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[Solved] Binding to ElementName in WP7

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Kamil asked on 25 Feb 2012, 04:22 PM

I have a problem with dynamic xaml loading in WP7 application.

Dashboard content = XamlReader.Load(PathToXamlFile) as Dashboard;

Xaml file code:

<g:Dashboard xmlns:g="http://schemas.xxx.com/mobile"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006">
 
<g:Dashboard.ObserverDefinitions>        
    <g:DoubleObserver x:Name="DoubleName" EntityName="entName" UpdateRate="1000" Value="12.3"/>
</g:Dashboard.ObserverDefinitions>
 
<Grid>
    <Grid.RowDefinitions>
        <RowDefinition/>
        <RowDefinition/>
    </Grid.RowDefinitions>
 
    <Grid.ColumnDefinitions>
        <ColumnDefinition/>
        <ColumnDefinition/>
    </Grid.ColumnDefinitions>
    <TextBox Grid.Row="1" Grid.Column="1" Text="{Binding ElementName=DoubleName,   Path=Value}"/>
</Grid>
 
</g:Dashboard>

Double observer implements INotifyPropertyChanged. While using WPF for desktop application, after dynamic loading, PropertyChangedEvent is set properly. However on WP7 it is null.

Have You got any idea, if there is an workaround for this problem?

5 Answers, 1 is accepted

answered on 29 Feb 2012, 04:47 PM

Hi!
I've just make a ticket: I hope, that You will find what is wrong with my code - "Your ticket ID is: 517625"

Small update:
After set binding in codebehind:

Grid g = content.Content as Grid;

TextBox t = g.Children[0] as TextBox;

Binding binding = new Binding();

binding.Source = content.ObserverDefinitions[0];

binding.Path = new PropertyPath("Value");

t.SetBinding(TextBox.TextProperty, binding);

everything is done properly. So dynamic binding is not working in wp7 (this is my final thought, but I still wait for You answer about my SampleApp)

Have a nice day!
Kamil