How to use dropdown in datagrid search?

it is possible to use Dropdown in datagrid search ? In RadzenGridColum what does FilterOprator, FilterProperty, FIlterValue ?

I need to make possible choose one or few values of row and show all lines that have it.


Yep, it is possible:

It is possible to use this with muliple select in DropDownFilter?

Yes, you can use any component in the FilterTemplate - you need of course to adjust the code for filtering (Data property of the DataGrid in this particular demo).

Is any of this possible using the Angular DataGrid instead of Blazor?

I'm looking for a way to have a dropdown of predefined choices for filtering a column in an Angular DataGrid. Any input on how this can be done?