XAML markup to use DecimalConverter?

Question

I've a Decimal retail price property that I'm binding to a TextBox e.g. Text="{Binding Path=RetailPrice}". By default this displays with all 4 decimal places showing "0.0000".

I assume I can use the built in DecimalConverter to shorten this to 2 decimal places "0.00", but can't for the life of me figure out the Xaml markup for this.

Or, do I have the wrong end of the stick, and do I have to roll my own converter to do this?

Any and all help will be appreciated, thanks.

Answer 1

I assume I can use the built in DecimalConverter to shorten this to 2 decimal places "0.00"

No, you can't : DecimalConverter is a TypeConverter, it doesn't implement IValueConverter and has no relation with WPF.

Instead, you could use the Binding's StringFormat property :

<TextBlock Text="{Binding RetailPrice, StringFormat=F2}"/>