using entity framework to save to database code example

Example 1: 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();
}

Example 2: 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();
}