StringFormat with value zero

问题:

I'm developing a wpf application with componentart I have a textblock like this

<TextBlock FontSize="28" Text="{Binding DataPoint.Y, StringFormat=\{0:#\\%\}}" Foreground="Black">

As you can see, my StringFormat puts a '%' sign after the number, but if my data is 0.0 (I fill the component in code behind, my variable is a double) I get "%", but I want to get "0%", how can I do this?

回答1:

you can use different StringFormat. Instead of 0:# put 0:0:

<TextBlock FontSize="28" Text="{Binding Path=MyDouble, StringFormat=\{0:0\\%\}}" Foreground="Black"/>

quoting MSDN:

#: Replaces the "#" symbol with the corresponding digit if one is present; otherwise, no digit appears in the result string.

0: Replaces the zero with the corresponding digit if one is present; otherwise, zero appears in the result string.