Protected override void OnNavigatingFrom(NavigatingCancelEventArgs e) Protected override async void OnNavigatedTo(NavigationEventArgs e)Īwait ViewModel.LoadAsync(e.Parameter as CustomerListArgs)
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The following code shows a typical implementation of a view. The OnNavigatingFrom is executed when the user navigates out of this view and is used to free the resources used by the view-model. The OnNavigatedTo is executed when the user navigates to this view and is used to initialize the view-model with the parameters received in the navigation. Another thing to notice is the overridden of two methods: OnNavigatedTo and OnNavigatingFrom. When you examine the code-behind of a view, you will notice that the first thing it does in the constructor is instantiate the view-model. All views depend on a view-model that manage the logic of the User Interface. The layers organize the controls in the view, and the controls show the information to the user. Views contains layers and controls to display the user interface. Examples of Views in this application are: CustomersView, OrdersView or ProductsView. Views are essentially what the user sees on the screen to interact with the application. The following diagram shows the different layers in the application. You can read more details about the MVVM pattern in the MVVM section of this documentation. VanArsdel Inventory Sample is based on a MVVM architecture pattern to facilitate the separation of the user interface from the business logic of the application. This code is distributed under the terms and conditions of the MIT license.NET Foundation Contributingĭo you want to contribute? We would love to have you help out. For feature requests, use the enhancement label. Please use GitHub issues for bug reports and feature requests. Using the repository pattern to connect to SQLite.Īs the code, the documentation is in development as well.The sample is based around creating and managing customer, orders, and products for the fictitious company VanArsdel. The free database samples have been upgraded to a front-end/back-end database format, greatly enhancing the database's performance when used by multiple users in a home or business network environment.This repo showcases a sample Windows 10 application (using the Universal Windows Platform) focused in Line of Business scenarios, showing how to use the latest Windows capabilities in Desktop applications.
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Where practical, we have simplified the user interface in the sample databases in order to make then much easier to learn and master. Most sample databases now sport additional reporting, greater multi-user functionality, and performance enhancements.
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Quite a few of the databases showcased here began life as standard Microsoft Access Database templates, but have been improved and, upgraded to make the sample database more practical and functional for business. These database samples and templates are fully functional, and available to be downloaded and used free for as long you find the database useful. To showcase some of the functionality you should expect from a Microsoft Access database, we have selected several business-related Access database samples that we provide free to the visitors of our website. Access Business Databases - Download Free