vb.net - Delete row from DataGridView via button on the row -

how can delete datagridview row via button on row?

screenshot: http://i.imgur.com/8342mkt.png

when user clicks '삭제' button on row, want delete row.

i tried this:

for each row datagridviewrow in datagridview1.selectedrows   datagridview1.rows.remove(row) next 

but although worked button outside datagridview, doesn't work button in datagridview.

how can make work button in datagridview?

option strict on option explicit on     public class form1   private sub form1_load(sender object, e eventargs) handles mybase.load     integer = 0 5       datagridview1.rows.add(i.tostring, i.tostring, i.tostring, "삭제")     next   end sub    private sub datagridview1_cellcontentclick(sender object, e datagridviewcelleventargs) handles datagridview1.cellcontentclick     if e.columnindex = 3       datagridview1.rows.removeat(e.rowindex)     end if   end sub end class