WPF: One-way IValueConverter
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23-09-2019 - |
Question
From what I've been told, I need to create an IValueConverter
to do my custom formatting. The problem is my formatting is one-way, there is no legitmate ConvertBack
implementation.
So, how do I handle one-way IValueConverter
s. (If it helps, this is for a read-only control.)
Solution
All the examples from Microsoft simply throw a NotSupportedException or a NotImplementedException (the former makes more sense) from the ConvertBack
method.
As you say, if the converter is one-way then chances are you'll be using it on a read-only control like TextBlock
, so the ConvertBack
method won't be getting called anyway.
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