Item Collection option for a User Control
As you can see in the pic below, for a ListView Control you can add Items using the Properties pane.
How do I enable this kind of stuff for my UserControl?
I'm not getting anything when I search Google, but I'm probably not using the corr开发者_如何学JAVAect terms.
Does anybody know?
Thanks
You need to create a class that defines the object type that the collection ids composed of. A listView has ListViewItem objects. A TabControl has TabPage objects. Your control has objects which are defined by you. Let's call it MyItemType.
You also need a wraper class for the collection. A simple implementation is shown below.
public class MyItemTypeCollection : CollectionBase
{
public MyItemType this[int Index]
{
get
{
return (MyItemType)List[Index];
}
}
public bool Contains(MyItemType itemType)
{
return List.Contains(itemType);
}
public int Add(MyItemType itemType)
{
return List.Add(itemType);
}
public void Remove(MyItemType itemType)
{
List.Remove(itemType);
}
public void Insert(int index, MyItemType itemType)
{
List.Insert(index, itemType);
}
public int IndexOf(MyItemType itemType)
{
return List.IndexOf(itemType);
}
}
Finally you need to add a member variable for the collection to your user control and decorate it properly:
[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
public MyItemTypeCollection MyItemTypes
{
get { return _myItemTypeCollection; }
}
and you now have a simple interface that allows you to browse and edit the collection. Leaves a lot to be desired still but to do more you will have to learn about custom designers which can be difficult to understand and implement.
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