C1.WPF.PrintDocument.4.6.2 Assembly / C1.C1Preview.DataBinding Namespace / DataSetField Class / Expression Property

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Expression Property (DataSetField)
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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
'Declaration
 
Public ReadOnly Property Expression As Expression
 
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 ExpressionText property on the current field.

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

See Also