SQL Server :: XML With PrimaryKey Values To Delete Rows In Database Table At A Time?

I'm having a gridview in my aspx page with checkbox, User can select one or more than one record(s) at a time and clicks on delete button, Then i'm constructing an object of my DTO and adding all the checked row's Primary Key (DataKeyNames - GUID's in case) to a serializable class and generating an XML and sending it as parameter to the Stored Procedure.

My Doubt is, can i bulk delete all the rows from database table those are present in my XML document??

If it works, I can do bulk update with XML only, i already did bulk insertion by generating an XML..

My Another Question is, Will it affect the performance? Each time when i construct an DTO object and adding it to the Generic List??

WHich one is better, I mean ObjectDataSource or SQLDataSource or my XML method?

My XML will be like this

<root>
<Customer>
<CustomerID>GUID1</CustomerID>
<CustomerID>GUID2</CustomerID>
<CustomerID>GUID3</CustomerID>.....