StringFormat Binding using "%"

Question

Hello,

Currently I'm using the following code to define a simple property binding:

<TextBlock Text="{Binding SurfaceCovered, StringFormat=F2, Mode=OneWay}"/>
<TextBlock Text=" %"/>

Now the property "SurfaceCoverd" changed and it will contain values ranging from 0.0 to 1.0, and I would like to show then to the user as from 0 % do 100 %, so I will have to multiply the value by 100 and add the " %" string.

Is there any way to do that wiht FromatBinding in .NET 3.5 sp1, instead of using custom formater classes?

I read something about using the "%" string formatting, but I couldn't make it work.

Thanks in advance,

Igor

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Project Manager at INOVATIVA Tecnologia www.inovativatec.com

Answer 1

You should use:

<TextBlock Text="{Binding SurfaceCovered, StringFormat=\{0:F2\}, Mode=OneWay}"/>

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http://weblogs.asp.net/marianor/

Answer 2

That will not multiply it by 100.

This is the right format for it:

<Page
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:sys="clr-namespace:System;assembly=mscorlib"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  <Grid>  
    <ContentControl ContentStringFormat="{}{0:0.0%}">
      <sys:Double>0.123</sys:Double>
    </ContentControl>
  </Grid>
</Page>

The example is not with a binding, but you can use the same format for the StringFormat parameter of a binding.

hth,

Marcel

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http://dutchmarcel.wordpress.com/

Answer 3

Hi Igor,

To display the data in percentage format, you can use the format specifier "P", P0 stands for no decimal digit, e.g. 30%; P1 stands for 1 decimal digit, e.g. 30.0%; and so on;

  <TextBlock Name="textBlock1" Text="{Binding SurfaceCovered, StringFormat=P0 , Mode=OneWay}"/>

For more information about the The Percent ("P") Format Specifier, see:

http://msdn.microsoft.com/en-us/library/dwhawy9k.aspx#PFormatString


If anything is unclear, please feel free to let me know.

Best Regards,
Zhi-Xin Ye
MSDN Subscriber Support in Forum
If you have any feedback on our support, please contact [e-mail]

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