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            Calculated fields

            The QuickReports Designer provides the capability to create calculated fields that allow you to apply complex expressions to data fields that are obtained from the QuickReport's data source. You can use these fields in data visualizations as regular source table fields.

            Creating a Calculated Field

            You can add create new calculated field based on the existing data source fields. To create a calculated field, right click on the data source area and select Add calculated field, or use corresponding button in the Ribbon's Data Source tab:



            This invokes the Expression Editor dialog, which allows you to specify an expression that will be used to obtain calculated field values. Here, you can construct the required expression.


            You can use the following elements in expressions.

            • Functions
            • Operators
            • Columns
            • Constants
            • Parameters

            After the expression has been specified, click OK. This displays a new calculated field in the data source structure. Now you can specify the required calculated field type, change its default name, etc.

            Editing a Calculated Field

            To edit a calculated field, use its context menu.


            This menu contains the following items.

            Item

            Description

            Edit Expression...
            Invokes the Expression Editor dialog, which allows you to change an expression for an existing calculated field.
            Field Type
            Specifies the type of the calculated field.
            Note

            Note that the type of a newly created calculated field is detected automatically based on the type of values returned by the specified expression.

            Rename
            Changes the calculated field name.
            Delete
            Removes the existing calculated field from the data source.


            SmallBestOriginalRemove
            Updated: 25 Mar 2018 12:34 PM
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