How do I hide a grid column when a toggle button is checked in C#

On the right side of my Form I have a grid with two on columns,the right column is "45" in width and the left one named "LeftColumn" is set as "Auto" for width. I would like to use checked and unchecked events of a toggle button named "Togglebtn" to show and hide that "LeftColumn"

<pre><!--// Navigation Panel //-->
 
 <Grid x:Name="nav_pnl"
                  HorizontalAlignment="Right"
                  Width="Auto"
                  Background="#00171F" 
				  Margin="0,45,0,0">

            <Grid.ColumnDefinitions>
                <ColumnDefinition x:Name="LefttColumn" Width="Auto" />
                <ColumnDefinition Width="45" />
            </Grid.ColumnDefinitions>

            <Grid.RowDefinitions>
                <RowDefinition Height="300" />
                <RowDefinition Height="45" />
                <RowDefinition Height="45" />
                <RowDefinition Height="45" />
                <RowDefinition Height="45" />
                <RowDefinition Height="Auto" />
            </Grid.RowDefinitions>

            <!--First navigation item-->

            <Button x:Name="Home"
                        Height="45"
                        BorderBrush="Transparent"
                        Grid.Column="1" Grid.Row="1">

                <Button.Background>

                    <ImageBrush ImageSource="images/Home_2.png"
                                Stretch="Uniform"/>

                </Button.Background>

            </Button>

            <Label x:Name ="HomeText"
                       Grid.Column="0" 
					   Grid.Row="1"
					   Width ="185"
					   Height="45"
					   Style="{StaticResource font_nav_style}" 
                       Content="الصفحة الرئيسية"/>
					   
			<!--There are 3 other items-->

        </Grid>