Creating our first button in VBA

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Revision as of 18:29, 10 March 2013 by Rxdff15551 bb53 (Talk | contribs) (Adding a handler for the button's onAction delegate)

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Prerequisites

We recommend you go though A 'hello world' VBA program before going into this example.

Creating a button

  • Enter the code below in a standard VBA module
  1. Public Sub CreateMyUI3()
  2.  
  3.     With rxCustomUI.defaultInstance
  4.         ' Clear old state
  5.         .Clear
  6.  
  7.         ' Add a new tab
  8.         With .ribbon.tabs.Add(New rxTab)
  9.             .Label = "My First Tab"
  10.             ' Add a new group to our tab
  11.             With .groups.Add(New rxGroup)
  12.                 .Label = "My Group"
  13.  
  14.                 ' Add a new button to our group
  15.                 With .Buttons.Add(New rxButton)
  16.                     .Label = "My Button"
  17.  
  18.                 End With
  19.  
  20.             End With
  21.         End With
  22.  
  23.         ' Render the UI
  24.         .Refresh
  25.     End With
  26.  
  27. End Sub
  • Run the sub to create a button labeled 'My Button' (which belongs to a group labeled 'My Group' which, in turn' belongs to a tab labeled 'My Tab')
    FirstButton.png

Code Analysis

' Add a new group to our tab
With .groups.Add(New rxGroup)
    .Label = "My Group"
    '...
End With

Each rxTab object has a collection of rxGroup objects (accessible through its .groups property). Here we add a new group to our tab's groups and label it 'My Group'


' Add a new button to our group
With .Buttons.Add(New rxButton)
    .Label = "My Button"
 
End With

Each rxGroup object has a collection of rxButton objects (accesible through its .buttons property). Here we add a new button to out group's buttons and label it 'My Button'


Adding a handler for the button's onAction delegate

At the moment the new button isn't of much use as it does nothing when clicked. In this section we will hook up to the control's onAction delegate.

  • Update the sub as follows
  1. Public Sub CreateMyUI3()
  2.  
  3.     With rxCustomUI.defaultInstance
  4.         ' Clear old state
  5.         .Clear
  6.  
  7.         ' Add a new tab
  8.         With .ribbon.tabs.Add(New rxTab)
  9.             .Label = "My First Tab"
  10.             ' Add a new group to our tab
  11.             With .groups.Add(New rxGroup)
  12.                 .Label = "My Group"
  13.  
  14.                 ' Add a new button to our group
  15.                 With .Buttons.Add(New rxButton)
  16.                     .Label = "My Button"
  17.                     ' Hook up the control's onAction delegate
  18.                     .onAction = rxCustomUI.defaultInstance.make_delegate("MyCallback")                    
  19.                 End With
  20.  
  21.             End With
  22.         End With
  23.  
  24.         ' Render the UI
  25.         .Refresh
  26.     End With
  27.  
  28. End Sub

Notes