Answers for "entity save example in c# model first"

entity save example in c# model first

using (var context = new BloggingContext())
{
    // seeding database
    context.Blogs.Add(new Blog { Url = "http://example.com/blog" });
    context.Blogs.Add(new Blog { Url = "http://example.com/another_blog" });
    context.SaveChanges();
}

using (var context = new BloggingContext())
{
    // add
    context.Blogs.Add(new Blog { Url = "http://example.com/blog_one" });
    context.Blogs.Add(new Blog { Url = "http://example.com/blog_two" });

    // update
    var firstBlog = context.Blogs.First();
    firstBlog.Url = "";

    // remove
    var lastBlog = context.Blogs.Last();
    context.Blogs.Remove(lastBlog);

    context.SaveChanges();
}

Posted by: Guest on October-13-2020

Source

entity save example in c# model first

// disconnected existing entity 
var student = new Student(){ StudentId = 1, StudentName = "Steve" };

using (var context = new SchoolDBEntities())
{
    context.Entry(student).State = student.StudentId == 0? EntityState.Added : EntityState.Modified;

    context.SaveChanges();
}

Posted by: Guest on October-13-2020

Source

entity save example in c# model first

// disconnected new entity 
var student = new Student(){ StudentName = "Bill" };

using (var context = new SchoolDBEntities())
{
    context.Entry(student).State = student.StudentId == 0? EntityState.Added : EntityState.Modified;

    context.SaveChanges();
}

Posted by: Guest on October-13-2020

Source

entity save example in c# model first

using (var context = new BloggingContext())
{
    var blog = context.Blogs.First();
    context.Blogs.Remove(blog);
    context.SaveChanges();
}

Posted by: Guest on October-13-2020

Source

entity save example in c# model first

exec sp_executesql N'INSERT [dbo].[Student]([StudentName], [StandardId])
VALUES (@0, NULL)
SELECT [StudentID] FROM [dbo].[Student]
WHERE @@ROWCOUNT > 0 AND [StudentID] = scope_identity(),@0='Bill'

Posted by: Guest on October-13-2020

Source

entity save example in c# model first

using (var context = new BloggingContext())
{
    var blog = context.Blogs.First();
    blog.Url = "http://example.com/blog";
    context.SaveChanges();
}

Posted by: Guest on October-13-2020

Source

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