I have been having issues adding the month view to a Telerik Blazor scheduler component, when there is grouping. It gives a null reference error any time I try to switch to the month view. I also tried it using the available demo for grouping in Telerik REPL, the only difference I found between my code and the demo was that I had used the ItemsPerSlot parameter. I added this to the demo, and was able to reproduce the error I was seeing, and I have attached the console output from the REPL demo. I believe there is either a bug with the ItemsPerSlot being used in conjunction with grouping on a scheduler component, or some instruction missing from how to set it up properly to prevent this null reference issue.
Changed code:
<SchedulerMonthView ItemsPerSlot="5"></SchedulerMonthView>
Demo used:
Blazor Scheduler (Event Calendar) Demos - Grouping | Telerik UI for Blazor
When the OverflowMode of a Toolbar is set to ToolBarOverflowMode.None, changing a tool’s parameters programmatically can cause overflowed tools to disappear.
Reproduction example: https://blazorrepl.telerik.com/mzYKQEYM23bGXmvN56
In the meantime, a possible alternative is to use Adaptive="false" instead OverflowMode="ToolBarOverflowMode.None"
I have a cascading DropDownList scenario with virtual scrolling. When the first DropDownList changes value, the second one should reset its scrollbar to the top, because it now contains new data. This doesn't happen.
Here is a REPL test page.
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ADMIN EDIT
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As a workaround for the time being, you may track when the value is changed in the parent DropDownList to dispose and re-initialize the child DropDownList.
Here is an example: https://blazorrepl.telerik.com/mdafHabk585ZtzyV54.