TcxCustomDataController.OnFindCriteriaBeforeChange Event

Enables you to identify and track changes made to the data search criteria before they take effect on the data controller.

Declaration

property OnFindCriteriaBeforeChange: TcxDataFindCriteriaBeforeChangeEvent read; write;

Remarks

This event occurs every time:

• The FindCriteria.Text, FindCriteria.UseExtendedSyntax, or FindCriteria.Behavior property value changes.

• A FindCriteria.AddItem, FindCriteria.RemoveItem, or FindCriteria.ClearItems procedure call changes the list of search sources.

• An associated container control changes the list of items available for search operations (for instance, when a table item‘s Options.FilteringWithFindPanel property value changes in the VCL Grid control).

Refer to the TcxDataFindCriteriaBeforeChangeEvent procedural type description for detailed information on parameters accessible within an OnFindCriteriaBeforeChange event handler.