您好我想要一个可扩展的复杂类型集合,这些复杂类型在其他复杂类型中。 我想怎么做:
private static void SetExpandableAttrForType(Type type)
{
var props = type.GetProperties();
foreach (var prop in props.Where(x =>!x.PropertyType.IsSimpleType()&& x.CanWrite))
{
SetExpandableAttrForType(prop.PropertyType);
}
TypeDescriptor.AddAttributes(type, new TypeConverterAttribute(typeof (ExpandableObjectConverter)));
}
然后
SetExpandableAttrForType(arrayInstance.GetType().GetElementType());
测试模型:
public class Class1
{
public Class2 Class2Inclass1 { get; set; }
public Class2[] Class2Array { get; set; }
}
public class Class2
{
public Class3 Class3Inclass2 { get; set; }
public string Class2String { get; set; }
public string Class2String2 { get; set; }
}
public class Class3
{
public Class4 Class4Inclass3 { get; set; }
public string Class3String { get; set; }
public int Class3Int { get; set; }
}
public class Class4
{
public int Class4Int { get; set; }
public DateTime Class4Datetime { get; set; }
}
答案 0 :(得分:0)
关于编程的好处是,当你告诉别人这个问题时,你经常会从另一个角度来看待它。问题是我需要这种嵌套复杂类型的实例。 CellValueChanged事件给我类型,然后我只需要创建它的实例。
private void propertyGridControl1_CellValueChanged(object sender, CellValueChangedEventArgs e)
{
var changedObject = e.Value;
if (changedObject != null)
{
if (changedObject.GetType().IsArray || changedObject.GetType().IsGenericList())
{
var collectionItems = changedObject as IEnumerable;
if (collectionItems != null)
foreach (var item in collectionItems)
{
SetValueOfCollectionComplexObject(item);
}
}
}
}
public void SetValueOfCollectionComplexObject(object item)
{
var complexProps = item.GetType().GetProperties().Where(x => !x.PropertyType.IsSimpleType());
foreach (var prop in complexProps)
{
if (prop.GetValue(item) == null)
{
prop.SetValue(item, Activator.CreateInstance(prop.PropertyType));
SetValueOfCollectionComplexObject(prop.GetValue(item));
}
}
}