Range Slider Selection Problem

[Yaron Habot]

Silverlight 5.0
Windows
IE 10.0.9200 
Silverlight 2013.2 611 JUN 11,2003
Visual Studio 2012 C#

When data binding RadSlider's maximum attribute in range mode, the 2 thumbs are stuck at the left edge of the slider and do not move.
See code below and attached  image

• RadSilderRange-MaximumBound.PNG

<telerik:RadSlider x:Name="sldFilterByPrice" VerticalAlignment="Center" Margin="20"
                    HandlesVisibility="Visible" IsSelectionRangeEnabled="True"
                    TickFrequency="20"
                    TickPlacement="TopLeft"
                    TickTemplate="{StaticResource TickTemplate}"
                    IsSnapToTickEnabled="True"
                    Maximum="{Binding SeatFilterData.SeatFilterByPrice.PriceMax, Mode=OneTime}"
                    Minimum="0"
                    SelectionStart="0"
                    SelectionEnd="150"
                    MinimumRangeSpan="0"
                    MaximumRangeSpan="400"
               />

It works fine when the Maximum attribute is not bound but set to a number, like 200. See 

• RadSilderRange-MaximumPreset.PNG

I need to have the Maximum, Minimum, SelectionStart and SelectionEnd data bound oneway and be able to move the thumbs between the selection range. 
Is there a way to make it happen?

Thanks.

public class CSeatFilter
    {
        public class CSeatFilterByPrice
        {
            public List<decimal> Prices { get; set; }
            public double PriceMin
            {
                get
                {
                    return (double)Prices.First();
                }
            }
            public double PriceMax
            {
                get
                {
                    return (double)Prices.Last();
                }
            }
            public decimal SelectedPriceMin { get; set; }
            public decimal SelectedPriceMax { get; set; }

            public CSeatFilterByPrice()
            {
                Initialize();
            }

            private void Initialize()
            {
                Prices = new List<decimal>();
                Prices.Add(0.0M);
                Prices.Add(200.0M);
                SelectedPriceMin = Prices.First()+50;
                SelectedPriceMax = Prices.Last()-50;

            }
        }

        private CSeatFilterByPrice _seatFilterByPrice = new CSeatFilterByPrice();
        public CSeatFilterByPrice SeatFilterByPrice { get { return _seatFilterByPrice; } }

[Yaron Habot]

Found a workaround:
Remove SelectionStart, SelectionEnd, MinimumRangeSpan, MaximumRangeSpan
Added Selection

<telerik:RadSlider x:Name="sldFilterByPrice" VerticalAlignment="Center" Margin="20"
                    HandlesVisibility="Visible" IsSelectionRangeEnabled="True"
                    TickFrequency="20"
                    TickPlacement="TopLeft"
                    TickTemplate="{StaticResource TickTemplate}"
                    IsSnapToTickEnabled="True"
                    Maximum="{Binding SeatFilterData.SeatFilterByPrice.PriceMax}"
                    Minimum="0"
                    Selection="{Binding SeatFilterData.SeatFilterByPrice.Selection}"
                >

private SelectionRange<double> selection= new SelectionRange<double>(50, 150);;

public SelectionRange<double> Selection
{
    get
    {
        return this.selection;
    }
    set
    {
        if (this.selection != value)
        {
            this.selection = value;
        }
    }
}

Now the slider works as expected with the thumbs located at 50 and 150 instead of stuck at 0.