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How do I perform formating in Databound field?

Posted on 2009-07-07
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Last Modified: 2013-11-12
I have a text block that I am doing some basic databinding and it works well but I want to have the databound item formated to currency, Can you do this in the XAML?

I have included my code below.
<TextBlock Height="21" Name="txtYTDTotal" Text="{Binding YTD_Total, Mode=TwoWay}" />

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Question by:jmarbutt
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TSmooth earned 500 total points
ID: 24803544
Yes, look into using a ValueConverter (IValueConverter interface). Here's an article to get you started:
http://www.silverlight-help.com/tips/kentucker/09-03-27/Formatting_bound_data_in_Silverlight_2.aspx
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by:unmeshdave
ID: 24806397
well normally valueconverter u have to use when u want to display something based on field value (ie if each different value have different formating).
for simple formatting like this,
you can use Stringformat attribute of Binding.
as the attached code.
http://msdn.microsoft.com/en-us/library/system.windows.data.bindingbase.stringformat.aspx  

<TextBlock Height="21" Name="txtYTDTotal" Text="{Binding YTD_Total, StringFormat={}{0:C}, Mode=TwoWay}" />
 

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by:jmarbutt
ID: 24806926
unmeshdave,

I get an error of

"The property 'StringFormat' was not found in type 'Binding'"

When I try your solution, I am missing something simple.
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Expert Comment

by:unmeshdave
ID: 24806941
it comes with .Net 3.5 SP1. so make sure u have installed that.
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by:unmeshdave
ID: 24806948
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Expert Comment

by:TSmooth
ID: 24807049
unmeshdave, I think he's working with Silverlight which does not support the "StringFormat" binding parameter. That's why I went with IValueConverter.

jmarbutt,
If you are using Silverlight, you will need to do it the way I originally posted and you don't need to install .NET 3.5 SP1. If you are using WPF, then unmeshdave's answer should work and be easier.
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Expert Comment

by:unmeshdave
ID: 24807174
yes if he is using SL then Stringformat will not work as of now.
jmarbutt:
If you are using SL you need to use valueconverter as TSmooth Suggessted.
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Author Comment

by:jmarbutt
ID: 24807212
Yeah that should work then with SL. Sorry for the mix up.
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Expert Comment

by:TSmooth
ID: 25117445
From what I can tell following this thread, jmarbutt used my initial solution.
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