winrt-xaml

问题 I would like to create a library behaving like the CaptureFileAsync method, i.e. on a method call it would open up a full screen page with standard back navigation and return result to the caller. I want to be able to call it the same way CaptureFileAsync is called: var dialog = new Library.Dialog(); var result = await dialog.Show(); In the Show method I'm currently navigating to my own page and returning a Task which can be awaited by the caller: public Task<string> Show() { var task = new

问题 I am trying to follow the article here to add a custom control to my project so that I can call it ("promptForPhotosetName") like so: Popup popTart = new Popup(); popTart.Child = new promptForPhotosetName(); popTart.IsOpen = true; I added a Custom Control to my project based on Templated Control. My custom control class (which IS in the Photrax namespace) contains this constructor: public promptForPhotosetName() { this.DefaultStyleKey = typeof(promptForPhotosetName); } I have this in \Themes

问题 I am trying to nest a user control within a ScrollViewer making its height the same as height of the ScrollViewer, which may vary based on screen size (i.e. not fixed). The ScrollViewer is responsible for horizontal scrolling and has vertical scrolling disabled. The nested user control has a grid with two rows - "header" (another user control) and a ListView. This ListView should be vertically scrollable. The objective here is that the "header" stays in place and large content of the ListView

问题 I have a two page Windows 8 application. A view page and a settings page. Both pages use the same view model. I can pass the view model between pages to work with it, but then I can not save state because I have passed a complex type between pages (it has to do with how they keep references, and stops you from saving). So I guess I need to save and reload my view model on each page? I can't find a good reference on what is a best practice for this. 回答1: Usually WinRT navigates through Root

问题 I try to create a own design for my app. One of the main things is, that I want to replace the accent color with my own color. Now I can overwrite the brush with this: <Color x:Key="AppAccentColor">#ff6b53</Color> <SolidColorBrush x:Key="PhoneAccentBrush" Color="{StaticResource AppAccentColor}"/> Now if I assign the PhoneAccentBrush somewhere it displays the correct color. But if I click on a TextBox the Border is still the Color of the Color set in the system settings. I tried to overwrite

问题 Hello I want to localize text below standard AddAppBarButton <Style x:Key="AddAppBarButtonStyle" TargetType="ButtonBase" BasedOn="{StaticResource AppBarButtonStyle}"> <Setter Property="AutomationProperties.AutomationId" Value="AddAppBarButton"/> <Setter Property="AutomationProperties.Name" Value="Add"/> <Setter Property="Content" Value=""/> </Style> I've tried in Resource filead add something like ButtonId.AutomationProperties.Name = value But it doesn not work. I get errors when app starts.

问题 What is the best way to create a byte array from an Image? I have seen many methods but in WinRT none of them worked. 回答1: static class ByteArrayConverter { public static async Task<byte[]> ToByteArrayAsync(StorageFile file) { using (IRandomAccessStream stream = await file.OpenReadAsync()) { using (DataReader reader = new DataReader(stream.GetInputStreamAt(0))) { await reader.LoadAsync((uint)stream.Size); byte[] Bytes = new byte[stream.Size]; reader.ReadBytes(Bytes); return Bytes; } } } } 回答2

问题 I have generated an expandable Listview in Windows Phone 8.1. I'm switching templates on item selection changed and item click. <ListView Name="FiltersListview" ItemContainerStyle="{StaticResource StretchItemStyle}" ItemTemplate="{StaticResource CollapsedTemplate}" SelectionChanged="FiltersListview_SelectionChanged" IsItemClickEnabled="True" ItemClick="FiltersListview_ItemClick" Grid.Row="1" Grid.ColumnSpan="2"/> <DataTemplate x:Name="CollapsedTemplate"> <Grid Height="50"> <Grid

问题 When I set player not in fullscreen (player.IsFullWindows = false), event work normally but when change player to full screen all manipulation event not work. Anyone have solution? <MediaElement Name="player" Margin="10,5" ManipulationCompleted="player_ManipulationCompleted" ManipulationDelta="Grid_ManipulationDelta" ManipulationMode="TranslateX" > 回答1: I can reproduce this scenario by enabling both the IsFullWindow="True" and the AreTransportControlsEnabled="True" . I think it makes sense,

问题 I'm working on an App for Win8 which should include the possibility of saving contact information. The service I use offers VCard support so I decided on using them. I can succesfully download and save them, only opening them automatically doesn't work. The files are "correct", and can be opened from the explorer without any problem. Any ideas why LaunchFileAsync isn't working? Here's a dump of the code: private async void SaveContactSelected() { IRandomAccessStreamReference img =