diff --git a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs
index 7d48c21b3..9a042ac67 100644
--- a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs
+++ b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve.cs
@@ -486,6 +486,31 @@ namespace SqlSugar
                           ));
                     }
                 }
+                else if (!this.Context.IsJoin && (item is MemberInitExpression || item is NewExpression))
+                {
+                    List<NewExpressionInfo> newExpressionInfos = new List<NewExpressionInfo>();
+                    if (item is MemberInitExpression)
+                    {
+                        newExpressionInfos = ExpressionTool.GetNewexpressionInfos(item, this.Context);
+                    }
+                    else
+                    {
+                        newExpressionInfos = ExpressionTool.GetNewDynamicexpressionInfos(item, this.Context);
+                    }
+                    mappingKeys = new Dictionary<string, string>(); 
+                    foreach (NewExpressionInfo newExpressionInfo in newExpressionInfos)
+                    {
+                        //var property=item.Type.GetProperties().Where(it => it.Name == newExpressionInfo.l).First();
+                        //asName = GetAsName(item, newExpressionInfo.ShortName, property);
+                        mappingKeys.Add("Single_"+newExpressionInfo.LeftNameName,asName + "." + newExpressionInfo.RightDbName );
+                        CallContextThread<Dictionary<string, string>>.SetData("Exp_Select_Mapping_Key", mappingKeys);
+                        CallContextAsync<Dictionary<string, string>>.SetData("Exp_Select_Mapping_Key", mappingKeys);
+                        parameter.Context.Result.Append(this.Context.GetAsString(
+                               this.Context.SqlTranslationLeft + asName + "." + newExpressionInfo.RightDbName + this.Context.SqlTranslationRight,
+                                newExpressionInfo.RightDbName
+                          ));
+                    }
+                }
                 else
                 {
                     asName = GetAsNameResolveAnObject(parameter, item, asName, isSameType);
diff --git a/Src/Asp.NetCore2/SqlSugar/Infrastructure/ContextMethods.cs b/Src/Asp.NetCore2/SqlSugar/Infrastructure/ContextMethods.cs
index ebb6abf68..6497ee24a 100644
--- a/Src/Asp.NetCore2/SqlSugar/Infrastructure/ContextMethods.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Infrastructure/ContextMethods.cs
@@ -168,7 +168,10 @@ namespace SqlSugar
                 }
                 catch
                 {
-                    result.Add(name, null);
+                    if (!result.ContainsKey(name))
+                    {
+                        result.Add(name, null);
+                    }
                 }
             }
             return result;
@@ -447,6 +450,11 @@ namespace SqlSugar
                         key = mappingKeys[item.Name]+"."+typeName + "." + name;
                         info = readerValues.Select(it => it.Key).FirstOrDefault(it => it.ToLower() == key.ToLower());
                     }
+                    else if (mappingKeys != null && mappingKeys.ContainsKey("Single_" + name))
+                    {
+                        key =mappingKeys["Single_" + name];
+                        info = readerValues.Select(it => it.Key).FirstOrDefault(it => it.ToLower() == key.ToLower());
+                    }
                     if (info == null&&oldInfo!=null) 
                     {
                         info = oldInfo;