Updating GridPanel Store

[VADIM]

I had a hard time figuring out how to update store in 7.2 in controller.
Posting my solution. Hopefully it will save time for someone.

List<Company> GetCompanies()
        {
            return new List<Company>
            {
                new Company {id = 1, name = "3m Co" },
                new Company {id = 2, name = "Alcoa Inc" },
                new Company {id = 3, name = "Altria Group Inc" },
                new Company {id = 4, name = "American Express Company" },
            };
        }

public void OnGet()
        {
            this.GridData ??= GetCompanies().ToList<object>();
        }

public IActionResult OnPostButtonSave_Click(int id, string name, string window)
        {
            List<Company> companies = GetCompanies();
            companies.FirstOrDefault(c => c.id == id).name = name;

            this.GetCmp<Window>(window).Close();
            var gp = this.GetCmp<GridPanel>("gpOne");
            gp.Store = new Store
            {
                Data = companies.ToList<object>(),
                Fields = new List<DataField>
                {
                    new NumberDataField { Name = "id" },
                    new DataField{ Name = "name" },
                }
            };
            return this.Direct();
        }