protected override void Up(MigrationBuilder migrationBuilder)
{
migrationBuilder.AddColumn(
name: "ResponsiblePerson",
table: "AppYWProducts",
nullable: true);
migrationBuilder.AddColumn(
name: "CheckLimited",
table: "AppYWProducts",
nullable: false);
}

    protected override void Down(MigrationBuilder migrationBuilder)  
    {  
        migrationBuilder.DropColumn(  
            name: "ResponsiblePerson",  
            table: "AppYWProducts");  
        migrationBuilder.DropColumn(  
          name: "CheckLimited",  
          table: "AppYWProducts");  
    }