Hi Thinh,
Greetings from Syncfusion support.
We have validated the reported issue in the Blazor Slider
component. We were able to replicate the issue, and we considered it a bug on
our end. The fix for this issue will be included in our weekly patch release,
which is expected to be released at the end of April 2023. You can track the
status of the issue's fix using the following feedback link:
Feedback: https://www.syncfusion.com/feedback/42910/facing-an-issue-with-tooltip-value-in-the-blazor-slider-component
Disclaimer: Inclusion of this solution in the
weekly release may change due to other factors including but not limited to QA
checks and works reprioritization