iOS Question BarButton text change

[klaus]

Does there exist an easy way to change the text of a BarButton.
Example: Filter > UnFilter > Filter

 

[Erel]

You can use this sub to replace the text of a toolbar button based on its tag:

Sub ReplaceBarButtonText(Tag As String, NewText As String)
   Dim buttons As List = Page1.ToolbarButtons
   For i = 0 To buttons.Size - 1
     Dim bb As BarButton = buttons.Get(i)
     If bb.Tag = Tag Then
       Dim newButton As BarButton
       newButton.InitializeText(NewText, Tag)
       buttons.Set(i, newButton)
       Exit
     End If
   Next
   Page1.ToolbarButtons = buttons
End Sub

 

[klaus]

Thank you Erel,
I was thinking about something like this but hadn't tried it.

 

[MikeH]

Is there a simpler way of doing this? I only have one toolbar button and I want to change its text or visibility.

Thanks

 

[Erel]

Two simple options:
1. Just add this sub and call ReplaceBarButtonText("ButtonTag", "New Text").
2. Create a new BarButton and set it:

Dim b1 As BarButton
b1.InitializeText("New Text", "Tag")
Page1.TopRightButtons = Array(b1)

 

[MikeH]

Great, the 2nd option worked a treat. Thanks Erel.

 

[dieterp]

Is it possible to do the following:

1) Open a page, hide the back button and set a TopLeftButton to some new value
2) Perform some operation (Like display a Tableview) and then click the TopLeftButton to return to the same page I was on (Remove the Tableview)
3) Remove the TopLeftButton and then display the back button with the original 'back' link that the page opened with

 

[Erel]

Please start a new thread for this question.