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this.chart1.VisibleRangeChanged += Chart1_VisibleRangeChanged;
private void Chart1_VisibleRangeChanged(object sender, EventArgs e)
{
//Maximum value of x axis while zooming
var maxValue = chart1.PrimaryXAxis.VisibleRange.Max;
//Mimimum value of x axis while zooming
var minValue = chart1.PrimaryXAxis.VisibleRange.Min;
//convert double value to DateTime value
DateTime max = DateTime.FromOADate(maxValue);
DateTime min = DateTime.FromOADate(minValue);
MessageBox.Show("Max:" + max + "" + "Min:" + min);
} |