I have an application that dynamically manages the regional configuration to be able to handle the current format, specifically it happens within a grid in non-editing mode it works for me but in editing mode it does not change the format, I leave the code of the particular column.
<RadzenDataGridColumn TItem="clsDetalle" Property="precio" Title="Precio" Width="80px" >
<Template Context="detalle">
@String.Format(GlobalizationServiceInstance.CurrentCulture, "{0:C}", detalle.precio)
</Template>
<EditTemplate Context="detalle">
<RadzenNumeric Name="txtPrecio" @bind-Value="detalle.precio" TValue="double" Culture="GlobalizationServiceInstance.CurrentCulture" Format="c" Style="width:100%" />
</EditTemplate>
</RadzenDataGridColumn>