[]
Gets the number of legend entries in the collection.
Use this property to determine how many ILegendEntry objects are contained in the legend for a chart.
int Count { get; }
ReadOnly Property Count As Integer
worksheet.Range["A1:B3"].Value = new object[,] {
{"Name", "Value"},
{"A", 10},
{"B", 20}
};
IChart chart = worksheet.Shapes.AddChart(ChartType.ColumnClustered, 20, 20, 300, 200).Chart;
chart.SeriesCollection.Add(worksheet.Range["A1:B3"], RowCol.Columns, true, true);
int count = chart.Legend.LegendEntries.Count;