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ExpressionTextBox.Expression Property

Gets or sets the expression.

Namespace:  System.Activities.Presentation.View
Assembly:  System.Activities.Presentation (in System.Activities.Presentation.dll)

public ModelItem Expression { get; set; }

Property Value

Type: System.Activities.Presentation.Model.ModelItem
Returns a ModelItem that contains the expression.

Expression is always required. When using the [ExpressionTextBox] declaratively to bind to arguments, you must always use the ArgumentToExpressionConverter to bind the expression to the argument, setting the ConverterParameter to In or Out depending on the direction of the argument.

.NET Framework

Supported in: 4.5, 4

.NET Framework Client Profile

Supported in: 4

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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