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C1.PrintDocument.4.5.2 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).

    Public ReadOnly Property Expression As Expression
    public Expression Expression {get;}

    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