OnAxesChanged issue when resetting datas !

HI, i got an interface with 3 graphs in same time. I added the OnAxesChanged so they move together on the X axe ! My problem comes when im trying to change the data while using this functionality (Clear the array and feedback new datas). Example : My graph data are based on 5min, when i change it to 1min and the OnAxesChanged is called, there are no more graph rendered. When i comment OnAxesChanged it works fine ?? there is a render in the OnAxesChanged method and i got others FormsPlot.Render after the datas is changed ! Any ideas ?

protected override void OnLoad(EventArgs e)
{
    FormsPlots = new List<FormsPlot>{ formsPlot1, formsPlot2, formsPlot3 };
    foreach (var fp in FormsPlots)
        fp.AxesChanged += OnAxesChanged;
}

private void OnAxesChanged(object sender, EventArgs e)
{
    FormsPlot changedPlot = (FormsPlot)sender;
    var newAxisLimits = changedPlot.Plot.GetAxisLimits();

    foreach (var fp in FormsPlots)
    {
        if (fp == changedPlot)
            continue;

        // disable events briefly to avoid an infinite loop
        fp.Configuration.AxesChangedEventEnabled = false;
        fp.Plot.SetAxisLimitsX(newAxisLimits.XMin, newAxisLimits.XMax);
        **fp.Render();**
        fp.Configuration.AxesChangedEventEnabled = true;
    }
}

After some tests… I just saw that the time line reset to 1899 i dont know why probably the changedPlot.Plot.GetAxisLimits() is empty ??

[StendProg]

Hi @ticool, I assumed that the problem is related to how exactly you update the data, when you call Render on an empty object (After Clear() or something similar) for which it is impossible to calculate the boundaries, the default axis values are used. 0 recalculated in ODateTime just gives the year 1899. Maybe you should just somehow bypass this moment so that the axis change event is not called for an empty chart. it’s hard to say something more without seeing the update process itself, in any case I’m glad that you managed to solve the problem.

[ticool]