Basic combat Skills--------SQL Server 2008 cannot save a table change

MS SQL Server 2008 When you are finished building a table, if you want to redesign the table, such as modifying the field length, you will be prompted:
"When a user changes the table structure in SQL Server 2008 Enterprise Manager, you must first delete the original table and then recreate the new table to complete the table changes, and the following prompt will appear if you force the change
: Saving changes is not allowed. Your changes require that the following tables be deleted and recreated. You have changed the label that cannot be recreated or enabled the "Prevent saving changes that require table re-creation" option.
Can I save changes to a table directly?
Open the Microsoft SQL Server Management Studio menu bar tool-〉 option-〉 the left side of the designer (designers)-〉 Table Designer and Database Designer, block save requires heavy
Create a new table change, remove the hook, in case you need to restart Microsoft SQL Server Management Studio

Basic combat Skills--------SQL Server 2008 cannot save a table change