public static ITypeDescriptor GetCollectionItemType(ITypeDescriptor type)
{
// handle IEnumerables
var iEnumerableType = type.TryGetArrayElementOrIEnumerableType();
if (iEnumerableType != null)
{
return iEnumerableType;
}
// handle GridViewDataSet
if (type.IsAssignableTo(new ResolvedTypeDescriptor(typeof(IGridViewDataSet))))
{
var itemsType = type.TryGetPropertyType(nameof(IGridViewDataSet.Items));
return itemsType.TryGetArrayElementOrIEnumerableType();
}
throw new NotSupportedException($"The type '{type}' is not a collection or a IGridViewDataSet!");
}
public static ITypeDescriptor GetCollectionItemType(ITypeDescriptor type)
{
// handle IEnumerables
var iEnumerableType = type.TryGetArrayElementOrIEnumerableType();
if (iEnumerableType != null)
{
return(iEnumerableType);
}
// handle GridViewDataSet
if (type.IsAssignableTo(new ResolvedTypeDescriptor(typeof(IBaseGridViewDataSet))))
{
var itemsType = type.TryGetPropertyType(nameof(IBaseGridViewDataSet.Items));
return(itemsType.TryGetArrayElementOrIEnumerableType() ?? throw new Exception("This is strange and should not happen. IBaseGridViewDataSet.Items is not IEnumerable."));
}
throw new NotSupportedException($"The type '{type}' is not a collection or a IBaseGridViewDataSet!");
}
