Cannot apply ServiceRecord

[Taro7x3]

Service records created using ServiceRecordBuilder(); cannot be applied to BluetoothListener.ServiceRecord.

var serviceClass = new Guid("00001101-0000-1000-8000-00805F9B34FB");
var serviceName = "Virtual Printer";

var builder = new ServiceRecordBuilder();

builder.AddServiceClass(BluetoothService.SerialPort);
builder.AddServiceClass(BluetoothService.BasicPrinting);
builder.AddServiceClass(BluetoothService.PrintingStatus);
builder.ServiceName = serviceName;

builder.AddCustomAttribute(new ServiceAttribute(0x0304,
    ServiceElement.CreateNumericalServiceElement(ElementType.UInt16, 0x0001)));

ServiceRecord record = builder.ServiceRecord;

listener = new BluetoothListener(serviceClass) 
{
    ServiceRecord = record
};

var radio = BluetoothRadio.PrimaryRadio;
if (radio != null)
{
    radio.Mode = RadioMode.Discoverable;
}

listener.Start();

[peterfoot]

Are you getting an error, or not seeing the device advertising those details? Also what platform are you running this on?

[Taro7x3]

The "ServiceRecord (BluetoothListener.ServiceRecord)" is Read Only, so I couldn't access or create instance with original service record that I built with "ServiceRecordBuilder".
Is there any way to apply custmized Service Record to BluetoothListener?

My project is based on WPF (Visual Studio 2022, .Net 9.0) and using 32feet.NET (3.5.0).

[peterfoot]

I see, there is a specific constructor which accepts a service record - public BluetoothListener(Guid service, ServiceRecord sdpRecord)