MainWindow.xaml

<Window x:Class="csma_cd.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:csma_cd"
        mc:Ignorable="d"
        Title="MainWindow" Height="600" Width="925">
    <Grid >
        <Grid.RowDefinitions>
            <RowDefinition Height="50"></RowDefinition>
            <RowDefinition Height="*"></RowDefinition>

        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>

            <ColumnDefinition Width="620"></ColumnDefinition>
            <ColumnDefinition Width="280"></ColumnDefinition>

        </Grid.ColumnDefinitions>
        <TextBlock HorizontalAlignment="Center" Grid.Row="0" Grid.Column="0" FontSize="30" Text="CSMA-Collision Detection Protocol"></TextBlock>
        <Canvas Name="mycanvas" Grid.Row="1" Grid.Column="0"  Height="500"   Width="600" Background="MediumAquamarine">
            <TextBlock Width="50" Height="30" Text="Packet1"  Canvas.Left="0" Name="text1" Canvas.Top="225" Background="BlueViolet" ></TextBlock>
            <TextBlock Width="50" Height="30" Text="Packet2" Canvas.Left="315" Name="text2" Canvas.Top="10" Background="BlueViolet" ></TextBlock>
            <TextBlock Width="50" Height="30" Canvas.Left="300" Name="center_text" Canvas.Top="225"  ></TextBlock>
            <TextBlock Width="50" Height="30" Text="Packet3" Canvas.Left="315" Name="text3" Canvas.Top="410" Background="BlueViolet" ></TextBlock>

            <Image Name="comp1" Canvas.Left="0" Canvas.Top="210" Source="C:\Users\IamRoot\Documents\Visual Studio 2015\Projects\aloha\aloha\bin\Debug\images\c.ico" Width="80" Height="80" MouseLeftButtonUp="c1_left_btn_up"/>
            <Image Name="comp2" Canvas.Left="300" Canvas.Top="0" Source="C:\Users\IamRoot\Documents\Visual Studio 2015\Projects\aloha\aloha\bin\Debug\images\c.ico" Width="80" Height="80" MouseLeftButtonUp="c2_left_btn_up"></Image>


            <Image Name="comp3" Canvas.Left="300" Canvas.Top="400" Source="C:\Users\IamRoot\Documents\Visual Studio 2015\Projects\aloha\aloha\bin\Debug\images\c.ico" Width="80" Height="80" MouseLeftButtonUp="c3_left_btn_up"></Image>

            <Image Name="router_img" Source="C:\Users\IamRoot\Documents\Visual Studio 2015\Projects\aloha\aloha\bin\Debug\images\r.png" Width="80" Height="80" Canvas.Left="489" Canvas.Top="210"></Image>
        </Canvas>

        <StackPanel Grid.Row="1" Grid.Column="1"  >
            <TextBlock HorizontalAlignment="Center" FontSize="20" VerticalAlignment="Center" Text="Log:-"></TextBlock>
            <ListView Name="log" Height="300">

            </ListView>

            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" >
                <Button Name="start_btn" Click="start_btn_Click" >start</Button>
                <Separator Opacity="0" Height="20" Width="50"/>

                <Button Name="stop_btn" Click="stop_btn_Click">Stop</Button>
                <Separator Opacity="0" Height="20" Width="50"/>

                <Button Name="reset_btn" Click="reset_btn_Click">Reset</Button>

            </StackPanel>
            <TextBlock><LineBreak></LineBreak></TextBlock>

            <StackPanel Orientation="Horizontal">
                <Label>packet1 speed</Label>
                <Separator Opacity="0" Height="20" Width="50"/>

                <TextBox Width="50" Name="p1_speed_text_block"></TextBox>
                <Label>(Default 1.5)</Label>

            </StackPanel>
            <StackPanel Orientation="Horizontal">
                <Label>packet1 speed</Label>
                <Separator Opacity="0" Height="20" Width="50"/>

                <TextBox Width="50" Name="p2_speed_text_block"></TextBox>
                <Label>(Default 0.5)</Label>

            </StackPanel>

            <StackPanel Orientation="Horizontal">
                <Label>packet1 speed</Label>
                <Separator Opacity="0" Height="20" Width="50"/>

                <TextBox Width="50" Name="p3_speed_text_block"></TextBox>
                <Label>(Default 1.0)</Label>

            </StackPanel>
            <StackPanel Orientation="Horizontal">

                <Label>max attempt</Label>
                <Separator Opacity="0" Height="20" Width="60"/>

                <TextBox Name="max_try_box" Width="50"></TextBox>
                <Label>Default(3)</Label>
            </StackPanel>


        </StackPanel>
    </Grid>
</Window>