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ColumnBase.UnboundExpression Property

Gets or sets an expression used to evaluate values for this column if it is not bound to a data source field.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v23.2.Core.dll

NuGet Package: DevExpress.Wpf.Grid.Core


public string UnboundExpression { get; set; }

Property Value

Type Default Description
String String.Empty

A String that specifies an expression used to evaluate values for this column.


The GridControl supports bound and unbound columns:

  • Bound columns obtain their data from data fields in a grid’s data source.
  • Unbound columns are not bound to any field in the data source. These columns must be populated manually by handling the GridControl.CustomUnboundColumnData event or using the UnboundExpression property.
<dxg:GridColumn FieldName="DiscountAmount"
                UnboundDataType="{x:Type sys:Decimal}"
                UnboundExpression="Round([UnitPrice] * [Quantity] - [Total])">

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


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See Also