I may be asking the wrong question, but what I need is to add a "Guide Line" to my windows form chart. In other words I have a chart with a simple data series and I need to draw a line on the y axis at the passing score, or 80%. I don't want to add a second series as the first series has an undetermined number of data points. Is there a simple way to simply draw one line on the y axis? The dashed line below is what I am shooting for(it does not need the arrows).
100|
|
90|
| o
80|<----------------------->
|
70| o o
|
60| o
| o o
50|o o
|_________________________
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