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Net-Framework/UWP-Universal-Windows-Plattform/Samples Loading IReadOnlyList Items into other List 29.12.2020 50 Loading IReadOnlyList Items How to manually load items into an IReadOnlyList Solution You can add the elements of an IReadOnlyList to an ObservableList with Load Add(item) The ObservableList or IEnumerable List can be so Net-Framework/UWP-Universal-Windows-Plattform/Samples How to Set Color of Windows App Title Bar 26.12.2020 75 In Windows UWP apps, you can adjust the color of the application window through the ApplicationView Here's the Windows UWP code for a DarkMode application   Net-Framework/UWP-Universal-Windows-Plattform/Samples Hide UWP App Bar 26.12.2020 71 You can hide or make invisible the top bar of a Windows 10 window with the following C's code lines Net-Framework/UWP-Universal-Windows-Plattform/Errors OrderByDate The specified query options are not available for this folder because it is not within a library 25.12.2020 80 OrderByDate The specified query options are not available for this folder because it is not within a library Error message: System ArgumentException: Net-Framework/UWP-Universal-Windows-Plattform/UWP-Controls Solved: Photos Loading in UWP is very slow 25.12.2020 57 Code Example Solution 1: Switch to Async Loading Images An improvement can be seen when you look at image SetSource Net-Framework/UWP-Universal-Windows-Plattform/UWP-Controls GridSplitter Control 23.12.2020 61 Microsoft in the Community Toolkit a GridSplitter Control for UWP foruse With grid splitter control, areas in a grid can be moved with a slider The control is integrated via the Nuget Package Microsoft Toolkit Uwp UI Controls Instruc Net-Framework/UWP-Universal-Windows-Plattform/UWP-Code UWP Code: Read and Show Photos from smartphone 23.12.2020 68 UWP Code: Photos from smartphone lesen This post shows the Code for a Windows 10 desktop application that reads and displays the photos and videos from a smartphone The smartphone is connected to the computer via a USB cable The application also works in the st Net-Framework/UWP-Universal-Windows-Plattform/XAML Appearance of Image Stretch None Fill Uniform UniformToFill 23.12.2020 67 Images are displayed in Windows Xaml images adapted in 4 different sizes Stretch: 1 None 2 Fill 3 & Net-Framework/UWP-Universal-Windows-Plattform/Errors Error System.UnauthorizedAccesException Access Denied 19.12.2020 84 Error Error message: System UnauthorizedAccesException Access Denied Exception from HRESULT: 0x80070005 E_AccessDenied Concerns: C# Error message when accessing a directory on a mobile phone smartphone Net-Framework/UWP-Universal-Windows-Plattform/UWP-Code NET: FolderPicker to select eines directory 04.12.2020 106 NET: FolderPicker to select eines directory Select a folder in C Note: unfortunately connected USB drives are not displayed by smartphones How to create a dialog directory in Windows 10 to select a folder? Windows FolderPicker Net-Framework/UWP-Universal-Windows-Plattform/UWP-Code UWP: Write message box 04.12.2020 105 Example: how to display an error message in a small message dialog To do this, simply use the MessageDialog Code example: Net-Framework/UWP-Universal-Windows-Plattform/UWP-Code How to load an image into an image control in Windows 08.04.2020 523 The following code is used to load an image into a display item in Windows Desktop programs *get File StorageFile file = Net-Framework/UWP-Universal-Windows-Plattform/UWP-Code Set value in a ComboBox ComboboxItem 01.11.2019 620 Set value in a ComboBox ComboboxItem Dieses Beispiel zeigt wie man einen Eintag in einem Auswahlfeld ComboBox in UWP und WPF per XAML und per Code erstellen kann UWP, WPF, Select Feld Dropdown Auswahl In XAML You place in the ComboBox within Net-Framework/UWP-Universal-Windows-Plattform UWP: Selectionbox Usercontrol 16.01.2018 1519 The following code is for building your own text box combination element, with which you can select texts or enter manually You only have to create a subdirectory Usercontrols in the project, create a new usercontrol and insert the following code there Net-Framework/UWP-Universal-Windows-Plattform/UWP-Code UWP: List as sortable text array 15.01.2018 1429 With List you can form a simple array of strings or values under UWP List list_Test = new Net-Framework/UWP-Universal-Windows-Plattform/XAML XAML: The name UserControl does not exist in the namespace 12.01.2018 3297 Description: when adding a new UserControl the following error is displayed in the Mainpage: Error message: The name "UcSelection" does not exist in the namespace "using:Rename_Images_Vi Net-Framework/UWP-Universal-Windows-Plattform/UWP-Controls UWP: Frame to Empty Content 03.11.2017 4235 UWP: Frame to Empty Content In my UWP application, I would like to execute the side navigation bar in such a way that in the main part the so-called content is loaded when needed and then disappears when needed when closed I can only perform this functi Net-Framework/UWP-Universal-Windows-Plattform/Video-Stream UWP: MP4 Show Internet file with the MediaPlayerElement 28.07.2017 3690 UWP: MP4 Show Internet file with the MediaPlayerElement The following code loads the MP4 video from the Internet and presents it on a UWP MediaPlayerElement The trick is that the file is on the Internet and is connected via a RandomAccess stream You can use it to Net-Framework/UWP-Universal-Windows-Plattform/Errors VS Error: Unable to load DLL sqlite3.dll 19.06.2017 1510 Error: Unable to load DLL sqlite3 dll Visual Studio, SQLite UWP SQLiteException: Unable to set temporary directory Unable to load DLL 'sqlite3 dll' Net-Framework/UWP-Universal-Windows-Plattform/Windows-Store UWP Store: How to create a Free App with Reductions after a Test-Period 02.06.2017 1492 UWP Store: create free app with How can you set up a UWP app so that the UWP app stays free in the Microsoft Store and thus attracts many users, But after a test phase restrictions are activated such as the reduction of set settings Solution: You Net-Framework/UWP-Universal-Windows-Plattform/UWP-Code UWP: How to Add single lines to a combo box 01.06.2017 1515 UWP: Adding lines to a combo box How can you add to a combo box, drowdown element single elements at runtime One adds individual unbound element directly via two possibilities About ComboBoxItems Net-Framework/UWP-Universal-Windows-Plattform/UWP-Code UWP: Set Focus on Control at Runtime 01.06.2017 5996 UWP: Focus on Control, UI Element I would like to put the focus on a button when I start my Windows 10 UWP app In XAML you can specify the order of the elements to be executed when the TAB key is pressed Net-Framework/UWP-Universal-Windows-Plattform/Windows-Store UWP: Checking and Querying Addon Purchases in a Microsoft Store App 30.05.2017 3174 The following example shows how to check the application under UWP for added add-in purchases Addin, Add-In Purchases Net-Framework/UWP-Universal-Windows-Plattform/Windows-Store UWP: Store sample 30.05.2017 1656 Under Github, there is a store sample for Windows UWP apps, which shows the programming in the app of in-app purchases There are several examples The following options are usually important: · Net-Framework/UWP-Universal-Windows-Plattform/UWP-Controls UWP RichTextEditor: Load a text file into a text editor 26.05.2017 3953 UWP: Load a text file into a text editor The following C # code shows how to load a text file into a display element under UWP Universal Windows Platform App For this, you need a RichEdit text control Net-Framework/UWP-Universal-Windows-Plattform/UWP-Controls UWP AdControl: Install Advertiser Advertiser 26.05.2017 2382 UWP: Install Advertiser Advertiser If you want to include an advertisement under UWP Universal Windows Platform Apps, then you need to do this Nuget Package: Microsoft Services Store SDK   Net-Framework/UWP-Universal-Windows-Plattform/UWP-Code UWP CodeSample: ListFile in Folder 24.05.2017 2909 This example contains the C # code and XAML code to create a file collection of a folder as a table in text form It shows: Access to files and directories File directory dialog Dynamically create and fill a data grid Queryi Net-Framework/UWP-Universal-Windows-Plattform/UWP-Code UWP: View a video from the Internet 19.05.2017 1737 In UWP you can directly view video files from the Internet in an app To do this, you just have to write the URL of the web address as a file into the source property of a MediaElement View a typical example from the Internet Net-Framework/UWP-Universal-Windows-Plattform/UWP-Code UWP: How to Load the web page in a webview control 19.05.2017 8306 UWP: Load the web page in a webview control In UWP Universal Windows Platform is called the browser control Webview UIControl If you want to load a web page in this control, you do this using the Webview Navigate (Uri) method Example of Net-Framework/UWP-Universal-Windows-Plattform/Errors Error: Build action Page is not supported by the specific combination of project targets. 19.05.2017 1934 Error: Build action 'Page' is not supported by the specific combination of project targets Error message: Build action 'Page' is not supported by the specific combination of project targets Solution: Close and reopen the project