private async void BtnUpdate_Click(object sender, RoutedEventArgs e) { if (string.IsNullOrEmpty(txtEmail.Text) && string.IsNullOrEmpty(txtLastName.Text) && string.IsNullOrEmpty(txtFirstName.Text) && string.IsNullOrEmpty(txtPassword.Password) && string.IsNullOrEmpty(txtUsername.Text) && string.IsNullOrEmpty(txtTcNo.Text) && string.IsNullOrEmpty(txtPhoneNumber.Text) && string.IsNullOrEmpty(cmbGender.Text) && string.IsNullOrEmpty(cmbCity.Text) && string.IsNullOrEmpty(cmbJob.Text)) { var msg = new MessageDialog("Eksik Veri Girişi Yaptınız Kontrol Ediniz."); await msg.ShowAsync(); } else { var date = CdtDateBirth.Date; DateTime time = date.Value.DateTime; var formatedtime = time.ToString("dd.mm.yyyy"); await client.EditUserAsync(new User { UserID = user.UserID, UserName = txtUsername.Text, TcNo = txtTcNo.Text, Phone = txtPhoneNumber.Text, Password = txtPassword.Password, LastName = txtLastName.Text, FirstName = txtFirstName.Text, Email = txtEmail.Text, Gender = cmbGender.SelectedValue.ToString(), City = cmbCity.SelectedValue.ToString(), Job = cmbJob.SelectedValue.ToString(), DateOfBirth = Convert.ToDateTime(time.ToShortDateString()) }); var ms = new MessageDialog("Güncelleme İşlemeniz Başarıyla Gerçekleşti"); await ms.ShowAsync(); } }