Tag

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.v20.1.Core.dll

Declaration

[DefaultValue("")]
public string UnboundExpression { get; set; }
<DefaultValue("")>
Public Property UnboundExpression As String

Property Value

Type Default Description
String

String.Empty

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

Remarks

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"
                UnboundType="Decimal"
                UnboundExpression="Round([UnitPrice] * [Quantity] - [Total])">
</dxg:GridColumn> 

Implements

DevExpress.Xpf.GridData.IColumnInfo.UnboundExpression
See Also