entity framework 6 update code example

Example 1: 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();
}

Example 2: entity save example in c# model first

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