Hello Vladislav,
Thank you for writing back.
In this case, it is necessary to invalidate the chart with the new date. Instead of using Application.
DoEvents(), you can call the
InvalidateMeasure and
UpdateLayout methods of the
ChartElement:
private void radButton1_Click(object sender, EventArgs e)
{
RadChartView radChartView1 = new RadChartView();
radChartView1.ShowLegend = true;
Random rand = new Random();
string filePath;
for (int i = 0; i < 5; i++)
{
radChartView1.Series.Clear();
LineSeries lineSeries = new LineSeries();
lineSeries.LegendTitle = "S " + i;
lineSeries.DataPoints.Add(new CategoricalDataPoint(rand.Next(1, 20), "Jan"));
lineSeries.DataPoints.Add(new CategoricalDataPoint(rand.Next(1, 20), "Apr"));
lineSeries.DataPoints.Add(new CategoricalDataPoint(rand.Next(1, 20), "Jul"));
lineSeries.DataPoints.Add(new CategoricalDataPoint(rand.Next(1, 20), "Oct"));
radChartView1.Series.Add(lineSeries);
radChartView1.ChartElement.InvalidateMeasure();
radChartView1.ChartElement.UpdateLayout();
filePath = @"..\..\exprtedChart" + i + ".png";
radChartView1.ExportToImage(filePath, radChartView1.Size, System.Drawing.Imaging.ImageFormat.Png);
}
}
In order to avoid the visual changing of the chart data, use a dummy
RadChartView instance as in my sample code snippet.
I hope this information helps. If you have any additional questions, please let me know.
Regards,
Dess
Telerik by Progress
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