How to bind SystemTray Progressbar to a property in selected PivotItem DataContext

Question

I got an app with a Pivot and 3 PivotItems. Each PivotItem has its own DataContext, and the DataContext has a property named IsLoading.

It is possible to bind the SystemTray.ProgressIndicator IsVisible property to the selected pivotitem DataContext.IsLoading property?

Here is What I tryied:

<shell:SystemTray.ProgressIndicator>
    <shell:ProgressIndicator 
       IsVisible="{Binding ElementName=pivot, Path=SelectedItem.DataContext.IsLoading}" />
</shell:SystemTray.ProgressIndicator>
<Grid Background="Transparent">
    <controls:Pivot x:Name="pivot">

        <controls:PivotItem Header="pivot item"
                                Margin="0,28,24,0"
                                DataContext="{Binding DCOne}" />

        <controls:PivotItem Header="pivot item"
                            Margin="0,28,24,0"
                            DataContext="{Binding DCTwo}" />

        <controls:PivotItem Header="pivot item"
                            Margin="0,28,24,0"
                            DataContext="{Binding DCThree}" />
</Grid>

score 4 · Accepted Answer · answered Oct 18 '11 at 07:39

4

Try this:

http://www.codeproject.com/Articles/246355/Binding-the-WP7-ProgressIndicator-in-XAML?display=Print

<a:ProgressIndicatorProxy IsVisible="{Binding ElementName=pivot, Path=SelectedItem.DataContext.IsLoading}" />

(haven't tried it)

answered Oct 18 '11 at 07:39

Rico Suter

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score 0 · Answer 2 · answered Oct 18 '11 at 16:40

Here's a solution from Jeff Wilcox that looks like it will work for your situation:

http://www.jeff.wilcox.name/2011/07/creating-a-global-progressindicator-experience-using-the-windows-phone-7-1-sdk-beta-2/

You could adapt the technique to directly address the ProgressIndicator on your pivot page based on the states of the other (or selected) pivot items.

How to bind SystemTray Progressbar to a property in selected PivotItem DataContext

2 Answers2