سلام
اینو تست کن :
dim f as new frmgaransend
str = "select Itemtype as 'نوع کالا',ItemBrand as 'مارک کالا',ItemModel as 'مدل قطعه',ItemSerial as 'سريال',ItemProblem as 'مشکل',ItemEquipments as 'توضيحات',CstmrName as 'نام مشتري' from Itemgaran inner join item on itemgaran.itemid=item.itemid inner join garanfact on item.GaranfactID=garanfact.GaranfactID inner join cstmr on itemgaran.cstmrcode=cstmr.cstmrcode where GaranName='" + Trim(s) + "'"
da = New SqlDataAdapter(str, con)
da.Fill(ds)
f.DataGridView1.DataSource = ds
DataGridView1.DataMember = "Itemgaran"
f.ShowDialog()
موفق باشید