diff --git a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Common/MethodCallExpressionModel.cs b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Common/MethodCallExpressionModel.cs
index 093b4d39a..7f544439e 100644
--- a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Common/MethodCallExpressionModel.cs
+++ b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Common/MethodCallExpressionModel.cs
@@ -11,6 +11,7 @@ namespace SqlSugar
         public List<MethodCallExpressionArgs> Args { get; set; }
         public string Name { get; set; }
         public dynamic Data { get; set; }
+        public object DataObject { get; set; }
         public Expression Expression { get; set; }
         public Expression BaseExpression { get; set; }
         public List<SugarParameter> Parameters { get;  set; }
diff --git a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs
index c7f853524..a4bb01c0d 100644
--- a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs
+++ b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs
@@ -1129,7 +1129,7 @@ namespace SqlSugar
                                 {
                                     if (model.Conext?.SugarContext?.Context?.CurrentConnectionConfig?.MoreSettings?.DisableNvarchar != true)
                                     {
-                                        if (columnInfo.SqlParameterDbType is System.Data.DbType type && type == System.Data.DbType.AnsiString)
+                                        if (model.DataObject is DbColumnInfo dc&& dc.SqlParameterDbType is System.Data.DbType type && type == System.Data.DbType.AnsiString)
                                         {
 
                                         }
diff --git a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve_Helper.cs b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve_Helper.cs
index 15ca4e865..547a8879b 100644
--- a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve_Helper.cs
+++ b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve_Helper.cs
@@ -308,6 +308,17 @@ namespace SqlSugar
                         ConvetColumnFunc = this.Context.GetTranslationColumnName
                     }
                 });
+                if (lamExp.Body is MethodCallExpression callExpression)
+                {
+                    var callObject = callExpression.Object;
+
+                    if (callObject is MemberExpression memberExpression && memberExpression?.Expression is ParameterExpression parameterExpression)
+                    {
+                        var entity = this.Context.SugarContext.Context.EntityMaintenance.GetEntityInfo(parameterExpression.Type);
+                        var columnInfo = entity.Columns.FirstOrDefault(it => it.PropertyName == memberExpression.Member.Name);
+                        model.DataObject = columnInfo;
+                    }
+                }
                 if (this.Context.IsSingle && this.Context.SingleTableNameSubqueryShortName == null)
                 {
                     ParameterExpressionVisitor visitor = new ParameterExpressionVisitor();
diff --git a/Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec b/Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec
index daec1d6d8..d2b49d574 100644
--- a/Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec
+++ b/Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec
@@ -2,7 +2,7 @@
 <package >
   <metadata>
     <id>SqlSugarCore</id>
-    <version>5.1.4.194-preview28</version>
+    <version>5.1.4.194-preview31</version>
     <authors>sunkaixuan</authors>
     <owners>果糖大数据科技</owners>
     <licenseUrl>http://www.apache.org/licenses/LICENSE-2.0.html</licenseUrl>