
+            var sqlskdfj = fsql.Select<object>().AsType(typeof(BBB)).ToSql(a => new CCC());
+
+
             var dbpars = new List<DbParameter>();
 
             var a1id1 = Guid.NewGuid();

FreeSql.DbContext/FreeSql.DbContext.xml

@@ -356,7 +356,9 @@ void LocalSetFieldAlias(ref int localIndex, bool isdiymemexp)
                                 };
                                 parent.Childs.Add(child);
                                 if (dtTb.Parameter != null)
-                                    ReadAnonymousField(_tables, _tableRule, field, child, ref index, Expression.Property(dtTb.Parameter, dtTb.Table.Properties[trydtocol.CsName]), select, diymemexp, whereGlobalFilter, findIncludeMany, findSubSelectMany, isAllDtoMap);
+                                    ReadAnonymousField(_tables, _tableRule, field, child, ref index, Expression.Property(
+                                        dtTb.Parameter.Type == dtTb.Table.Type ? (Expression)dtTb.Parameter : Expression.TypeAs(dtTb.Parameter, dtTb.Table.Type),
+                                        dtTb.Table.Properties[trydtocol.CsName]), select, diymemexp, whereGlobalFilter, findIncludeMany, findSubSelectMany, isAllDtoMap);
                                 else
                                 {
                                     child.DbField = $"{dtTb.Alias}.{_common.QuoteSqlName(trydtocol.Attribute.Name)}";
@@ -475,7 +477,9 @@ void LocalSetFieldAlias(ref int localIndex, bool isdiymemexp)
                                 };
                                 parent.Childs.Add(child);
                                 if (dtTb.Parameter != null)
-                                    ReadAnonymousField(_tables, _tableRule, field, child, ref index, Expression.Property(dtTb.Parameter, dtTb.Table.Properties[trydtocol.CsName]), select, diymemexp, whereGlobalFilter, findIncludeMany, findSubSelectMany, isAllDtoMap);
+                                    ReadAnonymousField(_tables, _tableRule, field, child, ref index, Expression.Property(
+                                        dtTb.Parameter.Type == dtTb.Table.Type ? (Expression)dtTb.Parameter : Expression.TypeAs(dtTb.Parameter, dtTb.Table.Type), 
+                                        dtTb.Table.Properties[trydtocol.CsName]), select, diymemexp, whereGlobalFilter, findIncludeMany, findSubSelectMany, isAllDtoMap);
                                 else
                                 {
                                     child.DbField = _common.RereadColumn(trydtocol, $"{dtTb.Alias}.{_common.QuoteSqlName(trydtocol.Attribute.Name)}");