diff --git a/Src/Asp.Net/SqlServerTest/UnitTest/Query/SingleQuery.cs b/Src/Asp.Net/SqlServerTest/UnitTest/Query/SingleQuery.cs
index 7d1c4d65b..c06102a0c 100644
--- a/Src/Asp.Net/SqlServerTest/UnitTest/Query/SingleQuery.cs
+++ b/Src/Asp.Net/SqlServerTest/UnitTest/Query/SingleQuery.cs
@@ -124,6 +124,14 @@ namespace OrmTest.UnitTest
                         new SugarParameter("@Id0",1),
                         new SugarParameter("@Const1",1)
                     }, t13.Key, t13.Value, "single t13 error ");
+
+
+                var t14 = db.Queryable<Student>()
+                    .Where(it => it.Name == "a" && SqlFunc.HasValue(it.Name)).ToSql();
+                base.Check("SELECT [ID],[SchoolId],[Name],[CreateTime] FROM [STudent]  WHERE (( [Name] = @Name0 ) AND ( [Name]<>'' AND [Name] IS NOT NULL ))",
+                   new List<SugarParameter>() {
+                        new SugarParameter("@Name0","a")
+                   }, t14.Key, t14.Value, "single t14 error ");
             }
         }
     }
diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve.cs
index 5fba25a20..fd30e7c6c 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve.cs
@@ -209,7 +209,7 @@ namespace SqlSugar
                 model.Args.AddRange(appendArgs);
             }
             var methodValue = GetMdthodValue(name, model);
-            if (parameter.BaseExpression is BinaryExpression && parameter.OppsiteExpression.Type == UtilConstants.BoolType&&name=="HasValue") {
+            if (parameter.BaseExpression is BinaryExpression && parameter.OppsiteExpression.Type == UtilConstants.BoolType&&name=="HasValue"&&!(parameter.OppsiteExpression is BinaryExpression)) {
                 methodValue = this.Context.DbMehtods.CaseWhen(new List<KeyValuePair<string, string>>() {
                     new KeyValuePair<string, string>("IF",methodValue.ObjToString()),
                     new KeyValuePair<string, string>("Return","1"),
diff --git a/Src/Asp.Net/SqlSugar/Properties/AssemblyInfo.cs b/Src/Asp.Net/SqlSugar/Properties/AssemblyInfo.cs
index 1c2875fa2..971196ddb 100644
--- a/Src/Asp.Net/SqlSugar/Properties/AssemblyInfo.cs
+++ b/Src/Asp.Net/SqlSugar/Properties/AssemblyInfo.cs
@@ -31,5 +31,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("4.6.0.5")]
-[assembly: AssemblyFileVersion("4.6.0.5")]
+[assembly: AssemblyVersion("4.6.0.6")]
+[assembly: AssemblyFileVersion("4.6.0.6")]