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AddInContractAttribute Class

Identifies an object as a add-in contract segment of the pipeline.

Namespace:  System.AddIn.Pipeline
Assembly:  System.AddIn.Contract (in System.AddIn.Contract.dll)

[AttributeUsageAttribute(AttributeTargets.Interface)]
public sealed class AddInContractAttribute : Attribute

The Rebuild and Update methods, which maintain the store of information about available pipeline segments, use this attribute to identify a contract.

This attribute should be used only on types that activate the segments of the pipeline. Types that represent objects passed between the host and the add-in do not need this attribute.

The following example identifies a contract.

// The AddInContractAttribute identifes this pipeline segment as a  
// contract.
[AddInContract]
public interface ICalc1Contract : IContract
{

System.Object
  System.Attribute
    System.AddIn.Pipeline.AddInContractAttribute

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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

.NET Framework

Supported in: 3.5

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