ALV with Editable Fields

hi,

i am developing a reort for GR Equipment Creation and using an ALV which has some editable fields.

In that ALV for example i have 5 rows but when i copy data from EXCEL having more than 5 rows and paste those in those editable fields, the number of rows in the ALV is increased.

Is there any process or method by which i can restrict the number of rows in ALV?

Thanx in Advance

Sunil Sharma