Fix: clear dgvBluetoothDevices.

BITable/BiTable.cs

@@ -2,12 +2,10 @@
 using System.Data;
 using System.Linq;
 using System.Windows.Forms;
-
 using InTheHand.Net.Bluetooth;
 using InTheHand.Net.Sockets;
 using System.IO;
 using System.Threading.Tasks;
-using System.Drawing.Printing;
 using Newtonsoft.Json;
 using System.Drawing;
 
@@ -29,6 +27,11 @@ namespace BITable
 
         private void ScanBluetoothDevices()
         {
+            dgvBluetoothDevices.Invoke(new Action(() =>
+            {
+                dgvBluetoothDevices.Rows.Clear();
+            }));
+
             devices = client.DiscoverDevices();
             foreach (var device in devices)
             {
@@ -44,8 +47,18 @@ namespace BITable
         {
             Task.Factory.StartNew(new Action(() =>
             {
-                ScanBluetoothDevices();
+                btnScanBluetoothDevices.Invoke(new Action(() =>
+                {
+                    btnScanBluetoothDevices.Enabled = false;
                 }));
+                ScanBluetoothDevices();
+            })).ContinueWith(t =>
+            {
+                btnScanBluetoothDevices.Invoke(new Action(() =>
+                {
+                    btnScanBluetoothDevices.Enabled = true;
+                }));
+            });
         }
 
         private void dgvBluetoothDevices_CellMouseDoubleClick(object sender, DataGridViewCellMouseEventArgs e)

TestBluetooth/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
+    </startup>
+</configuration>

TestBluetooth/Program.cs

@@ -0,0 +1,116 @@
+//using System;
+//using System.Text;
+//using InTheHand.Net.Sockets;
+//using InTheHand.Net;
+//using InTheHand.Net.Bluetooth;
+//using System.Net.Sockets;
+//using System.Linq;
+
+//namespace dConsoleApp
+//{
+//    static class Program
+//    {
+//        // My BT USB adapter
+//        //private static BluetoothEndPoint EP = new BluetoothEndPoint(BluetoothAddress.Parse("00:02:72:CD:9A:33"), BluetoothService.BluetoothBase);
+//        //private static BluetoothClient BC = new BluetoothClient(EP);
+//        //static string MY_PAIRING_CODE = "0B8N62R9";
+//        //// The BT device that would connect
+
+//        //private static BluetoothDeviceInfo BTDevice = new BluetoothDeviceInfo(BluetoothAddress.Parse("94:21:97:60:07:C0"));
+
+//        private static NetworkStream stream = null;
+
+//        static void Main(string[] args)
+//        {
+//            BluetoothRadio.PrimaryRadio.Mode = RadioMode.Connectable;
+//            BluetoothClient client = new BluetoothClient();
+//            BluetoothDeviceInfo[] devices = client.DiscoverDevices();
+//            BluetoothClient bluetoothClient = new BluetoothClient();
+//            String authenticated;
+//            String classOfDevice;
+//            String connected;
+//            String deviceAddress;
+//            String deviceName;
+//            String installedServices;
+//            String lastSeen;
+//            String lastUsed;
+//            String remembered;
+//            String rssi;
+//            foreach (BluetoothDeviceInfo device in devices)
+//            {
+//                authenticated = device.Authenticated.ToString();
+//                classOfDevice = device.ClassOfDevice.ToString();
+//                connected = device.Connected.ToString();
+//                deviceAddress = device.DeviceAddress.ToString();
+//                deviceName = device.DeviceName.ToString();
+//                installedServices = device.InstalledServices.ToString();
+//                lastSeen = device.LastSeen.ToString();
+//                lastUsed = device.LastUsed.ToString();
+//                remembered = device.Remembered.ToString();
+//                rssi = device.Rssi.ToString();
+//                //string[] row = new string[] { authenticated, classOfDevice, connected, deviceAddress, deviceName, installedServices, lastSeen, lastUsed, remembered, rssi };
+//                //dataGridView1.Rows.Add(row);
+//                //label1.Text += $"{""}";
+//            }
+//            var BTDevice = devices.Where(x => x.DeviceName == "BITABLE11").FirstOrDefault();
+//            if (BluetoothSecurity.PairRequest(BTDevice.DeviceAddress, MY_PAIRING_CODE))
+//            {
+//                Console.WriteLine("PairRequest: OK");
+
+//                if (BTDevice.Authenticated)
+//                {
+//                    Console.WriteLine("Authenticated: OK");
+
+//                    BC.SetPin(MY_PAIRING_CODE);
+
+//                    BC.BeginConnect(BTDevice.DeviceAddress, BluetoothService.SerialPort, new AsyncCallback(Connect), BTDevice);
+//                }
+//                else
+//                {
+//                    Console.WriteLine("Authenticated: No");
+//                }
+//            }
+//            else
+//            {
+//                Console.WriteLine("PairRequest: No");
+//            }
+
+//            Console.ReadLine();
+//        }
+
+//        private static void Connect(IAsyncResult result)
+//        {
+//            if (result.IsCompleted)
+//            {
+//                // client is connected now :)
+//                Console.WriteLine(BC.Connected);
+//                stream = BC.GetStream();
+
+//                if (stream.CanRead)
+//                {
+//                    byte[] myReadBuffer = new byte[1024];
+//                    StringBuilder myCompleteMessage = new StringBuilder();
+//                    int numberOfBytesRead = 0;
+
+//                    // Incoming message may be larger than the buffer size. 
+//                    do
+//                    {
+//                        numberOfBytesRead = stream.Read(myReadBuffer, 0, myReadBuffer.Length);
+
+//                        myCompleteMessage.AppendFormat("{0}", Encoding.ASCII.GetString(myReadBuffer, 0, numberOfBytesRead));
+//                    }
+//                    while (stream.DataAvailable);
+
+//                    // Print out the received message to the console.
+//                    Console.WriteLine("You received the following message : " + myCompleteMessage);
+//                }
+//                else
+//                {
+//                    Console.WriteLine("Sorry.  You cannot read from this NetworkStream.");
+//                }
+
+//                Console.ReadLine();
+//            }
+//        }
+//    }
+//}

TestBluetooth/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("TestBluetooth")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("TestBluetooth")]
+[assembly: AssemblyCopyright("Copyright ©  2020")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("b5a312e7-14c1-4261-8a4e-c4b71234a0a7")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

TestBluetooth/TestBluetooth.csproj

@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{B5A312E7-14C1-4261-8A4E-C4B71234A0A7}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>TestBluetooth</RootNamespace>
+    <AssemblyName>TestBluetooth</AssemblyName>
+    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="InTheHand.Net.Personal, Version=3.5.605.0, Culture=neutral, PublicKeyToken=ea38caa273134499, processorArchitecture=MSIL">
+      <HintPath>..\packages\32feet.NET.3.5.0.0\lib\net\InTheHand.Net.Personal.dll</HintPath>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+    <None Include="packages.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>

TestBluetooth/packages.config

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="32feet.NET" version="3.5.0.0" targetFramework="net461" />
+</packages>

packages/Newtonsoft.Json.12.0.3/LICENSE.md

@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2007 James Newton-King
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.