Class ColorHelper

Provides utility methods for parsing and converting color values from various input formats. Supports named colors, HEX strings, RGB/ARGB values, and ARGB integer representations.

Inheritance
System.Object
ColorHelper
Namespace: FastReport.Utils
Assembly: FastReport.Base.dll
Syntax
public static class ColorHelper

Methods

FromObject(Object, Color)

Converts an object of various types to a . If the conversion fails, returns a fallback color (default: ).

Declaration
public static Color FromObject(object value, Color fallback = null)
Parameters
Type Name Description
System.Object value

The input value. Supported types:

  • - returned as-is.
  • System.Int32 - interpreted as an ARGB value.
  • System.String - parsed using FromString(String).
Any other type treated as invalid.
Color fallback

The color to return if conversion fails. If not specified, defaults to .
Returns
Type Description
Color

A valid instance. Never returns null.

FromString(String)

Parses a string representation of a color into a structure.

Declaration
public static Color? FromString(string input)
Parameters
Type Name Description
System.String input

The string to parse. Can be:

  • A named color (e.g., "Red", "DarkBlue")
  • A HEX color in formats "#RGB", "#RRGGBB", or "#AARRGGBB" (e.g., "#F00", "#FF0000", "#80FF0000")
  • An RGB or ARGB values as comma-separated integers (e.g., "255,0,255" or "128,255,0,255")
  • An ARGB integer as a decimal string (e.g., the result of Color.ToArgb().ToString())
Returns
Type Description
System.Nullable<Color>

A if parsing succeeded; otherwise, null.
Remarks

The method processes input in the following order: