WcfInstantFeedbackSource.FixedFilterString Property

Specifies a string representation of an expression used to filter objects on the data store side. This filter is never affected by bound data-aware controls.

Namespace: DevExpress.Data.WcfLinq

Assembly: DevExpress.Data.v20.1.dll


public string FixedFilterString { get; set; }
Public Property FixedFilterString As String

Property Value

Type Default Description


A string specifying the filter expression applied to data on the data store side.


For information and examples on how to create filter expressions, see Criteria Language Syntax.

You can also specify filter criteria via the WcfInstantFeedbackSource.FixedFilterCriteria property. The FixedFilterString and WcfInstantFeedbackSource.FixedFilterCriteria properties are synchronized. When a filter expression is assigned to the FixedFilterString property, an equivalent CriteriaOperator is created and assigned to the WcfInstantFeedbackSource.FixedFilterCriteria property. When a CriteriaOperator is assigned to the WcfInstantFeedbackSource.FixedFilterCriteria property, the FixedFilterString property is modified accordingly.

A data-aware control bound to a WcfInstantFeedbackSource can provide its own filtering. Changing the filter via the data-aware control does not modify the FixedFilterString property and vice versa.

See Also