class16 members

ZplContext

public sealed class ZplContext

Constructors

Signature	Description
# `ZplContext(int dpi, LabelUnit unit, Func<string, object> fieldResolver, int index)`

Properties

Property	Type	Description
`Dpi` { get; }	`int`
`Engine` { get; init; }	`ExpressionEngine`
`FieldResolver` { get; }	`Func<string, object>`	Resolves a data field name for the current record (null = unbound/not found).
`Index` { get; }	`int`	Zero-based record index.
`ItemValues` { get; }	`Dictionary<string, string>`	Resolved text of named items generated so far (usable as [ItemName] in expressions).
`Measurer` { get; init; }	`ITextMeasurer`	Text measurement for auto-fit (provided by the label, uses its fonts).
`Serial` { get; init; }	`int`	Zero-based printed-label number (records × copies) used by counters; -1 = same as `ZplContext.Index`.
`Unit` { get; }	`LabelUnit`

Methods

Method Signature	Returns	Description
# `Dots(double value)`	`int`
# `Dots(double value, LabelUnit? unit)`	`int`	Converts a value given in `unit` (null = the label unit) to dots.
# `DotsExact(double value, LabelUnit? unit = default)`	`double`	Exact (unrounded) dots for a value in `unit` (null = the label unit).
# `Evaluate(string expression)`	`string`
# `Lookup(string field, string format)`	`string`
# `Lookup(string field, string format, CultureInfo culture)`	`string`	Looks up and formats a field value with an explicit culture. Without a culture a `format` is applied with the invariant culture (labels don't change with the server's regional settings), an unformatted value is converted with the current culture. A format also applies to text that is a number ("12.5"), when it is a number format (see `NumericText`). The culture's standard calendar and plain spaces apply (`ExpressionEngine.StandardCalendar`), so the text is the same on every operating system.
# `PointsToDots(double pt)`	`int`	Font sizes are always given in points.