private void PieChartType_Load(object sender, System.EventArgs e)
{
// Set series font
chart1.Series[0].Font = new Font("Trebuchet MS", 8, FontStyle.Bold);
// Create pie chart helper class
pieHelper = new PieCollectedDataHelper(chart1);
pieHelper.CollectedLabel = String.Empty;
// Set current selection
this.loadingData = true;
comboBoxChartType.SelectedIndex = 0;
comboBoxCollectedPercentage.SelectedIndex = 1;
comboBoxsupplementalSize.SelectedIndex = 0;
this.loadingData = false;
// Update chart
UpdateChartSettings();
}
protected void Page_Load(object sender, System.EventArgs e)
{
// Create pie chart helper class
pieHelper = new PieCollectedDataHelper(Chart1);
pieHelper.CollectedLabel = String.Empty;
// Set chart type
Chart1.Series["Default"].ChartType = (SeriesChartType)Enum.Parse(typeof(SeriesChartType), ChartTypeList.SelectedItem.Text, true);
// Populate series data
double[] yValues = { 65.62, 2.1, 85.73, 11.42, 34.45, 75.54, 5.7, 4.1 };
string[] xValues = { "France", "Japan", "USA", "Italy", "Germany", "Canada", "Russia", "Spain" };
Chart1.Series["Default"].Points.DataBindXY(xValues, yValues);
// Remove supplemental series and chart area if they already exsist
if (Chart1.Series.Count > 1)
{
Chart1.Series.RemoveAt(1);
Chart1.ChartAreas.RemoveAt(1);
// Reset automatic position for the default chart area
Chart1.ChartAreas["ChartArea1"].Position.Auto = true;
}
Chart1.Series[0].Points[Chart1.Series[0].Points.Count - 1].Color = Color.FromArgb(202, 107, 75);
// Check if supplemental chart should be shown
if (!HideSupp.Checked)
{
Chart1.Series["Default"]["PieLabelStyle"] = "Inside";
// Set the percentage of the total series values. This value determines
// if the data point value is a "small" value and should be shown as collected.
pieHelper.CollectedPercentage = double.Parse(CollectedPercentage.SelectedItem.Text);
// Indicates if small segments should be shown as one "collected" segment in
// the original series.
pieHelper.ShowCollectedDataAsOneSlice = checkBoxCollect.Checked;
// Size ratio between the original and supplemental chart areas.
// Value of 1.0f indicates that same area size will be used.
if (SupplementalChartSize.SelectedIndex == 0)
{
pieHelper.SupplementedAreaSizeRatio = 0.9f;
}
else if (SupplementalChartSize.SelectedIndex == 1)
{
pieHelper.SupplementedAreaSizeRatio = 1.0f;
}
else if (SupplementalChartSize.SelectedIndex == 2)
{
pieHelper.SupplementedAreaSizeRatio = 1.1f;
}
// Set position in relative coordinates ( 0,0 - top left corner; 100,100 - bottom right corner)
// where original and supplemental pie charts should be placed.
pieHelper.ChartAreaPosition = new RectangleF(3f, 3f, 93f, 96f);
// Show supplemental pie for the "Default" series
pieHelper.ShowSmallSegmentsAsSupplementalPie("Default");
}
else
{
Chart1.Series["Default"]["PieLabelStyle"] = "Ellipse";
Chart1.Series["Default"].LabelBackColor = Color.Empty;
}
// Enable/Disable controls
ChartTypeList.Enabled = !HideSupp.Checked;
CollectedPercentage.Enabled = !HideSupp.Checked;
SupplementalChartSize.Enabled = !HideSupp.Checked;
checkBoxCollect.Enabled = !HideSupp.Checked;
}
