public ChartTrendline Add(ExcelTrendLine type)
{
ExceptionHelper.TrueThrow <ArgumentException>(this._Serie.Chart.IsType3D() || this._Serie.Chart.IsTypePercentStacked() ||
this._Serie.Chart.IsTypeStacked() || this._Serie.Chart.IsTypePieDoughnut(), "趋势线并不适用于3D图，堆叠图，饼图或圆环图");
ChartTrendline result = new ChartTrendline(type);
this._List.Add(result);
return(result);
}
public ChartTrendline(ExcelTrendLine type)
{
this._Type = type;
}
