Fix multiple poller situational problems

Examples.WPF/MainWindow.xaml

@@ -0,0 +1,162 @@
+<Window x:Class="Examples.WPF.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Examples.WPF"
+        d:DataContext="{d:DesignInstance local:MainWindow, IsDesignTimeCreatable=True}"
+        mc:Ignorable="d"
+        MinWidth="500"
+        MinHeight="400"
+        Height="600"
+        Width="800"
+        Title="MewtocolNet WPF Demo">
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition/>
+            <RowDefinition Height="auto"/>
+            <RowDefinition MinHeight="30" Height="150"/>
+        </Grid.RowDefinitions>
+        <ContentControl x:Name="mainContent"/>
+        <GridSplitter Grid.Row="1"
+                      HorizontalAlignment="Stretch"
+                      Background="Gray" 
+                      ShowsPreview="true"
+                      Height="5">
+            <GridSplitter.Template>
+                <ControlTemplate>
+                    <Separator/>
+                </ControlTemplate>
+            </GridSplitter.Template>
+        </GridSplitter>
+        <Grid Grid.Row="2">
+
+            <Grid.RowDefinitions>
+                <RowDefinition Height="auto"/>
+                <RowDefinition/>
+                <RowDefinition Height="20"/>
+            </Grid.RowDefinitions>
+
+            <Border Background="LightGray"/>
+
+            <StackPanel HorizontalAlignment="Left"
+                        Orientation="Horizontal">
+
+                <TextBlock Text="Logger"
+                           Margin="5"/>
+
+                <Border Width="1"
+                        Margin="5"
+                        Background="Gray"/>
+
+                <StackPanel Orientation="Horizontal">
+
+                    <TextBlock Text="Rx"
+                               Margin="5"/>
+
+                    <Ellipse IsEnabled="{Binding AppViewModel.Plc.IsReceiving, Mode=OneWay}"
+                             Fill="Lime"
+                             Width="10"
+                             Height="10">
+                        <Ellipse.Style>
+                            <Style TargetType="Ellipse">
+                                <Style.Triggers>
+                                    <Trigger Property="IsEnabled" Value="False">
+                                        <Setter Property="Opacity" Value=".1"/>
+                                    </Trigger>
+                                </Style.Triggers>
+                            </Style>
+                        </Ellipse.Style>
+                    </Ellipse>
+
+                    <TextBlock Text="Tx"
+                           Margin="5"/>
+
+                    <Ellipse Fill="Orange"
+                             IsEnabled="{Binding AppViewModel.Plc.IsSending, Mode=OneWay}"
+                             Width="10"
+                             Height="10">
+                        <Ellipse.Style>
+                            <Style TargetType="Ellipse">
+                                <Style.Triggers>
+                                    <Trigger Property="IsEnabled" Value="False">
+                                        <Setter Property="Opacity" Value=".1"/>
+                                    </Trigger>
+                                </Style.Triggers>
+                            </Style>
+                        </Ellipse.Style>
+                    </Ellipse>
+
+                    <Border Width="1"
+                            Margin="5"
+                            Background="Gray"/>
+
+                    <TextBlock Text="{Binding AppViewModel.Plc.BytesPerSecondDownstream, Mode=OneWay}"
+                               VerticalAlignment="Center"/>
+                    
+                    <Border Width="1"
+                            Margin="5"
+                            Background="Gray"/>
+
+                    <TextBlock Text="{Binding AppViewModel.Plc.BytesPerSecondUpstream, Mode=OneWay}"
+                               VerticalAlignment="Center"/>
+                    
+                    <StackPanel.Style>
+                        <Style TargetType="StackPanel">
+                            <Style.Triggers>
+                                <DataTrigger Binding="{Binding AppViewModel.PlcIsNull}" Value="True">
+                                    <Setter Property="Visibility" Value="Collapsed"/>
+                                </DataTrigger>
+                            </Style.Triggers>
+                        </Style>
+                    </StackPanel.Style>
+
+                </StackPanel>
+                
+            </StackPanel>
+
+            <StackPanel Orientation="Horizontal"
+                        HorizontalAlignment="Right">
+                
+                <Button Content="Expand"
+                        Margin="2"/>
+
+                <ToggleButton Content="Autoscroll"
+                              IsChecked="True"
+                              Margin="2"
+                              x:Name="autoScrollBtn"/>
+                
+            </StackPanel>
+
+            <ListBox Grid.Row="1"
+                     Background="Black"
+                     Foreground="White"
+                     BorderThickness="0"
+                     VirtualizingPanel.IsVirtualizing="true" 
+                     VirtualizingPanel.VirtualizationMode="Recycling"
+                     ScrollViewer.HorizontalScrollBarVisibility="Disabled"
+                     ScrollViewer.VerticalScrollBarVisibility="Disabled"
+                     ItemsSource="{Binding LoggerItems, Mode=OneWay}"
+                     x:Name="loggerList">
+                <ItemsControl.ItemsPanel>
+                    <ItemsPanelTemplate>
+                        <StackPanel Orientation="Vertical"/>
+                    </ItemsPanelTemplate>
+                </ItemsControl.ItemsPanel>
+                <ItemsControl.ItemTemplate>
+                    <DataTemplate>
+                        <ContentPresenter Content="{Binding}"/>
+                    </DataTemplate>
+                </ItemsControl.ItemTemplate>
+            </ListBox>
+
+            <Border Background="Black"
+                    Grid.Row="2">
+                <TextBlock Text=">"
+                           Foreground="White"
+                           Margin="5,0,0,0"/>
+            </Border>
+            
+        </Grid>
+    </Grid>
+</Window>