Hello Paul Desormeaux,
There are several problems in the code that you have posted, all of which prevent the client-side code of RadSlider from working. Basically, as there is a JS error on your page, the slider cannot initialize correctly.
The first error that I get is the following:
Error: Sys.ArgumentOutOfRangeException: SmallChange should be decimal bigger than 0
Parameter name: value
Actual value was 0.
This error is a result of the fact that you have tried to set the SmallChange/SlideStep properties of the slider to "0". Please set these properties to a value, bigger than 0.
Then, when I changed the value of the properties to 1, I got four errors that the following functions are not defined:
As soon as I added these functions to the page, the page opened without a JS error. However, when I tried to move the dragHandle of the slider, I got another JS error:
Error: 'undefined' is null or not an object
The error was raised in your code as there are no items in the Items collection of the slider:
var value_low = items[inx_low].get_value();
As soon as I added a few items to the Items collection of the slider, the page opened without a JS error and I was able to move both dragHandles in IE and FF. I have attached my test page for your reference.
In case this information does not help you fix the problem, please open a formal support ticket and send me a running test project that demonstrates the problem.
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