public static void ClearFast(this ChartAreaCollection collection)
{
collection.SuspendUpdates();
while (collection.Count > 0)
{
collection.RemoveAt(collection.Count - 1);
}
collection.ResumeUpdates();
}
public Chart()
{
BackColor = Color.White;
ChartAreas = new ChartAreaCollection();
Series = new SeriesCollection();
}
/// <summary>
/// Fill in the list of data series names.
/// </summary>
/// <param name="context">Descriptor context.</param>
/// <returns>Standart values collection.</returns>
public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
{
ArrayList values = new ArrayList();
values.Add(Constants.NotSetValue);
ChartAreaCollection areaCollection = null;
string areaName = "";
if (context != null && context.Instance != null)
{
if (context.Instance is Legend)
{
Legend legend = (Legend)context.Instance;
if (legend.Common != null && legend.Common.ChartPicture != null)
{
areaCollection = legend.Common.ChartPicture.ChartAreas;
}
}
else if (context.Instance is ChartArea)
{
ChartArea area = (ChartArea)context.Instance;
if (area.Common != null && area.Common.ChartPicture != null)
{
areaCollection = area.Common.ChartPicture.ChartAreas;
areaName = area.Name;
}
}
else if (context.Instance is Title)
{
Title title = (Title)context.Instance;
if (title.Chart != null && title.Chart.chartPicture != null)
{
areaCollection = title.Chart.chartPicture.ChartAreas;
}
}
else if (context.Instance is Annotation)
{
Annotation annotation = (Annotation)context.Instance;
if (annotation.Chart != null && annotation.Chart.chartPicture != null)
{
areaCollection = annotation.Chart.chartPicture.ChartAreas;
}
}
else if (context.Instance is IServiceProvider)
{
IServiceProvider provider = context.Instance as IServiceProvider;
Chart chart = provider.GetService(typeof(Chart)) as Chart;
if (chart != null)
{
areaCollection = chart.ChartAreas;
}
}
else if (context.Instance is Array)
{
if (((Array)context.Instance).Length > 0 && ((Array)context.Instance).GetValue(0) is Legend)
{
Legend legend = (Legend)((Array)context.Instance).GetValue(0);
if (legend.Common != null && legend.Common.ChartPicture != null)
{
areaCollection = legend.Common.ChartPicture.ChartAreas;
}
}
else if (((Array)context.Instance).Length > 0 && ((Array)context.Instance).GetValue(0) is ChartArea)
{
ChartArea area = (ChartArea)((Array)context.Instance).GetValue(0);
if (area.Common != null && area.Common.ChartPicture != null)
{
areaCollection = area.Common.ChartPicture.ChartAreas;
}
}
else if (((Array)context.Instance).Length > 0 && ((Array)context.Instance).GetValue(0) is Title)
{
Title title = (Title)((Array)context.Instance).GetValue(0);
if (title.Chart != null && title.Chart.chartPicture != null)
{
areaCollection = title.Chart.chartPicture.ChartAreas;
}
}
else if (((Array)context.Instance).Length > 0 && ((Array)context.Instance).GetValue(0) is Annotation)
{
Annotation annotation = (Annotation)((Array)context.Instance).GetValue(0);
if (annotation.Chart != null && annotation.Chart.chartPicture != null)
{
areaCollection = annotation.Chart.chartPicture.ChartAreas;
}
}
}
}
if (areaCollection != null)
{
foreach (ChartArea area in areaCollection)
{
if (area.Name != areaName)
{
values.Add(area.Name);
}
}
}
return(new StandardValuesCollection(values));
}