System.Design 1.0.5000.0 2.0.0.0 To be added. Provides methods to start specific user interfaces for building properties at design-time. Method System.String The parameter should be a named color, or an RGB color expressed in HTML color format (#RRGGBB). Starts a to build a color property. The color that was selected. This value will be a named color, or an RGB color expressed in HTML color format (#RRGGBB). The control used to parent the dialog shown by the . The initial color for the editor to pre-select. 1.0.5000.0 2.0.0.0 Method System.String To be added. Launches an editor to build a URL property. A string that contains the URL returned by the . The control used to parent the dialog shown by the . The initial URL to display in the selection interface. The base URL used to construct relative URLs. A caption that presents a message in the selection interface. The filter string to use to optionally filter the files displayed in the selection interface. A that indicates the options for the . 1.0.5000.0 2.0.0.0