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POWindows Phone 8 Map, Databinding Map modes only works one time
 

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  1. POWindows Phone 8 Map, Databinding Map modes only works one time
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    <p>I have a model with properties:</p> <pre><code> /// &lt;summary&gt; /// List of available map modes /// &lt;/summary&gt; public Array MapModes { get; private set; } /// &lt;summary&gt; /// The current cartographic mode of the map /// &lt;/summary&gt; public MapCartographicMode MapMode { get { return _mapMode; } set { if (value == _mapMode) return; _mapMode = value; OnPropertyChanged(); } } /// &lt;summary&gt; /// List of available map color modes /// &lt;/summary&gt; public Array MapColorModes { get; private set; } //The current color mode of the map public MapColorMode MapColorMode { get { return _mapColorMode; } set { if (value == _mapColorMode) return; _mapColorMode = value; OnPropertyChanged(); } } protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null) { PropertyChangedEventHandler handler = PropertyChanged; if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName)); } </code></pre> <p>And My XAML looks like this:</p> <pre><code> &lt;maps:Map x:Name="MainMap" Height="{Binding MapHeight}" ColorMode="{Binding MapColorMode, Converter={StaticResource MapTestConverter}}"&gt; </code></pre> <p>The properties are updated on another page.</p> <pre><code>&lt;toolkit:ListPicker Header="Map mode" ItemsSource="{Binding MapModes}" SelectedItem="{Binding Path=MapMode, Mode=TwoWay}"/&gt; &lt;toolkit:ListPicker Header="Map color mode" ItemsSource="{Binding MapColorModes}" SelectedItem="{Binding Path=MapColorMode, Mode=TwoWay}"/&gt; </code></pre> <p>Now the binding of the ListPickers works fine the value in the model always represents what was last picked here.</p> <p>The Map binding also works, it gets the initial value and also updates the first time I change a property.</p> <p>BUT that's it. after the first property change it refuses to update. (The dummy IValueConverter isn't called).</p> <p>The model still nicely raises Property changed events, and the property has the correct value in the model (manually assigning it for example at page load works flawlessly)</p> <p>Since it seems the Binding is getting "broken" I tried recreating it each time the property was updated</p> <pre><code> Binding b = new Binding("MapMode"); BindingOperations.SetBinding(MainMap, Map.CartographicModeProperty, b); </code></pre> <p>This works. I am beginning to think there is a bug or something in the wp8 map implementation. (Or I may just miss something completely obvious^^)</p>
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    1. COCould you show your OnPropertyChanged() method? Normally when you raise that method you pass the Public property name into that method
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      1. POWindows Phone 8 Map, Databinding Map modes only works one time
      1. USTeemu Tapanila
    2. COI updated it, I went over it with the debugger it uses the correct name.
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    3. CODo you have anything changing the datacontext?
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      1. POWindows Phone 8 Map, Databinding Map modes only works one time
      1. USTeemu Tapanila
 

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