ArcGIS Pro 3.3 API Reference Guide
ArcGIS.Core.Data Namespace / AttributedRelationshipClass Class / CreateRelationship Method

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    CreateRelationship Method (AttributedRelationshipClass)
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    Overload List
    OverloadDescription
    Creates a new relationship between the two specified rows and/or features. This method must be called on the MCT. Use QueuedTask.Run.  
    Creates a new relationship between the two specified rows and/or features. This method must be called on the MCT. Use QueuedTask.Run.  
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3 or higher.
    See Also