Variable Definition

• Must be unique within the containing Data Field Container.
• Use only letters, numbers, and underscores. The name must start with a letter or underscore.
• This name is used to reference the variable in expressions and throughout the configuration.

Can be one of the following types:

• Select the type that matches the expected result of the 'Expression'.
• Supported types include: Boolean, DateTime, Decimal, Double, Guid, Int16, Int32, Int64, Object, Single, String, and TimeSpan.
• The type determines how the value is evaluated, validated, and formatted.

• Set to true if the 'Expression' returns a collection of values (e.g., a list of numbers or strings).
• Set to false for single-value variables.
• This affects how the variable is referenced and used in expressions and downstream logic.

• Use Grooper's expression syntax to reference fields, other variables, or built-in functions.
• The result of the expression must be compatible with the selected 'Type' (and 'Is Array' if enabled).
• Expressions can include arithmetic, string manipulation, conditional logic, and more.
• Example: FieldA + FieldB, Items.Where(x => x.Amount > 0).Sum(x => x.Amount), DateTime.Now

• Use this property to document the purpose, logic, or usage of the variable.
• Descriptions appear in the property grid and help other users understand your configuration.

Use this property to control how numeric values are displayed for the variable. The format string should be a standard or custom .NET numeric format string.

If left blank, default formatting is applied.

Formatting Examples

For more details, see Standard Numeric Format Strings and Custom Numeric Format Strings.

Use this property to control how date and time values are displayed for the variable. The format string should be a standard or custom .NET date/time format string.

Formatting Examples

For more details, see Standard DateTime Formats and Custom DateTime Formats.