DataList won't reload

Radzen Studio Blazor Server
1

I have a DataList like the one in the panel example (https://blazor.radzen.com/panel).
When I update it after removing the last item in the DataList it shows up empty. If I there are more than one item left I see the pages and can choose one of them, but if it was the second to last item the DataList is blank. If I reload the page using F5 it shows the item(s) that are left.

2

Try to call Reload() method of the DataList.

3

It didn't make a difference unfortunately.
It 's like if you remove the last item then it it tries to show it anyway. Because if I remove any other than the last object it works.

4

Please call LastPage() or FirstPage() instead Reload(). We will do our best to handle it internally somehow.

1 Like
5

I just found FirstPage and LastPag and it works!

6

This is an old thread, but I am still experiencing this issue.
Reload(), FirstPage(), and LastPage() do not work.

I have discovered, however, that disallowing Virtualization (i.e. AllowVirtualization=false) results in the desired functionality.

It's fine for my purposes, but if I NEEDED virtualization it would not be acceptable.

8

I mean the dropdowns don't look the same. The browser is Chrome 96..

9

If you want to use virtualization (AllowVirtualization=true), you can reset the data before calling Reload.

Example:

dataList.Data = null;
await dataList.Reload();
2 Likes
10

Does this actually trigger a rerender of the full dataList? I tried your solution but e.g. RadzenDropDown in the dataList is not rerendered even when setting @key. I am using virtualization.