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LookUpEditBase.FilterCriteria Property

Gets or sets the filter expression applied to the LookUpEditBase.ItemsSource. This is a dependency property.

Namespace: DevExpress.Xpf.Editors

Assembly: DevExpress.Xpf.Core.v22.2.dll

NuGet Package: DevExpress.Wpf.Core

Declaration

public CriteriaOperator FilterCriteria { get; set; }

Property Value

Type Description
CriteriaOperator

A CriteriaOperator descendant that represents an external filter expression.

Remarks

The LookUpEdit control can filter data from an ItemSource before displaying. You can use the FilterCriteria property to set a Filter Expression. You can create your filter expression when the editor’s ItemSource is a complex type object (it has its own properties). i.e., Contains([SomeProperty], '123')

You can use the DisplayColumn value to create a filter expression when the editor’s item source is a simple objects collection:

LookUpEdit.FilterCriteria = new FunctionOperator(
  FunctionOperatorType.EndsWith, 
  new OperandProperty("DisplayColumn"), 
  new OperandValue("ask0")
);

listbox-filter-criteria

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

How to: Populate ComboBoxEdit’s ItemsSource Based on Values From Other Cells

The GitHub example illustrates how to dynamically construct a filter depending on values from other cells.

View Example

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the FilterCriteria property.

Note

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See Also