I find no examples for it.
The only example I could find for labels uses a featurelayer.
I have always just got the graphics extent and then the extents center and created a graphic to add to a GraphicsLayer using a TextSymbol as the points Symbol.
That would almost work, but in many cases, that will result in a point that isn't even on the polyline.
Is there no way to use a labelplacement like "above-along".
Then you can get the Polyline and extract one of it's points using the getPoint method
I take it there is no way to make "above-along" work, then.
Nope no such property
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