Last Updated: 02 May 2022 11:43 by Steve
Created by: Steve
Comments: 0
Category: Slider
Type: Bug Report


In case the Change event is used for updating the Value, the interactions of the Slider component will stop working. The issue stems from using the Value parameter to trigger the onchange.

Reproduction (if bug)


  1. Focus the slider
  2. Press the keyboard arrows

Current (if bug)

The value does not change

Expected (if bug)

The value should change. Change event should fire with the upcoming value and not the old one.

Browser (if bug)


Project type (if bug)


Last Updated: 29 Sep 2021 17:46 by ADMIN
Created by: René
Comments: 6
Category: Slider
Type: Bug Report

When setting slider value by clicking on a position within slider the ValueChanged event does not always fire.  In those cases the slider looks as if set to the correct value but the connected Value is not updated. 

Unfortunately I could not find a reproducible pattern for this to happen.  Sometimes it occurs on the first or second click but sometimes it takes many clicks for the error to occur again.

The problem sometimes also occurs if setting the value not by clicking on a position but by dragging the slider.  In both cases (clicking on position and sliding) the GUI is updated before the ValueChanged event is fired.  The error does not seem to occur if using the left/right buttons for setting a value.  In this case the ValueChanged event is fired first and then the GUI is updated.

This error renders the Slider Component useless for us because the user can never be sure whether or not the value has been set correctly.

Last Updated: 04 Feb 2021 01:11 by ADMIN
Release 2.22.0

The Slider Component only seems to work properly if the range is a multiple of 10.

<TelerikSlider @bind-Value="@MyInteger"

works as expected.  Same is true if Max is set to 20.  But if Max is set to 7 or 9 or 11 it does not work.  In those cases, clicking on the right arrow button does not do anything and after dragging the slider it magically moves back to 0.  Clicking on a value only works every second time.