' This method initializes ColorDialog1 to allow any colors, 
   ' and combination colors on systems with 256 colors or less, 
   ' but will not allow the user to set custom colors.  The
   ' dialog will contain the help button.
   Private Sub InitializeColorDialog()
       Me.ColorDialog1 = New System.Windows.Forms.ColorDialog
       Me.ColorDialog1.AllowFullOpen = False
       Me.ColorDialog1.AnyColor = True
       Me.ColorDialog1.SolidColorOnly = False
       Me.ColorDialog1.ShowHelp = True
   End Sub
 

   ' This method opens the dialog and checks the DialogResult value. 
   ' If the result is OK, the text box's background color will be changed 
   ' to the user-selected color.
   Private Sub Button1_Click(ByVal sender As System.Object,  _
       ByVal e As System.EventArgs) Handles Button1.Click
       Dim result As DialogResult = ColorDialog1.ShowDialog()
       If (result.Equals(DialogResult.OK)) Then
           TextBox1.BackColor = ColorDialog1.Color
       End If
   End Sub

 
   ' This method is called when the HelpRequest event is raised, 
   'which occurs when the user clicks the Help button on the ColorDialog object.
   Private Sub ColorDialog1_HelpRequest(ByVal sender As Object, _ 
       ByVal e As System.EventArgs) Handles ColorDialog1.HelpRequest

       MessageBox.Show("Please select a color by clicking it." _
       & "This will change the BackColor property of the TextBox.")
   End Sub

' 导入命名空间
Imports System.Drawing
Imports System.Windows.Forms

public class ColorDialogProperty
   public Shared Sub Main
        Dim ColorDialog1 As ColorDialog = New System.Windows.Forms.ColorDialog
        Dim objSelectedColor As Color
        'Dim aryColors() As Integer = {222663, 35453, 7888}
        Dim aryColors() As Integer = {Math.Abs(Color.Gray.ToArgb), _
              Math.Abs(Color.Navy.ToArgb), _
              Math.Abs(Color.Teal.ToArgb)}

        With ColorDialog1
            .Color = Color.Blue
            '.AllowFullOpen = False
            .FullOpen = True
            .AnyColor = True
            .CustomColors = aryColors
            .SolidColorOnly = True
        End With

        If ColorDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then
            Console.WriteLine(ColorDialog1.Color)
        End If

   End Sub
End class