ImportDefinition.Constraint Property
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Gets an expression that defines conditions that the import must satisfy to match the import definition.
Namespace: System.ComponentModel.Composition.Primitives
Assembly: System.ComponentModel.Composition (in System.ComponentModel.Composition.dll)
Syntax
'Declaration
Public Overridable ReadOnly Property Constraint As Expression(Of Func(Of ExportDefinition, Boolean))
public virtual Expression<Func<ExportDefinition, bool>> Constraint { get; }
Property Value
Type: System.Linq.Expressions.Expression<Func<ExportDefinition, Boolean>>
An expression that contains a Func<T, TResult> object that defines the conditions an Export must satisfy to match the ImportDefinition.
Exceptions
| Exception | Condition |
|---|---|
| NotImplementedException | The property was not overridden by a derived class. |
Remarks
Overrides of this property should never return nulla null reference (Nothing in Visual Basic).
Version Information
Silverlight
Supported in: 5, 4
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.