Bug binding to Slider.Maximum

Question

If you look at this: http://mister-j.dyndns.org/peterj/pete/SilverlightApplication1TestPage.html

It binds the values 3 and 5 to the Minimum and Maximum values of the slider. However, the Maximum binding isn't picked up.

 

The source is this:

XAML:

<Grid x:Name="LayoutRoot" Background="White">
    <Grid.ColumnDefinitions>
      <ColumnDefinition Width="Auto"/>
      <ColumnDefinition Width="*"/>
      <ColumnDefinition Width="Auto"/>
    </Grid.ColumnDefinitions>
    <Grid.RowDefinitions>
      <RowDefinition Height="Auto"/>
      <RowDefinition Height="Auto"/>
    </Grid.RowDefinitions>
    <TextBlock Grid.Column="0" Text="{Binding MinValue}" VerticalAlignment="Center"/>
    <Slider Name="slider" Grid.Column="1" Minimum="{Binding MinValue}" Maximum="{Binding MaxValue}" />
    <TextBlock Grid.Column="2" Text="{Binding MaxValue}" VerticalAlignment="Center"/>
    <TextBlock Grid.Row="1" Grid.ColumnSpan="3" Text="{Binding Info}" />
  </Grid>

and the code is this:

public partial class MainPage: UserControl
  {
    public double MinValue { get; set; }
    public double MaxValue { get; set; }

    public string Info
    {
      get
      {
        return "Slider Minimum = " + slider.Minimum + ", Maximum = " + slider.Maximum;
      }
    }

    public MainPage()
    {
      MinValue = 3.0;
      MaxValue = 5.0;

      DataContext = this;

      InitializeComponent();
    }
  }

Answer 1

BTW I am using the Silverlight 5 beta runtime

Answer 2

Hi, this is a known (annoying) problem.

Read this blog post: http://dotnetbyexample.blogspot.com/2009/08/bind-silverlight-3-slider-value-minimum.html

Also Silverligth 4 is affected by this problem, while WPF4 isn't.

In a nutshell, try change

<Slider Name="slider" Grid.Column="1" Minimum="{Binding MinValue}" Maximum="{Binding MaxValue}" />

into

<Slider Name="slider" Grid.Column="1" Maximum="{Binding MaxValue}" Minimum="{Binding MinValue}" />

Answer 3

Still applies to Silverlight 5 as well.

Answer 4

Still applies to Silverlight 5 as well.

The bug remains unfixed as of May 2013 and impacts Surface Store apps, in addition see this other bug too.

I'm trying to do pretty basic stuff on a Surface and so far have found two bugs in Slider, this latest one being quite serious with no apparent workaround.

Cap'n