-

OrmTest/ExpressionTest/Method.cs

@@ -24,6 +24,7 @@ namespace OrmTest.ExpressionTest
                 StringIsNullOrEmpty();
                 StringIsNullOrEmpty2();
                 StringIsNullOrEmpty3();
+                StringIsNullOrEmpty4();
             }
             base.End("Method Test");
         }
@@ -64,6 +65,20 @@ namespace OrmTest.ExpressionTest
                 new SugarParameter("@Id0",2)
             }, "StringIsNullOrEmpty3");
         }
+
+        private void StringIsNullOrEmpty4()
+        {
+            WhereConst.name = "xx";
+            Expression<Func<Student, bool>> exp = it => 2 == it.Id || NBORM.IsNullOrEmpty(WhereConst.name); ;
+            SqlServerExpressionContext expContext = new SqlServerExpressionContext(exp, ResolveExpressType.WhereSingle);
+            expContext.Resolve();
+            var value = expContext.Result.GetString();
+            var pars = expContext.Parameters;
+            base.Check(value, pars, "(( @Id0  = Id )  OR  ( @MethodCost1='' OR @MethodCost1 IS NULL ))", new List<SugarParameter>() {
+                new SugarParameter("@MethodCost1","xx"),
+                new SugarParameter("@Id0",2)
+            }, "StringIsNullOrEmpty4");
+        }
     }
 }
 

SqlSugar/ExpressionsToSql/ResolveItems/MemberNoExpressionResolve.cs

@@ -15,6 +15,8 @@ namespace SqlSugar
             object value = null;
             var isField = expression.Member is System.Reflection.FieldInfo;
             var isProperty = expression.Member is System.Reflection.PropertyInfo;
+            var baseParameter = parameter.BaseParameter;
+            var isSetTempData = baseParameter.CommonTempData.IsValuable() && baseParameter.CommonTempData.Equals(CommonTempDataType.ChildNodeSet);
             if (isField)
             {
                 value = ExpressionTool.GetFiledValue(expression);
@@ -26,10 +28,15 @@ namespace SqlSugar
             switch (base.Context.ResolveType)
             {
                 case ResolveExpressType.WhereSingle:
-                    AppendParameter(parameter, isLeft, value);
-                    break;
                 case ResolveExpressType.WhereMultiple:
+                    if (isSetTempData)
+                    {
+                        baseParameter.CommonTempData = value;
+                    }
+                    else
+                    {
                         AppendParameter(parameter, isLeft, value);
+                    }
                     break;
                 case ResolveExpressType.SelectSingle:
                     break;

SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve.cs

@@ -23,6 +23,7 @@ namespace SqlSugar
                 case ResolveExpressType.WhereMultiple:
                     foreach (var item in args)
                     {
+                        parameter.CommonTempData = CommonTempDataType.ChildNodeSet;
                         base.Expression = item;
                         base.Start();
                         var methodCallExpressionArgs = new MethodCallExpressionArgs()