diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/EntityMaintenance/EntityMaintenance.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/EntityMaintenance/EntityMaintenance.cs
index 8e53c3ed2..62807571c 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/EntityMaintenance/EntityMaintenance.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/EntityMaintenance/EntityMaintenance.cs
@@ -319,6 +319,12 @@ namespace SqlSugar
                 {
                     this.Context.CurrentConnectionConfig.ConfigureExternalServices.EntityService(property, column);
                 }
+                if (column.PropertyInfo.DeclaringType != null
+                    && column.PropertyInfo.DeclaringType != result.Type
+                    &&result.Columns.Any(x=>x.PropertyName==column.PropertyName)) 
+                {
+                    continue;
+                }
                 result.Columns.Add(column);
             }
         }
diff --git a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/BinaryExpressionResolve.cs b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/BinaryExpressionResolve.cs
index 27180dd7a..aa0cbee0d 100644
--- a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/BinaryExpressionResolve.cs
+++ b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/BinaryExpressionResolve.cs
@@ -37,7 +37,7 @@ namespace SqlSugar
                 }
                 else
                 {
-                    InSubGroupBy(expression);
+                    InSubGroupBy(expression, operatorValue=="<>"?"NOT":"");
                 }
                 return;
             }
@@ -123,7 +123,7 @@ namespace SqlSugar
             }
             base.Context.Result.Append($" {leftSql} in ({rightSql}) ");
         }
-        private void InSubGroupBy(BinaryExpression expression)
+        private void InSubGroupBy(BinaryExpression expression,string not)
         {
             var leftSql = GetNewExpressionValue(expression.Left);
             var rightExpression = expression.Right as MethodCallExpression;
@@ -139,12 +139,12 @@ namespace SqlSugar
                 var p = (leftExp as MemberExpression);
                 this.Context.SingleTableNameSubqueryShortName=p.Expression.ToString();
             }
-            base.Context.Result.Append($" {leftSql} in ({rightSql}) ");
+            base.Context.Result.Append($" {leftSql} {not} in ({rightSql}) ");
         }
 
         private bool IsGroupSubquery(Expression rightExpression, string operatorValue)
         {
-            if (operatorValue != "=")
+            if (operatorValue != "="&& operatorValue != "<>")
             {
                 return false;
             }
diff --git a/Src/Asp.NetCore2/SqlSugar/Utilities/PropertyCallAdapterProvider.cs b/Src/Asp.NetCore2/SqlSugar/Utilities/PropertyCallAdapterProvider.cs
index fd2060d35..9d57dd8e2 100644
--- a/Src/Asp.NetCore2/SqlSugar/Utilities/PropertyCallAdapterProvider.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Utilities/PropertyCallAdapterProvider.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Linq.Expressions;
 using System.Reflection;
 namespace SqlSugar
@@ -33,9 +34,19 @@ namespace SqlSugar
             IPropertyCallAdapter<TThis> instance;
             if (!_instances.TryGetValue(forPropertyName, out instance))
             {
-                var property = typeof(TThis).GetProperty(
-                    forPropertyName,
-                    BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
+                PropertyInfo property = null;
+                var propertys = typeof(TThis).GetProperties(
+                 
+                    BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic)
+                    .Where(it=>it.Name== forPropertyName);
+                if (propertys.Count() == 1)
+                {
+                    property = propertys.First();
+                }
+                else 
+                {
+                    property = propertys.First();
+                }
 
                 MethodInfo getMethod;
                 Delegate getterInvocation = null;