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ComboBox control, AddItem method, Picture, PicturePosition properties example

  • Artikkeli

The following example uses a ComboBox to show the picture placement options for a control. Each time the user clicks a list choice, the picture and caption are updated on the CommandButton. This code sample also uses the AddItem method to populate the ComboBox choices.

To use this example, copy this sample code to the Declarations portion of a form. Make sure that the form contains:

  • A Label named Label1.
  • A CommandButton named CommandButton1.
  • A ComboBox named ComboBox1.
Private Sub UserForm_Initialize() 
 Label1.Left = 18 
 Label1.Top = 12 
 Label1.Height = 12 
 Label1.Width = 190 
 Label1.Caption = "Select picture placement " _ 
 & "relative to the caption." 
 
 'Add list entries to combo box. The value of each 
 'entry matches the corresponding ListIndex value 
 'in the combo box. 
 ComboBox1.AddItem "Left Top" 'ListIndex = 0 
 ComboBox1.AddItem "Left Center" 'ListIndex = 1 
 ComboBox1.AddItem "Left Bottom" 'ListIndex = 2 
 ComboBox1.AddItem "Right Top" 'ListIndex = 3 
 ComboBox1.AddItem "Right Center" 'ListIndex = 4 
 ComboBox1.AddItem "Right Bottom" 'ListIndex = 5 
 ComboBox1.AddItem "Above Left" 'ListIndex = 6 
 ComboBox1.AddItem "Above Center" 'ListIndex = 7 
 ComboBox1.AddItem "Above Right" 'ListIndex = 8 
 ComboBox1.AddItem "Below Left" 'ListIndex = 9 
 ComboBox1.AddItem "Below Center" 'ListIndex = 10 
 ComboBox1.AddItem "Below Right" 'ListIndex = 11 
 ComboBox1.AddItem "Centered" 'ListIndex = 12 
 'Use drop-down list 
 ComboBox1.Style = fmStyleDropDownList 
 'Combo box values are ListIndex values 
 ComboBox1.BoundColumn = 0 
 'Set combo box to first entry 
 ComboBox1.ListIndex = 0 
 
 
 ComboBox1.Left = 18 
 ComboBox1.Top = 36 
 ComboBox1.Width = 90 
 ComboBox1.ListWidth = 90 
 
 'Initialize CommandButton1 
 CommandButton1.Left = 230 
 CommandButton1.Top = 36 
 CommandButton1.Height = 120 
 CommandButton1.Width = 120 
 
 'Note: Be sure to refer to a bitmap file that is 
 'present on your system, and to include the path 
 'in the filename. 
 CommandButton1.Picture = _ 
 LoadPicture("c:\windows\argyle.bmp") 
 CommandButton1.PicturePosition = ComboBox1.Value 
End Sub 
 
Private Sub ComboBox1_Click() 
 Select Case ComboBox1.Value 
 Case 0 'Left Top 
 CommandButton1.Caption = "Left Top" 
 CommandButton1.PicturePosition = _ 
 fmPicturePositionLeftTop 
 
 Case 1 'Left Center 
 CommandButton1.Caption = "Left Center" 
 CommandButton1.PicturePosition = _ 
 fmPicturePositionLeftCenter 
 
 Case 2 'Left Bottom 
 CommandButton1.Caption = "Left Bottom" 
 CommandButton1.PicturePosition = _ 
 fmPicturePositionLeftBottom 
 
 Case 3 'Right Top 
 CommandButton1.Caption = "Right Top" 
 CommandButton1.PicturePosition = _ 
 fmPicturePositionRightTop 
 
 Case 4 'Right Center 
 CommandButton1.Caption = "Right Center" 
 CommandButton1.PicturePosition = _ 
 fmPicturePositionRightCenter 
 
 Case 5 'Right Bottom 
 CommandButton1.Caption = "Right Bottom" 
 CommandButton1.PicturePosition = _ 
 fmPicturePositionRightBottom 
 
 Case 6 'Above Left 
 CommandButton1.Caption = "Above Left" 
 CommandButton1.PicturePosition = _ 
 fmPicturePositionAboveLeft 
 
 Case 7 'Above Center 
 CommandButton1.Caption = "Above Center" 
 CommandButton1.PicturePosition = _ 
 fmPicturePositionAboveCenter 
 
 Case 8 'Above Right 
 CommandButton1.Caption = "Above Right" 
 CommandButton1.PicturePosition = _ 
 fmPicturePositionAboveRight 
 
 Case 9 'Below Left 
 CommandButton1.Caption = "Below Left" 
 CommandButton1.PicturePosition = _ 
 fmPicturePositionBelowLeft 
 
 Case 10 'Below Center 
 CommandButton1.Caption = "Below Center" 
 CommandButton1.PicturePosition = _ 
 fmPicturePositionBelowCenter 
 
 Case 11 'Below Right 
 CommandButton1.Caption = "Below Right" 
 CommandButton1.PicturePosition = _ 
 fmPicturePositionBelowRight 
 
 Case 12 'Centered 
 CommandButton1.Caption = "Centered" 
 CommandButton1.PicturePosition = _ 
 fmPicturePositionCenter 
 
 End Select 
 
End Sub

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