Clear ZedGraph Data

Question

I am using ZedGraph on a windows form to display bar chart. Following code executes when user click on a button.

zg1.GraphPane.AddBar("Series", null, y, Color.Red);

It adds an extra bar every time user click on button. I am looking for a way to reset or clear data already in chart.

How can i do that????

Ahoufe

Answer 1

zg1.GraphPane.CurveList.Clear();
zg1.GraphPane.GraphObjList.Clear();

Mitigate

To redraw the graph you may also need to call zg1.Invalidate() – Mitigate

Why are CurveList and GraphObjList both cleared? How would it work if I tried zg1.GraphPane.Points = null; or zg1.GraphPane.Points = newPointPairList; ? Understanding this would help me more than trial and error on my end. – Thermistor

Answer 2

don't forget to give zg1.Refresh() if never see the result if you don't refresh.

Byrom

This does not answer the question. A comment at best, but something I think the OP is already aware of anyway – Unthrone

Answer 3

No Need to clear anything, the think you need to put at the end of the code after generating the graph is zg1.Refresh()

Justinjustina