c# - ZedGraph: Won't work under button click event -


i windows forms project in vs2012 zedgraph control , button. have following code:

double[] testing = { 0, 1, 2, 3, 4, 5 }; lineitem myline = zedgraphcontrol1.graphpane.addcurve("testing", testing, testing, color.red); zedgraphcontrol1.axischange();

when have under form_load event, line chart generated should be. if move code under button click event, nothing happens. have blank graph.

i've made sure event firing , when under graphpane.curvelist there curve expected values.

can suggest reason why might happening?

maybe have solution problem. have tried solve , solution simple. @ end of code try add :

double[] testing = { 0, 1, 2, 3, 4, 5 }; lineitem myline = zedgraphcontrol1.graphpane.addcurve("testing", testing, testing, color.red); zedgraphcontrol1.axischange();  zedgraphcontrol1.refresh()

but make changes after button clicking. styling have write code in form_load or in sub.


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