Package GxExpressions

Expressions are Javascript functions which are written as strings. When you provide an expression to the grid, the grid converts the expression into a function for you and then executes the function on the client.

Expressions can be used with the columns ValueGetterExpression, ValueFormatterExpression, ValueSetterExpression, ValueParserExpression.

For example you can add a virtual column to the grid and define a value getter expression to get the value of this column based on other two columns.

Expression can be as simple as "data.CDNumber" or more complex as the GxExpressionNumbersFormatter which can accepts parameters.

When working with expression key the following points in mind:

1. If your expression has the word return in it, then the grid will assume it is a multi-line expression and will not wrap it
2. If a ValueGetterExpression does not have the word 'return' in it, then the grid will insert the 'return' statement and the ';' for you
3. f your expression has many lines, then you will need to provide the ';' at the end of each line and also provide the 'return' statement.

Expression can access several predefined variables :

The class defines a grid expression to format bytes to one of the following measuring terms : ['KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']

The class defines a grid expression to format date/timestamps according to BBj supported masks

The class defines a grid expression to format numbers according to BBj supported masks

Alias for GxExpressionDateTimesFormatter