There are two questions to ask:
1, the Chart has been finished, there are three Series, some point is concentrated, to achieve when the mouse moves to a certain point, the point Mark, now found no separate shows a point Mark, is there a method to realize ah ~ ~

2, the Chart is good, want to get some points on the screen the location of the Series, not with the Series - & gt; Abscissa XValue [] get the point of value, and the current mouse position would not be at this point, because I want to use the brush to draw a gray line, would use the MoveTo (X, Y), LineTo (X1, Y1) these two functions to draw, don't know that I'm clear count ~

O great god
Thank you very much! ~

CodePudding user response:

For your second question, found the CalcXPosValue this method ~

CodePudding user response:

I think the first one should have method, so will be more practical
O teach ah ha ~

CodePudding user response:

For help,
Don't need to draw a hint of prompt box?

CodePudding user response:

With ah, also sent a similar post just now