'宣言 Public ReadOnly Property Gantt As ChartGantt
'使用法 Dim instance As Chart2DGroup Dim value As ChartGantt value = instance.Gantt
public ChartGantt Gantt {get;}
'宣言 Public ReadOnly Property Gantt As ChartGantt
'使用法 Dim instance As Chart2DGroup Dim value As ChartGantt value = instance.Gantt
public ChartGantt Gantt {get;}