Slider Binding Miminum, Maximum and Value problem<!-- --> | <!-- -->Patrick Desjardins Blog
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Slider Binding Miminum, Maximum and Value problem

Posted on: October 11, 2011

The Slider is a component that let you slide a small rectangle from one side to the other. You have to put a minimum value and a maximum value and from there, the user can select a value between these two values.

slider

One interesting thing to do is to rely on the business logic to handle all values of this control. This can be done using Binding.

<Slider SmallChange="{Binding SmallChange, Mode=OneTime}" LargeChange="{Binding LargeChange, Mode=OneTime}" Value="{Binding MyRealValue, Mode=TwoWay}" Minimum="{Binding Minimum, Mode=OneTime}" Maximum="{Binding Maximum, Mode=OneTime}" />

The code above won't work. The syntax is well written, but it won't work. The code will compile but the slider won't be able to slide.

<Slider SmallChange="{Binding SmallChange, Mode=OneTime}"
LargeChange="{Binding LargeChange, Mode=OneTime}"
Maximum="{Binding Maximum, Mode=OneTime}"
Minimum="{Binding Minimum, Mode=OneTime}"
Value="{Binding MyRealValue, Mode=TwoWay}"
/>

This code works because the Maximum value is the first to be set, then the Minimum and finally the Value is binded. Doing the binding in a different order won't let you modify the values of the slider.

Remember to always use maximum, minimum and then value when using the Slider. This is viable for Silverlight 3 and 4.