private void Button_Click(object sender, RoutedEventArgs e) { db = new MahasiswaContext("isostore:/Mahasiswa.sdf"); if (!db.DatabaseExists()) { db.CreateDatabase(); } Mahasiswa _mhs = new Mahasiswa(); _mhs.nama_mahasiswa = txtNama.Text; _mhs.alamat_mahasiswa = txtAlamat.Text; _mhs.handphone_mahasiswa = txtHandphone.Text; db.mahasiswas.InsertOnSubmit(_mhs); db.SubmitChanges(); MessageBox.Show("Data Telah Tersimpan"); txtAlamat.Text = ""; txtHandphone.Text = ""; txtNama.Text = ""; }