Overview

Create an expression that consists of an operand – either a fixed value or one of your product model's modeling variables – and an optional operator. Expressions are evaluated according to the normal rules of operator precedence.

For amount-based and percentage-based price adjustments, the price combination becomes effective if the expression evaluates to 'true' during item configuration.

Code

Use this tab to write the expression in X++ code directly.

Validate price combination

Test the syntax of your expression.

Transfer to program code

Transfer an expression from the Overviewtab to the Codetab to work with it directly as X++ code.

Note
If the Codefield is not empty, whatever it contains will be the active version of the expression, regardless of what you enter on the Overviewtab. Therefore, if you want to revert to editing the expression on the Overviewtab, you must delete the contents of the Codefield.

Type

Select whether the operand specified in the Textfield is a fixed value or a variable.

Text

Specify an operand in the logical expression that you are building. The operand can be either a fixed value or one of your product model's modeling variables, depending on the choice made in the Typefield. If you specify a modeling variable that is an array, you must also specify the array index in the Indexfield.

When the Typefield is set to Variable, you can obtain a list of available variables from the lookup fields in the Textfield.

NoteWhen the Typefield is set to Value, you have to consider the data type of the values you enter. Text values must be enclosed in single quotation marks ('). Otherwise the compiler will interpret the text as a variable name, and you will receive a compilation error when the rule is being validated. However, numeric values should not be enclosed in quotation marks.

Index

Specify the array index if the following conditions are true:

• The operand in this line is a variable, as you selected in the Typefield.

• The variable that you specified in the Textfield is an array.

NoteThe array index is the position number of the specific array element that is relevant for the current expression.

Operator

Specify an operator that connects the current line with the next line to form a logical expression. The following operators are available and are listed in the order of operator precedence:

Code

Write the expression in X++ code directly. The expression must be formed as an X++ method that returns an integer value (for amount-based and percentage-based adjustments) or a value of the type real (for calculated adjustments). To see how this basic syntax works, you can create an expression on the Overviewtab and then transfer it to the Codetab.

When you edit an expression on the Codetab, you can make it as sophisticated as you like by using all the tools of X++ language of Microsoft Dynamics AX. For a description of the X++ language, see the Microsoft Dynamics AX Developer's Guide.

To reference one of your product model's variables, use the following syntax, varMap ('variable_name',array_index), where variable_name is the name of the variable and array_index is the index of the array element you want.

Note
The first element is always indexed as 1, even when no other elements exist.

For example, to reference a variable called c_doors that is not an array variable, you should type it as varMap('c_doors',1)