Expression Property (DataSetField)

Gets the Expression used to calculate the value of the current field.

If this expression is not empty, the field is a calculated field (as opposed to a data field).

Syntax

Visual Basic
C#

'Declaration
 
Public ReadOnly Property Expression As Expression

public Expression Expression {get;}

Remarks

This property is never null (Nothing in VB), it always returns an Expression object, which has empty Expression.Text by default. (A non-empty Text string indicates a calculated field.)

To specify an expression, set its Expression.Text property, or the DataSetField.ExpressionText property on the current field.

Either this property or DataSetField.DataField, but not both, should be defined on a DataSetField. In case both properties are defined, DataSetField.DataField is used, and Expression is ignored.

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

DataSetField Class
DataSetField Members