EF migration for changing data type of columns
I have a Model in my project as below: public class Model { public int Id { get; set; } public long FromNo { get; set; } public long ToNo { get; set; } public string Content { get; set; } public long TicketNo { get; set; } } The migration is as below public override void Down() { AlterColumn("dbo.Received", "FromNo", c => c.Long(nullable: false)); AlterColumn("dbo.Received", "ToNo", c => c.Long(nullable: false)); AlterColumn("dbo.Received", "TicketNo", c => c.Long(nullable: false)); } public override void Up() { AlterColumn("dbo.Received", "FromNo", c => c.String()); AlterColumn("dbo.Received"