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User Interface for .NET / User's Guide / Custom Forms / Caption Buttons

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    Caption Buttons
    In This Topic
     Overview
    Being completely custom our forms allow you to specify your own caption buttons and to respond to their "Click" event. You may either specify and image set to be used by the button or to select a common glyph to be displayed.
     Adding Buttons

    The following code demonstrates how to add custom caption button on a NForm instance:

    C#
    Copy Code
    //create a frame caption button 
    NFrameCaptionButton button = new NFrameCaptionButton();
    button.Glyph = CommonGlyphs.PinDown;
    button.GlyphSize = new Size(8, 10);
    
    //create a new form and add our button to it
    NForm form = new NForm();
    form.CustomButtons.Add(button);
    form.ShowDialog();
    
    Visual Basic
    Copy Code
    'create a frame caption button 
    Dim button As NFrameCaptionButton = New NFrameCaptionButton()
    button.Glyph = CommonGlyphs.PinDown
    button.GlyphSize = New Size(8, 10)
    
    'create a new form and add our button to it
    Dim form As NForm = New NForm()
    form.CustomButtons.Add(button)
    form.ShowDialog()
    

    The result of the above code:

     

     Trapping The Click Event

    The following example demonstrates how to trap a click from a custom caption button:

    C#
    Copy Code
    NForm form = new NForm();
    form.CaptionButtonClicked += new NUIItemEventHandler(OnCaptionButtonClicked);
    
    ...
    
    private void OnCaptionButtonClicked(object sender, NUIItemEventArgs e)
    {
        MessageBox.Show(e.Item.ToString());
    }
    
    Visual Basic
    Copy Code
    Dim form As NForm = New NForm()
    AddHandler CaptionButtonClicked, AddressOf OnCaptionButtonClicked
    
    ...
    
    Private Sub OnCaptionButtonClicked(ByVal sender As Object, ByVal e As NUIItemEventArgs) Handles form.CaptionButtonClicked
        MessageBox.Show(e.Item.ToString())
    End Sub
    
     Remarks
    Note that the CaptionButtonClicked event will be fired only for non-system (custom) buttons.
    See Also