Update navigate query

Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs

@@ -295,7 +295,7 @@ namespace SqlSugar
             this.Context.InitMappingInfo(navEntityInfo.Type);
             var navPkColumn = navEntityInfo.Columns.Where(it => it.IsPrimarykey).FirstOrDefault();
             Check.ExceptionEasy(navPkColumn==null&& navObjectNameColumnInfo.Navigat.Name2==null, navEntityInfo.EntityName+ "need primarykey", navEntityInfo.EntityName + " 需要主键");
-            if (navPkColumn==null) 
+            if (navObjectNameColumnInfo.Navigat.Name2.HasValue()) 
             {
                 navPkColumn = navEntityInfo.Columns.Where(it => it.PropertyName== navObjectNameColumnInfo.Navigat.Name2).FirstOrDefault();
             }
@@ -341,7 +341,7 @@ namespace SqlSugar
             //var navType = navObjectNamePropety.PropertyType;
             var listItemPkColumn = listItemEntity.Columns.Where(it => it.IsPrimarykey).FirstOrDefault();
             Check.ExceptionEasy(listItemPkColumn == null&& navObjectNameColumnInfo.Navigat.Name2==null, listItemEntity.EntityName + " not primary key", listItemEntity.EntityName + "没有主键");
-            if (listItemPkColumn == null) 
+            if (navObjectNameColumnInfo.Navigat.Name2.HasValue()) 
             {
                 listItemPkColumn = listItemEntity.Columns.Where(it => it.PropertyName== navObjectNameColumnInfo.Navigat.Name2).FirstOrDefault();
             }

Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/OneToManyNavgateExpression.cs

@@ -168,7 +168,7 @@ namespace SqlSugar
         private MapperSql GetOneToManySql()
         {
             var pkColumn = this.EntityInfo.Columns.FirstOrDefault(it => it.IsPrimarykey == true);
-            if (pkColumn == null && Navigat.Name2 != null) 
+            if (Navigat.Name2.HasValue()) 
             {
                 pkColumn = this.EntityInfo.Columns.FirstOrDefault(it => it.PropertyName== Navigat.Name2);
             }

Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/OneToOneNavgateExpression.cs

@@ -78,7 +78,7 @@ namespace SqlSugar
                     " NavigateType.Dynamic 自定义导航对象不支持在Where(x=>x.自定义.Id==1)等方法中使用"+ this.ProPertyEntity.Type.Name);
             }
             var pk = this.ProPertyEntity.Columns.FirstOrDefault(it => it.IsPrimarykey == true)?.DbColumnName;
-            if (pk == null && Navigat.Name2 != null)
+            if (Navigat.Name2.HasValue())
             {
                 pk = this.ProPertyEntity.Columns.FirstOrDefault(it => it.PropertyName == Navigat.Name2)?.DbColumnName;
             }