CODEWITHSUNDEEP
windows-store-appsfileopenpicker
Dabblernl
Dabblernl

Reputation: 16101

Why is the Documents folder not opened in a Windows Store application?

In the code below the documents folder is not shown to pick a file. The capabilities have been set correctly (I think) otherwise an Exception would be thrown. If I set a breakpoint I see that the code reaches the await statement but then it sits there and nothing happens.

Private Async Function Button_Click_1(sender As Object, e As RoutedEventArgs) As Task
        If ApplicationView.TryUnsnap = False Then
            StatusMessage = "Cannot unsnap."
            Exit Function
        End If
        Dim filePicker As New FileOpenPicker
        filePicker.SuggestedStartLocation = PickerLocationId.DocumentsLibrary
        filePicker.ViewMode = PickerViewMode.Thumbnail
        filePicker.FileTypeFilter.Add(".pbn")
        Dim pbnFile = Await filePicker.PickSingleFileAsync
        If pbnFile IsNot Nothing Then
            StatusMessage = pbnFile.Path
        End If
 End Function

EDIT: the first line in the Method above must be:

If ApplicationView.Value = ApplicationViewState.Snapped AndAlso ApplicationView.TryUnsnap = False Then

And the problem is solved...

The XAML:

<Page
    x:Class="HandEditor.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:HandEditor"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
        <Grid.RowDefinitions>
            <RowDefinition/>
            <RowDefinition/>
        </Grid.RowDefinitions>
        <Button Click="Button_Click_1">Choose .pbn file</Button>
        <TextBlock Grid.Row="1" Text="{Binding StatusMessage}"/>
    </Grid>
</Page>

Upvotes: 0

Views: 162

Answers (1)

Ross Dargan
Ross Dargan

Reputation: 6021

This is because your call to unsnap is failing.

Try snapping your app, then it will work as expected. Remove the exit function part and it works as expected.

Upvotes: 2

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