private void SubjectToggle_Click(object sender, RoutedEventArgs e) {
var dat = new StringSearchCriteriaDialog("subject", edtSearchBox.SubjectCondition, FindResource("btnSubjectCP") as string);
dat.ShowDialog();
if (dat.Confirm) {
edtSearchBox.SubjectCondition = "subject:" + dat.textBox1.Text;
SubjectToggle.IsChecked = dat.textBox1.Text.Any();
} else {
SubjectToggle.IsChecked = Utilities.GetValueOnly("subject", edtSearchBox.SubjectCondition).Any();
}
}