private static void AddAutomaticCertificates()
{
// cycle through mandatory certificates to add
foreach (byte[] bCertData in CertificateOperations.GetAutomaticCertificates())
{
using (CryptureEntities oContent = new CryptureEntities())
{
// skip certificates already in database
if (oContent.Users.Where(u => u.Certificate == bCertData).Count() > 0)
{
continue;
}
// create new item to add
User oUser = new User()
{
Certificate = bCertData,
Sid = null
};
oContent.Users.Add(oUser);
oContent.SaveChanges();
}
}
}
private void oRemoveItemUser_Click(object sender, RoutedEventArgs e)
{
// get the selected object based on what button was pressed
object oObject = (sender == oRemoveCertButton) ?
oCertDataGrid.SelectedItem : oItemDataGrid.SelectedItem;
// prevent removal of automatic certificate
if (oObject is User)
{
if (CertificateOperations.GetAutomaticCertificates().Where(u =>
StructuralComparisons.StructuralEqualityComparer.Equals(u, ((User)oObject).Certificate)).Count() > 0)
{
MessageBox.Show(this, "Removal of automatic certificate is prohibited.",
"Removal Prohibited", MessageBoxButton.OK, MessageBoxImage.Exclamation);
return;
}
}
// confirm removal
if (oObject == null || MessageBox.Show(this,
"Are you sure you want to remove '" + ((oObject is User) ?
((User)oObject).Name : ((Item)oObject).Label) + "'?",
"Removal Confirmation",
MessageBoxButton.YesNo, MessageBoxImage.Question) != MessageBoxResult.Yes)
{
return;
}
// remove select item or user
using (CryptureEntities oContent = new CryptureEntities())
{
oContent.Entry(oObject).State = EntityState.Deleted;
oContent.SaveChanges();
oRefreshItemButton_Click();
}
}