Built-in displays

A display decides how a value is shown: in a grid cell, a display field or on a view page. Each value gets one from its type, and you can pick another with UseDisplay:

using StellarAdmin.Resources.Displays;

columns.Add(booking => booking.Total, column =>
    column.UseDisplay<NumberDisplay>(number => number.Format = "C"));

fields.AddDisplayField(customer => customer.IsVip, field =>
    field.UseDisplay<BooleanDisplay>(flag =>
    {
        flag.Appearance = BooleanDisplayAppearance.Text;
        flag.TrueText = "VIP";
        flag.FalseText = "Standard";
    }));

The displaysCopy Anchor Link

All of them are in StellarAdmin.Resources.Displays.

FormatsCopy Anchor Link

Format falls back to the property's [DisplayFormat]. Dates default to d MMM yyyy, times to HH:mm, and both together to d MMM yyyy, HH:mm.

Formats use the request's culture, so "C" shows your server's currency unless your app sets a request culture.

One gotcha: [DataType(DataType.Date)] brings in MVC's short date format, like 10/14/2026 in en-US. Set Format on those if you want the panel's style.

Enums show each member's [Display(Name)], or its name with spaces: NorthAmerica reads "North America".

TextCopy Anchor Link

LineClamp cuts long text off after that many lines. In the grid, line breaks only show when it's set. In display fields, multi-line text keeps its line breaks.

HtmlDisplay sanitizes the HTML and shows it formatted. In the grid it shows the text without formatting, cut off after two lines.

BadgesCopy Anchor Link

BadgeDisplay shows each item of a list, or each entry of a dictionary, as a badge:

columns.Add(trip => trip.Highlights, column =>
    column.UseDisplay<BadgeDisplay>(badge =>
    {
        badge.Variant = BadgeVariant.Outline;
        badge.Limit = 3;
    }));

Limit shows that many, and the rest as a +2 badge with the others in its tooltip. Every badge gets the same Variant. For a badge styled by its value, write a custom display.

It also shows related records, like a trip's tags. See showing related values.

ImagesCopy Anchor Link

ImageDisplay shows a thumbnail in the grid, and a larger image that opens in a lightbox elsewhere. See images.

An empty value shows a placeholder.

Empty valuesCopy Anchor Link

A null or empty value shows the field's EmptyText, then [DisplayFormat(NullDisplayText)]. In the grid, that's an empty cell by default, and in display fields a dash.

Changing a display everywhereCopy Anchor Link

To change how a built-in display looks across the panel, override its template. See display templates.