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Microsoft Dynamics NAV 2015 Professional Reporting by Steven Renders

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Simple and complex expressions

A simple expression is a reference or a pointer to an item in one of the collections, for example, a field from the dataset. A simple expression is visualized in the textbox using ([]) brackets.

A complex expression is a combination of simple expressions and operators or functions. As soon as you use a complex expression for the Value property of a textbox, the textbox will contain <<Expr>> when you look at it in the report layout, as you can see in the following example:

Simple and complex expressions

For this reason, I recommend that you give every textbox a proper name, so that you can see in its properties what it actually contains, as in the ...

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