hierarchy

StackOverFlow in the implementation of the Dependency Inversion Principle for cross-refenced classes

做~自己de王妃 提交于 2020-06-01 07:03:40
问题 The Situation: I have three classes: Society, Father and Son. The Society has a list of Fathers. Each Father has one son. It is necessary in this application that each Father knows who his Son is and vice-versa each Son knows who his Father is. I have used direct cross referencing by assigning the Father as a property of the Son, and the Son as a property of the Father class, as below: public class Society : ISociety { public List<IFather> Fathers {get; set;} } public class Father : IFather {

Make multiple dependent / cascading selection components in JSF

自闭症网瘾萝莉.ら 提交于 2020-05-24 07:06:08
问题 I am trying to make 4 dependent / cascading selection components. In this question, the selection component happens to be a <h:selectOneMenu> , but this is of course applicable on any other kind of selection component, such as <h:selectManyCheckbox> , <p:selectCheckboxMenu> , etc. When the user chooses an item from the first menu, the second menu will show dependent data and when the user chooses item from the second one , the third one will show dependent data and so on. The user will see

Make multiple dependent / cascading selection components in JSF

99封情书 提交于 2020-05-24 07:06:06
问题 I am trying to make 4 dependent / cascading selection components. In this question, the selection component happens to be a <h:selectOneMenu> , but this is of course applicable on any other kind of selection component, such as <h:selectManyCheckbox> , <p:selectCheckboxMenu> , etc. When the user chooses an item from the first menu, the second menu will show dependent data and when the user chooses item from the second one , the third one will show dependent data and so on. The user will see

I want to get Hierarchy from an Array - Angular 8

江枫思渺然 提交于 2020-04-18 05:39:17
问题 I have an Array and One String Value. I want to get the Hierarchy of the String into an Array. For example, I have a string value "Casuals". "Casuals" value is inside the "Shirts" object. "Shirts" value is inside the "Men" object. And "Men" value is inside the "Default Category" object. So, this is how the logic should be work. Here is my Sample Array: { "id": 2, "name": "Default Category", "children_data": [ { "id": 3, "name": "Men", "children_data": [ { "id": 11, "name": "T-Shirts",

Getting Parent Child hierarchy

冷暖自知 提交于 2020-03-04 18:56:13
问题 I'm trying to get ancestors of a child (dog) upto Level 5. For Example in attached picture I'll be sending "Spencer di Casa Massarelli" and in result want to have associated parents (both father and mother). In my DB structure I've used father_id and mother_id. DB & version: 10.4.11-MariaDB Table Script: CREATE TABLE `dogs` ( `dog_id` int(11) NOT NULL, `name` varchar(255) DEFAULT NULL, `father_id` int(11) DEFAULT NULL, `moter_id` int(11) DEFAULT NULL, PRIMARY KEY (`dog_id`) ) ENGINE=InnoDB

serialise a c# datatable with a hierarchy as json heirachy

萝らか妹 提交于 2020-02-25 13:52:15
问题 I have a dataTable with the following data in it: Parent Child Dan Heidi Dan Lauren Alan Dan Daphne Alan Alan Lorna Alan Tim I want to output the following json: [ { 'name': 'Daphne', 'children': [ { 'name': 'Alan', 'children': [ { 'name': 'Dan', 'children': [ { 'name': 'Heidi' }, { 'name': 'Lauren' } ] }, { 'name': 'Tim' }, { 'name': 'Lorna' } ] } ] } ] I've used the json.net serialiser to serialse one level in the hierarchy, I would have thought this was a common problem. Is there a simple