CODEWITHSUNDEEP
c#winformschartsmschart
Kuthar
Kuthar

Reputation: 43

How to control Zoom In and Zoom Out in Windows form Chart by adding Zoom buttons

How to control Zoom In and Zoom Out in Windows Forms Chart by adding ZoomIn and ZoomOut button

chart1.ChartAreas["draw"].AxisY.ScaleView.ZoomReset();

Upvotes: 1

Views: 2610

Answers (1)

TaW
TaW

Reputation: 54433

Zoom-in button:

Axis ax = chart1.ChartAreas[0].AxisX;
ax.ScaleView.Size = double.IsNaN(ax.ScaleView.Size)?   
                    (ax.Maximum - ax.Minimum) / 2 : ax.ScaleView.Size /= 2;

Zoom-out:

Axis ax = chart1.ChartAreas[0].AxisX;
ax.ScaleView.Size = double.IsNaN(ax.ScaleView.Size)?   
                    ax.Maximum : ax.ScaleView.Size *= 2;
if (ax.ScaleView.Size > ax.Maximum - ax.Minimum)
{
    ax.ScaleView.Size = ax.Maximum;
    ax.ScaleView.Position = 0;
}

Upvotes: 3

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