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RadWindow Empty after Back Navigation

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Nino asked on 18 Feb 2014, 11:13 AM

Hi

I use a RadWindow with a userControll in it to reuse a list. Now this works as expected until I navigate back with the back key of the phone.

Steps:

1. I start the app
2. Log in an get redirected to the menu
3. Navigate to my itemoverview
4. select a item
5. open the window with a tap on a textblock
6. navigate back
7. select again a item (doesn't matter if the same or not)
8. tap again onthe textblock to open the window and see that it is opened correctly but after a second the whole content disapears
9. hit the back button: the window is closed, but the whole content of the page is gone
10. hit back again: the overview appears

My Windows Code:

<telerikPrimitives:RadWindow IsFullScreen="True" IsClosedOnBackButton="True"

IsClosedOnOutsideTap="True"

HorizontalAlignment="Stretch"

VerticalAlignment="Stretch"

VerticalContentAlignment="Stretch"

HorizontalContentAlignment="Stretch"

IsOpen="{Binding IsWindowOpen, Mode=TwoWay}" Margin="0,42,0,438">

<StackPanel>

<TextBlock Text="{Binding LocalizedResources.SelectBillStatusTitle, Source={StaticResource LocalizedStrings}}" Style="{StaticResource PhoneTextLargeStyle}" Margin="12,0" />

<Path Data="M9,242 L456,242" Height="0.5" Stretch="Fill" UseLayoutRounding="False" Stroke="{StaticResource PhoneBackgroundBrush}" StrokeThickness="2" Margin="0,5,0,12"/>

<userControl:BillStatusUserControl/>

</StackPanel>

</telerikPrimitives:RadWindow>

I didn't apply any custom animations or anything like that.

My UserControl Code:

<UserControl

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

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

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:Src="clr-namespace:SmallInvoiceForWP.Src" xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity" xmlns:Command="clr-namespace:GalaSoft.MvvmLight.Command;assembly=GalaSoft.MvvmLight.Extras.WP8" x:Class="SmallInvoiceForWP.UserControl.BillStatusUserControl"

mc:Ignorable="d"

d:DesignHeight="0" d:DesignWidth="0"

DataContext="{Binding BillStatus, Source={StaticResource Locator}}">

<UserControl.Resources>

<Src:EnumToStringConverter x:Key="EnumToStringConverter" />

<DataTemplate x:Key="EnumlistTemplate">

<StackPanel>

<TextBlock Text="{Binding Converter={StaticResource EnumToStringConverter}}" Style="{StaticResource PhoneTextTitle3Style}" FontFamily="Segoe WP Light" Margin="12,0,12,12" />

</StackPanel>

</DataTemplate>

</UserControl.Resources>

<UserControl.FontFamily>

<StaticResource ResourceKey="PhoneFontFamilyNormal"/>

</UserControl.FontFamily>

<UserControl.FontSize>

<StaticResource ResourceKey="PhoneFontSizeNormal"/>

</UserControl.FontSize>

<UserControl.Foreground>

<StaticResource ResourceKey="PhoneForegroundBrush"/>

</UserControl.Foreground>

<Grid x:Name="LayoutRoot" Background="{StaticResource PhoneChromeBrush}">

<ListBox SelectedItem="{Binding SelectedFilter, Mode=TwoWay}"

ItemsSource="{Binding Filters}"

ItemTemplate="{StaticResource EnumlistTemplate}">

<i:Interaction.Triggers>

<i:EventTrigger EventName="SelectionChanged">

<Command:EventToCommand

Command="{Binding FilterChangedCommand}" />

</i:EventTrigger>

</i:Interaction.Triggers>

</ListBox>

</Grid>

</UserControl>

Why is this happening?

Thanks and regards
Nino Padrutt

RadWindow Empty after Back Navigation

3 Answers, 1 is accepted