Hi, I'm not sure how to use the Source and Rel attributes of .Value property of a json operation object. Below is my code in vb.net.
JDocOpearion = New JsonPatchOperation
With JDocOpearion
.Path = "/relations/-"
.Operation = Microsoft.VisualStudio.Services.WebApi.Patch.Operation.Add
Dim link = New WorkItemLink
.Value = link.Rel = "System.LinkTypes.Hierarchy-Reverse" _
& link.Source.Url = witlink.Source.Url
End With