Filtering data

Filters are used to select specific records and groups in a report by applying selection formulas to the data. This section explains how to use the DataDefController class to interact with filters in a report.

Classes used for filtering data

• CrystalDecisions.ReportAppServer.Controllers.FilterController

Modifies record, saved data, and group selection formulas to filter data in a report. Access the appropriate type of filter with the DataDefController.RecordFilterController, DataDefController.SavedDataFilterController , and DataDefController.GroupFilterController properties.

• CrystalDecisions.ReportAppServer.DataDefModel.Filter

Represents a filter in a report and allows you to set the formula string.

• CrystalDecisions.ReportAppServer.DataDefModel.FilterItems

An ordered array of FieldRangeFilterItem and OperatorFilterItem objects representing the individual components of a formula for a particular filter.

In this section:

• Filtering report data with selection formulas
• Understanding the Filter class
• To create and add a new filter
• Modifying an existing filter formula

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