WPF: why my slider not show the minimum value on my label

Question

<Grid Margin="405,192,170,450" >
    <Slider Name="speedSlider" Value="1" Style="{StaticResource SliderStyle}" HorizontalAlignment="Left" VerticalAlignment="Bottom"
        Minimum="0" Maximum=" 50" TickFrequency="5" TickPlacement="None" Width="160"/>
    <Label Name="lblSliderSpeed" Content="{Binding ElementName=speedSlider, Path=Value, UpdateSourceTrigger=PropertyChanged}"
             Grid.Column="1" VerticalAlignment="Bottom" HorizontalAlignment="Right" ContentStringFormat="{}{0:#}"/>
</Grid>

My label show the current slide value while the value changing but at the minimum value (0) my label not shows any value

i also try this code behind and this still not helped although the if is executed:

private void speedSlider_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
    {
        double value = speedSlider.Value;
        if (value == 0)
        {
            lblSliderSpeed.Content = value;
        }
    }

Answer 1

The problem is with your ContentStringFormat Change the ContentStringFormat to Like this

<Label Name="lblSliderSpeed" Content="{Binding ElementName=speedSlider, Path=Value, UpdateSourceTrigger=PropertyChanged}"
         Grid.Column="1" VerticalAlignment="Bottom" HorizontalAlignment="Right" ContentStringFormat="{}{0:00}"/>

And No code Required In page Behind.

Because,The "#" custom format specifier serves as a digit-placeholder symbol. If the value that is being formatted has a digit in the position where the "#" symbol appears in the format string, that digit is copied to the result string. Otherwise, nothing is stored in that position in the result string.

For more Information '#' Formation Here and for "0" Formation click here

Answer 2

Your String Format doesn't support zero, use this instead:

ContentStringFormat="{}{0:#; #;0}"

see this link for more information on String format for Int.