private void update_Button_Click(object sender, EventArgs e)
{
try
{
Cursor = Cursors.WaitCursor;
List <QueuePortData> selected = Selected;
TraceFactory.Logger.Debug("Begin Updating Port Addresses...");
if (ValidateInput(selected))
{
StandardTcpIPPort port = null;
StandardTcpIPPort newPort = null;
foreach (QueuePortData selectedItem in selected)
{
port = _installedPorts[selectedItem];
/* What we need to do here is change the existing port's name and address.
* Since the OS identifies the port by it's name, we have to create a new port,
* copy over all of it's properties, point the print queue to the new port,
* then delete the old one.
* One caveat to note: The port version needs to ALWAYS be 1 when creating a new port.
* Existing ports will show different values for Version. For example:
* Server 2003/XP Version = 1.
* Server 2008/Win7 Version = 2.
* So, if this code is executing on a Win7 box, it's existing port will show a Version of 2.
* However, when creating the new port, the Version needs to be set to 1. After it is created,
* it will display 2. I couldn't find any info to explain why this is.
* When using CreateRawPortData, the Version defaults to 1.
* All other properties are copied to the newly created port. -kyoungman
*/
newPort = new StandardTcpIPPort(selectedItem.NewPortAddress, selectedItem.PortNumber);
newPort.Protocol = port.Protocol;
newPort.Queue = selectedItem.QueueName;
newPort.SnmpCommunity = port.SnmpCommunity;
newPort.SnmpEnabled = port.SnmpEnabled;
newPort.SnmpDevIndex = port.SnmpDevIndex;
newPort.CreatePort();
ChangeQueuePort(port.PortName, newPort.PortName); //Point the printer to the new port
port.DeletePort();
}
RefreshGrid();
}
}
catch (InvalidOperationException opEx)
{
TraceFactory.Logger.Error(opEx);
DisplayError();
}
catch (ManagementException manEx)
{
TraceFactory.Logger.Error(manEx.JoinAllErrorMessages(), manEx);
DisplayError();
}
finally
{
Cursor = Cursors.Default;
}
}
/// <summary>
/// Retrieves the list of installed ports on this machine and pairs the port data with it's corresponding queue information.
/// </summary>
/// <returns></returns>
private List <QueuePortData> GetQueueData()
{
Collection <StandardTcpIPPort> ports = StandardTcpIPPort.InstalledPorts;
List <QueuePortData> result = new List <QueuePortData>();
_installedPorts = new Dictionary <QueuePortData, StandardTcpIPPort>();
StandardTcpIPPort port = null;
foreach (PrintQueue queue in PrintQueueController.GetPrintQueues())
{
QueuePortData data = new QueuePortData(queue.Name, queue.QueuePort.Name);
port = ports.Where(p => p.PortName == data.PortName).FirstOrDefault();
if (port != null) //Only return the queues that have a port.
{
data.PortAddress = port.Address;
data.PortNumber = unchecked ((int)port.PortNumber);
result.Add(data);
_installedPorts.Add(data, port);
}
}
return(result);
}
