Numeric format in grid

Following the example but can't get the numeric format going inside the grid. This is what I have in the grid definition:

<RadzenNumeric TValue="double" Format="##,###,###.00" @bind-Value="@cuotum.MONTO" Name="MONTO" />

but this is how it looks, was expecting to see something like "1,000,000.00"

the class definition is OK, what am I missing ?

public double MONTO { get; set; }

You have this in EditTemplate most probably, for all other cases you can use string.Format():

That's the way to do it, thanks for the prompt feedback.
I just inherited a SQL Server DB that has numeric fields with multiple number types but mostly decimals and int. Is it better to have all amount fields as Float type for Radzen ?