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ExpressionTextBox.ExpressionType Property

Gets or sets the expression type.

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

public Type ExpressionType { get; set; }

Property Value

Type: System.Type
Returns a Type that contains the expression type.

Setting the type is strongly recommended. If you do not set ExpressionType, you can’t use the ExpressionTextBox to bind to delegate types and you do not get validation from the hosted compiler. This compiler validation checks to see if the type of the entered expression matches the expected type, and displays a red box around the ExpressionTextBox when invalid data is entered into it on an activity designer.

.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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