uwp

问题 In my application I have the following situation: <ContentPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:conv="clr-namespace:NumericTextBoxTest.Converters;assembly=NumericTextBoxTest" xmlns:numericTextBox="clr-namespace:Syncfusion.SfNumericTextBox.XForms;assembly=Syncfusion.SfNumericTextBox.XForms" x:Class="NumericTextBoxTest.MainPage"> <ScrollView> <StackLayout> <Entry/> <Entry/> <Entry/> <Entry/> <Entry/> <Entry/> <Entry/>

问题 I'm using a FilePicker in my app to have the user select a file. But next time the app runs the user has to open it again that way. I want to offer the possibility to open the recent files. Is that possible? 回答1: You can do that using the FutureAccessList class. That is a mechanism to remember opened files and/or folders. You have to assign a token yourself to make it unique in your app, but you can use a Guid.NewGuid().ToString() to make it unique. To remember a file, you can use a method

问题 1.I have Universal Windows Platform project with .net core I think. 2.I want to convert it to target .net framework . 回答1: You can indeed build a UWP app using .NET and C#, but UWP apps includes only a subset of the types provided in the full .NET Framework for each namespace. A main difference between a UWP app and a .NET desktop application is that the former runs in a sandbox that is isolated from other processes, whereas a traditional desktop application typically runs as a full-trust

问题 1.I have Universal Windows Platform project with .net core I think. 2.I want to convert it to target .net framework . 回答1: You can indeed build a UWP app using .NET and C#, but UWP apps includes only a subset of the types provided in the full .NET Framework for each namespace. A main difference between a UWP app and a .NET desktop application is that the former runs in a sandbox that is isolated from other processes, whereas a traditional desktop application typically runs as a full-trust

问题 1.I have Universal Windows Platform project with .net core I think. 2.I want to convert it to target .net framework . 回答1: You can indeed build a UWP app using .NET and C#, but UWP apps includes only a subset of the types provided in the full .NET Framework for each namespace. A main difference between a UWP app and a .NET desktop application is that the former runs in a sandbox that is isolated from other processes, whereas a traditional desktop application typically runs as a full-trust

问题 I have been on the search to find a tool or a technique or anything that could help me find which objects from my UWP application is allocating on unmanaged heap memory. I tried looking at WPR/WPA combination for tracing object. But, did not find anything useful there. (If you have any good links for UWP/WPF apps with this combo, please share) I installed Ant Memory profiler , but they do not seem to have any option for Windows Store apps anymore. I checked .NET memory profiler , when I try

问题 var displayRegion= ApplicationView.GetForCurrentView().GetDisplayRegions() In some devices, I am getting this exception, System.InvalidCastException: 'Unable to cast object of type 'Windows.UI.ViewManagement.ApplicationView' to type 'Windows.UI.ViewManagement.IApplicationView9'. How to avoid this exception? 回答1: The GetDisplayRegions API was introduced in Windows 10, version 1903 (introduced in 10.0.18362.0) (see Docs). This means you have to first check if the API is present on the current

问题 I am making a UWP app where i want to pick a user signature scanned by the user and make the picture transparent. now first things first: I am using FileOpenPicker to pick the storage file. Work tried by me public async void Button_AddSign_Click(object sender, RoutedEventArgs e) { try { var _filePicker = new FileOpenPicker(); _filePicker.SuggestedStartLocation = PickerLocationId.Desktop; _filePicker.ViewMode = PickerViewMode.Thumbnail; _filePicker.FileTypeFilter.Add(".png"); IStorageFile

问题 In my personal Azure account, I migrated some users from a Windows Server AD , and some were created directly in Azure AD , and some users came from Microsoft Personal accounts. I have been able to display these users in a Windows Desktop app using Microsoft Graph - similar to what we see in Azure Portal (as shown below). Moreover, as shown below, the Source of user list in Azure portal tells you whether a user was migrated from Windows Server AD or not. But I have not been able to find a way

问题 In my personal Azure account, I migrated some users from a Windows Server AD , and some were created directly in Azure AD , and some users came from Microsoft Personal accounts. I have been able to display these users in a Windows Desktop app using Microsoft Graph - similar to what we see in Azure Portal (as shown below). Moreover, as shown below, the Source of user list in Azure portal tells you whether a user was migrated from Windows Server AD or not. But I have not been able to find a way