winrt-xaml

问题 I'm searching for the appropiate way to handle the back button pressed event on Windows Phone 8.1 WinRT using the NavigationService available on MVVM light 5. So far I think the best place to do it is inside the ViewModelLocator by registering the GoBack method of the NavigationService while creating it following the approach outlined in NavigationService in MVVM Light V5 This is an effective approach. However, I can't handle validation before navigating back so I was wondering if there is a

问题 I'm trying to convert a Windows.UI.Color into a simple string color name in my Windows 8.1 Universal app. I already have the ARGB values from the Color (even the hex code), and I just want its associated known name (for example, from #7AFF7A7A to "salmon"). Since System.Drawing is not available in WinRT, I cannot use ColorConverter or ColorTranslator. I've tried converting the Windows.UI.Color object into a SolidColorBrush or even a Brush, but none of them provide the name conversion

问题 I'm trying to convert a Windows.UI.Color into a simple string color name in my Windows 8.1 Universal app. I already have the ARGB values from the Color (even the hex code), and I just want its associated known name (for example, from #7AFF7A7A to "salmon"). Since System.Drawing is not available in WinRT, I cannot use ColorConverter or ColorTranslator. I've tried converting the Windows.UI.Color object into a SolidColorBrush or even a Brush, but none of them provide the name conversion

问题 I am having troubles setting up the style of selected item in metro app list box. I have created the DataTemplate for the item in which there is a TextBlock which colour I would like to change. I tried many things from WPF but they are not available for metro like DataTemplate.Triggers, Style.Triggers and so on. I also tried to make a copy of the ItemContainerStyle template but since it uses ContentPresenter to display my DataTemplate I didn't know what to change to achieve what I want. The

问题 EDIT : Here are the pastebins for the code: BasicPage1.xaml.cs BasicPage1.xaml LayoutAwarePage.cs EDIT 2 I have added a MS Connect ticket here: https://connect.microsoft.com/VisualStudio/feedback/details/771648/c-xaml-compile-error-various-errors-the-name-layoutawarepage-does-not-exist#tabs Right a head scratcher which I'm hoping others have experienced and know how to resolved as I'm a little disheartened by the whole affair. The Problem I have been working on a Windows Store App using C#

问题 I am creating a multiselect combobox in Windows 8 as shown in below image: For this I have created custom control code for which is mentioned below: The problem with below code is that on selecting all the all items are not selected Selected items are not displayed in textbox How can I fix that? XAML: <UserControl x:Class="App5.MultiSelectComboBox" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:App5"

问题 Question says it all really :) I'm writing a Windows 8 app in XAML/C# using MVVM Light and I've noticed the EventToCommand feature hasn't been implemented yet. Are there any work arounds for this that anybody can suggest? thanks! 回答1: Check out the EventToCommand behavior written by LocalJoost which uses Reactive Extensions: http://dotnetbyexample.blogspot.be/2012/07/a-winrt-behavior-to-mimic-eventtocommand.html 回答2: You can now accomplish what EventToCommand used to do using the Behaviors

问题 While developing UWP application I recently found quite a few memory leaks preventing my pages from being collected by GC. I have a ContentPresenter on my page like: <ContentControl Grid.Column="0" Grid.Row="1" Content="{x:Bind ViewModel.Schedule, Mode=OneWay}"> </ContentControl> After I remove the Content, or replace it with dynamic {Binding} -- page is collected when I navigate from it. Otherwise it remains in memory. Is it bug or I'm doing something wrong? Is there a way to release and

问题 I am trying to use WinRTXamlToolkit.Controls.DataVisualization.UWP trying to draw any of the stacked charts like this: But only this comes out: Please help me, I have to use stacked series but the framework doesn't act as it should be.. 回答1: Since I don't know how you define the code behind, I just provide the sample code as follows which can create a StackedLineSeries chart successfully. XAML Code <Page x:Class="CStackLineChat.MainPage" ... xmlns:charting="using:WinRTXamlToolkit.Controls

问题 In earlier Versions of .net you could use something like ICollectionView collectionView = CollectionViewSource.GetDefaultView(AllImages); To build up filter mechanisms for UI-Elements. But this doesn't seem to exist in WinRT anymore. I'm using a ListBox-Element to display an User-List. The User-Class contains the properties username (String), isOnline (Boolean), isFriend (Boolean) and unreadMails (Int). I need some kind of Filtering and sorting. Filter by: no Filter only isOnline == true