How to Update record in sqlite by EF6 C#

Question

5.00/5 (1 vote)

See more:

I am new to sqlite entity framework 6.
I am trying to update a record in table but it not saving the changes in the database.
I am using the following code to Update Record.

C#

public int saveBill(general_bills cat)
        {

            using (alldbEntities db = new alldbEntities())
            {
                if (cat.ID > 0)
                {
                    //db.Attach(cat);
                    //db.ApplyPropertyChanges("general_bills", cat);
                    //db.Attach(cat);

                    //db.AddTogeneral_bills(cat);
                    //db.Attach(cat);
                    //db.AcceptAllChanges();
                    db.AttachTo("general_bills", cat);
                    //db.Entry(cat).State = EntityState.Modified;
                    db.SaveChanges(true);
                }
                else
                {
                    db.AddTogeneral_bills(cat);
                    db.SaveChanges(true);

                }
                return (int)cat.ID;
            }
        }

Posted 26-Feb-14 1:00am

Harsh Gupta

Add a Solution

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)

Sampath Lokuge · Accepted Answer · 2014-02-26T02:11:00

Please try is as below.

Note : I hope your cat entity collection is "AddTogeneral_bills"

C#

public int saveBill(general_bills cat)
        {

            using (alldbEntities db = new alldbEntities())
            {
                if (cat.ID > 0)
                {

            var catObj = (from c in db.AddTogeneral_bills
                                    where c.ID=cat.ID
                                    select c).FirstOrDefault();


                   catObj.pro1= cat.pro1;
                   catObj.pro2= cat.pro2;
                   //put your properties

                   db.SaveChanges();
                }
                else
                {
                    db.AddTogeneral_bills.Add(cat);
                    db.SaveChanges();

                }
                return (int)cat.ID;
            }
        }