Gets or sets a value indicating whether the dialog box displays all available colors in the set of basic colors.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The following code example demonstrates initializing a ColorDialog setting the , AllowFullOpen properties. The ColorDialog does not enable the user to set a custom color, but it enables the full set of basic colors be displayed. When you set the SolidColorOnly property to false, it enables the display of colors that are combinations of other colors on systems with 256 or less colors. The example also shows setting the ShowHelp property and handling a HelpRequest event for a dialog. To run the example, paste the following code in a form and call the InitializeColorDialog method in the form's constructor or Load method. This example requires that the Click event of the button is connected to the event-handler method defined in the example.