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[Solved] Multiple Selection & MVVM

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ListPicker

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Cristovao asked on 13 Aug 2012, 02:55 PM

I'm trying to binde my ListPicker to an object that contains 2 collection , 1 for the values and one for the selected values

public ObservableCollection<CategoryFilterValue> SelectedValues

{

get { return _selectedValues; }

set

{

if (value != _selectedValues)

{

_selectedValues = value;

NotifyPropertyChanged("SelectedValues");

}

private ObservableCollection<CategoryFilterValue> _Values;

public ObservableCollection<CategoryFilterValue> Values

{

get { return _Values; }

set

{

if (value != _Values)

{

_Values = value;

NotifyPropertyChanged("Values");

}

And XAML

<telerikInput:RadListPicker

Header="{Binding Text}"

ItemsSource="{Binding Values}"

Width="460" x:Name="radPicker"

SelectionMode="Multiple"

OkButtonIconUri="/Toolkit.Content/appbar.check.rest.png"

CancelButtonIconUri="/Toolkit.Content/appbar.close.rest.png"

SelectedItem="{Binding SelectedValues,ElementName=radPicker,Mode=TwoWay}"

SelectionChanged="radListPicker_SelectionChanged" NoSelectionContent=" "

>

<telerikInput:RadListPicker.ItemTemplate>

<DataTemplate>

<StackPanel>

<TextBlock Text="{Binding Text}" />

</StackPanel>

</DataTemplate>

</telerikInput:RadListPicker.ItemTemplate>

</telerikInput:RadListPicker>

But this seams not to work as I do something like SelectedValues.Clear();
but my listpicker still shows previous selections

Any thoughs?

[Solved] Multiple Selection & MVVM

3 Answers, 1 is accepted