WPF/MS - Set Cursor Position with only X value

[Flow75]

Hello,

I've a WPF Cursor in a WPF Graph.

I would like to set the cursor X position at a value but it requests both X, Y value.

Is there a way to set the cursor with only the X position ?

Thanks

ps : is possible, I would like not to have to compute the Y position. 🙂

[phansen]

If you are only interested in controlling the X value, you might consider switching to MultiPlotCursor: it will use the host graph's horizontal axis by, allowing you to set the AxisValue property directly to your target X value, and the Values property will report all intersecting plot data values. To limit this to a single plot like Cursor, you can configure the AllowablePlots property accordingly. If you are trying to traverse plot values in sequence, the multi-plot cursor also has MoveNext/MovePrevious methods, without needing to calculate the "next X" value yourself.

If Cursor is a better fit for your scenario, you can use the SetDataPosition method and specify it to search only in the horizontal direction when finding the closest plot value:

var x = ...; // your target X value
var y = this.cursor.Value[1]; // existing Y value
this.cursor.SetDataPosition(new[] { x, y }, SearchDimensions.Horizontal);