def UpdateData():
if (len(STUDENT_ID.get()) != 0):
BackEnd.deleteRec(sd[0])
if (len(STUDENT_ID.get()) != 0):
BackEnd.addstdRec(STUDENT_ID.get(), FIRST_NAME.get(),
LAST_NAME.get(), DATE_OF_BIRTH.get(),
AGE.get(), GENDER.get(), ADDRESS.get(),
MOBILE_NO.get())
studentlist.delete(0, END)
studentlist.insert(
END(STUDENT_ID.get(), FIRST_NAME.get(), LAST_NAME.get(),
DATE_OF_BIRTH.get(), AGE.get(), GENDER.get(),
ADDRESS.get(), MOBILE_NO.get()))
def DeleteData():
if (len(STUDENT_ID.get()) != 0):
BackEnd.deleteRec(sd[0])
ClearData()
DisplayData()