Adding new record in a related table in database

Question

I want to add new records to an related table. I got three tables: enter image description here

I want to add new technical_skill_value to that table. This is my code right now:

        using (var db = new KnowItCvdbEntities())
        {
            var dbSkill = new TECHNICAL_SKILLS_VALUES
            {
                technical_skill_value_id = new Random().Next(),
                skill_name = TextBoxTechSkill.Text,
                skill_type = DropDownListTechSkill.SelectedItem.Text
            };

            //I want to add the new skill to my TECHNICAL_SKILLS_VALUE table. But I really don't get it how to make it.     
            db.SaveChanges();
        }

@DavidJashi, How to add the new skill to that specific table. db.TECHNICAL_SKILLS_VALUES doesn't give me an ADD function — krisal, Jun 03 '13 at 09:43
@DavidJashi, And i wrote my question in the comented code, did u even read whole question? — krisal, Jun 03 '13 at 09:44
Well, this is not quite how we ask questions here, when we want to get an answer. — David Jashi, Jun 03 '13 at 09:45
@DavidJashi, My bad then, but back to the topic. How do i save the values? As i said, db.TECHNICAL_SKILLS_VALUES doesn't give me an add function — krisal, Jun 03 '13 at 09:46

sarwar026 · Accepted Answer · 2013-06-03T09:50:40.227

0

Add the following line before db.SaveChanges();

db.TECHNICAL_SKILLS_VALUES.Add(dbSkill);

OR

db.AddToTECHNICAL_SKILLS_VALUES(dbSkill);

edited Jun 03 '13 at 09:50

answered Jun 03 '13 at 09:44

sarwar026

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db.TECHNICAL_SKILLS_VALUES doesn't give me an add function :( – krisal Jun 03 '13 at 09:47
I've added another option. But both option usually available to use! – sarwar026 Jun 03 '13 at 09:51
if none of the options works for you, then you have some other problem in initiating db, i guess – sarwar026 Jun 03 '13 at 09:53
The second option worked, didn't even notice that there were an AddToTECHNICAL_SKILLS_VALUES function. Thanks! – krisal Jun 03 '13 at 09:57

score 0 · Answer 2 · edited May 23 '17 at 11:53

I suspect there is an issue surrounding your naming... e.g. an entity for people would be named Person, the entity set would be called Persons. Yet in your code you create a new entity set and not a new entity (according to naming).

Notice the pluralisation... your actually creating an entity set?

I would expect something more along the lines of:

        TECHNICAL_SKILLS_VALUE dbSkill = new TECHNICAL_SKILLS_VALUE
        {
            technical_skill_value_id = new Random().Next(),
            skill_name = TextBoxTechSkill.Text,
            skill_type = DropDownListTechSkill.SelectedItem.Text
        };

        db.AddToTECHNICAL_SKILLS_VALUES(dbSkill) 
        db.SaveChanges();

Try:

db.AddToTECHNICAL_SKILLS_VALUES(dbSkill);
db.SaveChanges();

Try to attach the object:

db.TECHNICAL_SKILLS_VALUES.AddObject(dbSkill);
db.SaveChanges();

read this for reference and examples : clicky link

Hi there. Thanks for the answer, db.AddToTECHNICAL_SKILLS_VALUES(dbSkill); worked fine, but sarvar026 above you provide the answer. Thanks! — krisal, Jun 03 '13 at 10:39

Adding new record in a related table in database

2 Answers2