The IExpressionStringHandler interface contains methods implementing events that occur on converting expression elements.
Interface methods must be redetermined in the custom class that inherits from the Object class and this interface. If only part of events must be redetermined and traced, the class can be inherited from the ExpressionStringHandler class.
The created class instance is an event handler used on working with expressions and can be specified as a value of the IExpression.StringHandler property. Events occur on setting or reading an expression and can be used to trace whether the expression is correctly parsed into terms and text.
| Method name | Brief description | |
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The OnTerm method implements an event that occurs on addressing an expression element that refers to some data (or contains data). | |
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The OnText method implements an event that occurs on addressing an element corresponding to character part of the expression. |
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