/// <summary>
/// Called to delete the selected license type after confirmation
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void bnDeleteLicenseType_Click(object sender, EventArgs e)
{
// Sanity check - ensure that we have an item selected
if (lvLicenseTypes.SelectedItems.Count == 0)
{
return;
}
// Get the database object
LicensesDAO lwDataAccess = new LicensesDAO();
// First ensure that we do not have any references to this license type as we
// cannot delete it if we have
LicenseType deleteLicenseType = lvLicenseTypes.SelectedItems[0].Tag as LicenseType;
DataTable references = lwDataAccess.EnumerateLicenses(deleteLicenseType);
if (references.Rows.Count != 0)
{
MessageBox.Show("Cannot delete this license type as Licenses exist which refer to it.", "Delete Failed");
return;
}
// No references but we should still confirm the delete
if (MessageBox.Show("Are you certain that you want to delete this license type?", "Confirm Delete", MessageBoxButtons.YesNo) == DialogResult.Yes)
{
LicenseTypesDAO licensesTypesDAO = new LicenseTypesDAO();
licensesTypesDAO.LicenseTypeDelete(deleteLicenseType);
}
this.RefreshView();
}
/// <summary>
/// Initialize the data displayed on the license tab
/// </summary>
private void InitializeLicenseTab()
{
// Load the application license types
// Populate the list view with the existing license types
LicenseTypesDAO lwDataAccess = new LicenseTypesDAO();
DataTable licenseTypesTable = lwDataAccess.EnumerateLicenseTypes();
// Iterate through the returned items
cbLicenseType.BeginUpdate();
foreach (DataRow row in licenseTypesTable.Rows)
{
LicenseType licenseType = new LicenseType(row);
cbLicenseType.Items.Add(licenseType, licenseType.Name);
}
cbLicenseType.SortStyle = ValueListSortStyle.Ascending;
cbLicenseType.EndUpdate();
// OK are we editing an existing definition or trying to create a new one?
if (_applicationLicense.LicenseID == 0)
{
cbLicenseType.SelectedIndex = 0;
footerPictureBox.Image = Properties.Resources.application_license_add_corner;
this.Text = "Add Application License";
}
else
{
footerPictureBox.Image = Properties.Resources.application_license_edit_corner;
this.Text = "Edit Application License";
cbLicenseType.SelectedIndex = cbLicenseType.FindStringExact(_applicationLicense.LicenseTypeName);
nupLicenseCount.Value = _applicationLicense.Count;
}
tbApplication.Text = _applicationName;
}
/// <summary>
/// Initialize the license types form
/// </summary>
private void InitializeLicenseTypes()
{
lvLicenseTypes.BeginUpdate();
lvLicenseTypes.Items.Clear();
// Populate the list view with the existing license types
LicenseTypesDAO lwDataAccess = new LicenseTypesDAO();
DataTable licenseTypesTable = lwDataAccess.EnumerateLicenseTypes();
// Iterate through the returned items
foreach (DataRow row in licenseTypesTable.Rows)
{
LicenseType licenseType = new LicenseType(row);
UltraListViewSubItem[] subItemArray = new UltraListViewSubItem[1];
subItemArray[0] = new UltraListViewSubItem();
subItemArray[0].Value = (licenseType.PerComputer) ? "Yes" : "No";
UltraListViewItem item = new UltraListViewItem(licenseType.Name, subItemArray);
item.Tag = licenseType;
lvLicenseTypes.Items.Add(item);
}
lvLicenseTypes.EndUpdate();
}
/// <summary>
/// Called as want to exit from this form potentially saving the definition or updating
/// an existing entry
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void bnOK_Click(object sender, EventArgs e)
{
if (tbName.Text == "")
{
MessageBox.Show("You must enter a name for this new license type");
DialogResult = DialogResult.None;
return;
}
// If we are creating a new license type then we must ensure that we have specified a
// name which does not already exist
LicenseTypesDAO lwDataAccess = new LicenseTypesDAO();
if (_licenseType.LicenseTypeID == 0)
{
int existingID = lwDataAccess.LicenseTypeFind(tbName.Text);
if (existingID != 0)
{
MessageBox.Show("The License Type " + tbName.Text + " already exists. Please enter a different name for this new license type", "Duplicate Name");
DialogResult = DialogResult.None;
return;
}
// OK all valid so add this new entry
_licenseType.Name = tbName.Text;
_licenseType.PerComputer = cbPerPC.Checked;
//
_licenseType.LicenseTypeID = lwDataAccess.LicenseTypeAdd(_licenseType);
}
else
{
// Update the existing definition
_licenseType.PerComputer = cbPerPC.Checked;
lwDataAccess.LicenseTypeUpdate(_licenseType);
}
}