This class provides a
System.Drawing.Design.UITypeEditor that can be
used when modifying properties that correspond to Internet URLs. This
class extends on the basic UrlEditor and is
customized for creating URLs that point to XSL transform files. The
differences are minor: the ImageUrlEditor.Filter
property is overridden to provide the "*.xsl;
*.xslt" file filter and the
ImageUrlEditor.Caption of the designer window is
modified to "Select XSL Transform
File." This class is used, for example, by the
TransformSource property of the
System.Web.UI.WebControls.Xml
control.