Changes not saving to database using linq to sql

Question

0.00/5 (No votes)

See more:

Hi,

This is my code :

C#

public List<notificationdata> ReadNotification(int memberId, int NotificationId)
       {
           using (KiwiDbContext context=new KiwiDbContext(_ConnectionString))
           {
               NotificationData nd = new NotificationData();
               nd.IsRead = true;

               var query = (from n in context.Notifications where n.MemberID == memberId && n.NotificationID == NotificationId && n.IsRead == false select new NotificationData { NotificationID = n.NotificationID, Message = n.Message, CreatedTime = n.NotificationTime, IsRead = nd.IsRead });
               return query.ToList();


               context.SaveChanges();
           }

Execution is done but not saving to database table.

Please give me correct code for that.

Thanks

Posted 4-Oct-15 18:40pm

Member 11559509

Updated 4-Oct-15 20:01pm

Thanks7872

v2

Add a Solution

Comments

Krunal Rohit 5-Oct-15 2:14am

You're reading from the DB, why do you need to save it ?
-KR

Sinisa Hajnal 5-Oct-15 2:41am

Did you check the result? Do you even get anything in query.ToList()?

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

PANKAJMAURYA · Answer 1 · 2015-10-04T22:37:00

As your posted code it is just reading the data from database not saving the data to database. To Save data you have to code like

public void AddNotification(string msg, bool readable)
       {
           using (KiwiDbContext context=new KiwiDbContext(_ConnectionString))
           {
               NotificationData nd = new NotificationData();
               nd.IsRead = readable; 
               nd.Message = msg;
               nd.CreatedTime = DateTime.Now;
               context.Notifications.Add(nd);              
               context.SubmitChanges();
           }
        }