The Exontrol eXPression Component is a powerful syntax-aware editor designed to help users define, edit, view, and evaluate expressions interactively. Many Exontrol UI components support dynamic formatting through arithmetic expressions - for example, using the Column.FormatColumn property to control how a column's data is displayed. If the expression is set to "currency(value)", values like 1234 will be rendered as $1,234.00. With the eXPression component, users can visually construct and validate expressions, instantly check for syntax correctness, and evaluate results using different input values. This makes it an ideal tool not only for debugging or prototyping expressions, but also as a configurable end-user editor embedded directly into your application. By integrating eXPression, developers provide a more interactive and error-resistant way for users to work with custom formatting, filtering, or logic-driven display rules within any Exontrol-powered solution.

Features include:

1. Syntax Highlighting & Validation

• Highlighting support for keywords, functions, numbers, strings, dates, result
• Different colors while the expression is not syntactically correct

2. Editing & Input Support

• Overstrike/Overtype or Insert mode support
• Find, Replace, Incremental Search support
• Code Completion Support
• Context Sensitive support

3. Customization & Extensibility

• Custom Operators support

4. Drag and Drop Support

• OLE Drag and Drop support

 

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