*this is an answer i've edited my commant
you can use a converter http://msdn.microsoft.com/en-us/library/system.windows.data.multibinding.converter.aspx and in it do the text manipulations
How to add conditions in a Multibinding string block? (WPF)
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15-01-2022 - |
Pergunta
I am trying to format the title of my Application but it seems some basic WPF details escape me. Here is my code:
<Window.Title>
<MultiBinding StringFormat="{}{0} - {1}">
<Binding Path="Shell.Workbench.Title" />
<Binding Path="Shell.Workbench.CurrentFileName" />
</MultiBinding>
</Window.Title>
The problem is that my second field can sometimes be en empty string. If that is the case how can I hide the dash between them?
Example: If both strings exist, I have a title like this "Title - CurrentFileName". If second string is empty, I have "Title -" and I want to have just "Title".
Thank you
Solução
Outras dicas
Hmm, ok it's just an alternative, because you are asking for a solutions with MultiBinding
but I would create an additional property (for joining the strings) in the ViewModel
, which behaves that way, and bind it to the view.
Every other method like ValueConverters
wouldn't be worth the effort.