/// <summary>
/// 将类型转换成字符串
/// </summary>
/// <param name="context"></param>
/// <param name="culture"></param>
/// <param name="value"></param>
/// <param name="destinationType"></param>
/// <returns></returns>
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
if (destinationType == typeof(string) && value != null)
{
CPoint point = value as CPoint;
string str = string.Format($"{point.X},{point.Y}");
return(str);
}
if (destinationType == typeof(InstanceDescriptor) && value != null)
{
ConstructorInfo constructorInfo = typeof(CPoint).GetConstructor(new Type[] { typeof(int), typeof(int) });
CPoint point = value as CPoint;
return(new InstanceDescriptor(constructorInfo, new object[] { point.X, point.Y }));
}
return(base.ConvertTo(context, culture, value, destinationType));
}
public LineSegmentBase(CPoint _startPoint, CPoint _endPoint)
{
startPoint = _startPoint;
endPoint = _endPoint;
}
public LineSegment(CPoint _startPoint, CPoint _endPoint) : base(_startPoint, _endPoint)
{
}