How to place a custom label on a data point on a chart in vb.net? -

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i know simple one, maybe having trouble asking question(searching same question.) simple line of code:

chart1.series("drawing").points.addxy((xcoord(ya, yb)), ((ycoord(ya, yb))))

how add custom label point on chart such "1" or "point 1."?

first, must know target point.

-either :

    dim targetpoint int32 = 5     chart1.series("drawing").points.item(targetpoint)......     ' targetpoint valid n-th index of point.

-or :

    dim targetpoint int32     targetpoint = chart1.series("drawing").points.addxy(....)

then, use targetpoint edit label :

    chart1.series("drawing").points.item(targetpoint).label = "lalalilala"

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