[EditorAttribute(typeof(ImageUrlEditor), typeof(UITypeEditor))]
[DefaultValueAttribute("")]
public string NextBlockImageUrl { get; set; }

<EditorAttribute(GetType(ImageUrlEditor), GetType(UITypeEditor))> _
<DefaultValueAttribute("")> _
Public Property NextBlockImageUrl As String

[EditorAttribute(typeof(ImageUrlEditor), typeof(UITypeEditor))]
[DefaultValueAttribute(L"")]
public:
property String^ NextBlockImageUrl {
	String^ get ();
	void set (String^ value);
}