TTMSFNCFilterViewExpressions Class

Stores filter expressions and synchronizes them with generated filter structure items.

API unit family: TMSFNCFilterView Inherits from: TTMSFNCOwnedCollection

Syntax

TTMSFNCFilterViewExpressions = class(TTMSFNCOwnedCollection)

Name	Description
DefaultFilterProperties	Gets or sets default field and operator settings used for generated expressions.
FilterItem	Gets the filter structure item currently associated with the collection.
Items	Gets or sets an expression by index.

Name	Description
Add	Adds a new expression item to the collection.
AddFilterItem	Adds or updates a filter item for the expression that matches the specified property value text.
AddOrUpdateExpression	Adds or updates an expression with a typed filter value and explicit operator.
BeginUpdate	Begins a batched update of expression items and generated filter items.
EndUpdate	Ends a batched update and applies pending expression changes.
GetExpressionByPropertyValue	Returns the expression that matches a property value.
Insert	Inserts a new expression item at the specified index.
RemoveFilterItem	Removes the filter item currently associated with the collection.
UpdateFilterItem	Updates the current filter item using the expression that matches the specified property value.

Name	Description
OnAddFilterItem	Occurs before a generated filter item is added.
OnChanged	Occurs when the collection or one of its expressions changes.
OnExpressionNotFound	Occurs when a property value does not match an existing expression.
OnRemoveFilterItem	Occurs after the current generated filter item is removed.
OnSetFilterItem	Occurs before resolved expression parameters are applied to a filter item.