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Binding to CultureInfos

Hello, I'd like to to bind ComboBox to all possible CultureInfo instances, for example toSystem.Globalization.CultureInfo.GetCultures(System.Globalization.CultureTypes.AllCultures) array. Is it possible from XAML or do I have to do it from code?

How to effectively filter the results? For example include only cultures starting with en- ?

[406 byte] By [JanKu?era] at [2008-1-8]

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# 1

Hi,

Binding to all cultures is quite easy in XAML only:

Code Snippet

<Window

x:Class="WindowsApplication1.Window1"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

Title="WindowsApplication1"

Height="300" Width="300"

xmlns:global="clr-namespace:System.Globalization;assembly=mscorlib"

<Window.Resources>

<ObjectDataProvider x:Key="CulturesProvider"

ObjectType="{x:Type global:CultureInfo}"

MethodName="GetCultures">

<ObjectDataProvider.MethodParameters>

<global:CultureTypes>AllCultures</global:CultureTypes>

</ObjectDataProvider.MethodParameters>

</ObjectDataProvider>

</Window.Resources>

<Grid>

</Grid>

</Window>

Grouping and sorting can be done in XAML too. For example, here is the same output, this time sorting according to its culture tag (for example en-US).

Code Snippet

<Window

x:Class="WindowsApplication1.Window1"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

Title="WindowsApplication1"

Height="300" Width="300"

xmlns:global="clr-namespace:System.Globalization;assembly=mscorlib"

xmlns:scm="clr-namespace:System.ComponentModel;assembly=WindowsBase"

<Window.Resources>

<ObjectDataProvider x:Key="CulturesProvider"

ObjectType="{x:Type global:CultureInfo}"

MethodName="GetCultures">

<ObjectDataProvider.MethodParameters>

<global:CultureTypes>AllCultures</global:CultureTypes>

</ObjectDataProvider.MethodParameters>

</ObjectDataProvider>

<CollectionViewSource x:Key="MyCVS"

Source="{StaticResource CulturesProvider}">

<CollectionViewSource.SortDescriptions>

<scm:SortDescription PropertyName="IetfLanguageTag" />

</CollectionViewSource.SortDescriptions>

</CollectionViewSource>

</Window.Resources>

<Grid>

</Grid>

</Window>

As for filtering, however, you need to create an event handler, so of course you need some code behind. This displays only the culture of whose the tag starts with en-

Code Snippet

<Window

x:Class="WindowsApplication1.Window1"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

Title="WindowsApplication1"

Height="300" Width="300"

xmlns:global="clr-namespace:System.Globalization;assembly=mscorlib"

xmlns:scm="clr-namespace:System.ComponentModel;assembly=WindowsBase"

<Window.Resources>

<ObjectDataProvider x:Key="CulturesProvider"

ObjectType="{x:Type global:CultureInfo}"

MethodName="GetCultures">

<ObjectDataProvider.MethodParameters>

<global:CultureTypes>AllCultures</global:CultureTypes>

</ObjectDataProvider.MethodParameters>

</ObjectDataProvider>

<CollectionViewSource x:Key="MyCVS"

Source="{StaticResource CulturesProvider}"

Filter="MyCVS_Filter">

<CollectionViewSource.SortDescriptions>

<scm:SortDescription PropertyName="IetfLanguageTag" />

</CollectionViewSource.SortDescriptions>

</CollectionViewSource>

</Window.Resources>

<Grid>

</Grid>

</Window>

with:

Code Snippet

void MyCVS_Filter(object sender, FilterEventArgs e)

{

CultureInfo item = e.Item as CultureInfo;

if (item.IetfLanguageTag.StartsWith("en-"))

{

e.Accepted = true;

}

else

{

e.Accepted = false;

}

HTH,

Laurent

LaurentBugnion at 2007-10-2 >

top of Msdn Tech,Visual Studio Orcas,Windows Presentation Foundation (WPF)...

# 2

Hi Laurent!

I just have to say a big thank you for this comprehensive example.

Jan

JanKu?era at 2007-10-2 >

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