How to update all the records of a table in an entity framework?

Question

I want to update all the records of the table and change the one column value but it is not working for me

What I tried:

public static void UpdateSellerAutoApprovalSettings(bool isSellerAutoApproved)
        {
            using (var context = GetDbContext())
            {
                context.SiteGroups
                    .AddOrUpdate(x => x.IsSellerAutoApproved, 
                    new SiteGroup { IsSellerAutoApproved = isSellerAutoApproved });
                context.SaveChanges();
            }
        }

Answer 1

只需使用ForEach扩展方法：

context.SiteGroups.ForEach(e => e.IsSellerAutoApproved = isSellerAutoApproved);

Answer 2

please check the below approach.

you can use where in between SiteGroups and ForEach if you need conditional Update

public static void UpdateSellerAutoApprovalSettings(bool isSellerAutoApproved)
{
    using (var context = GetDbContext())
    {
        context.SiteGroups
               .ForEach( x => x.IsSellerAutoApproved = isSellerAutoApproved )
        context.SaveChanges();
    }
}

Answer 3

You can use EntityFrmaework.Plus library like below

context.SiteGroups
         .Update(x => new SiteGroup { IsSellerAutoApproved = isSellerAutoApproved });

This will generate a SQL statement and you will not load all records into a application memory.