Introduction to Mail & Deploy Expressions

General

Expressions are formulas that can dynamically evaluate values at runtime; they allow to return static or dynamically calculated values.

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Example: Let's suppose you design a Report and you use a Filter Datasource Field Action to filter a field. The values to which you filter the field are expressions which can be used to either return constant values or dynamic values (e.g. the current year, the previous year etc.).

Syntax

Mail & Deploy expressions are written in Visual Basic .NET; however, there are many additional functions provided by Mail & Deploy which are not part of the standard Visual Basic .NET language.

Expression Fields

You can enter expressions in all expression fields which can be identified in the following way:

Web User Interface

An expression field in the web user interface (accessed by your web browser) looks like this:

The button in the expression editor can be used to insert a Placeholder or other values into the expression.
The button will open the expression editor which looks like this:

Report Designer

Expression fields in the Report Designer look like this:

By clicking the three-dot browse button you can open the expression editor for that expression.

The button in the expression editor can be used to insert a Placeholder or other values into the expression.