How to Use PopupExtensions.ShowPopupAsync in Custom Controls in MAUI скачать в хорошем качестве

How to Use PopupExtensions.ShowPopupAsync in Custom Controls in MAUI

Learn how to integrate `PopupExtensions.ShowPopupAsync` in your MAUI custom controls effectively. Discover strategies for handling parent page references and displaying popups seamlessly. --- This video is based on the question https://stackoverflow.com/q/74786533/ asked by the user 'Roberto Vargas' ( https://stackoverflow.com/u/11186728/ ) and on the answer https://stackoverflow.com/a/74820997/ provided by the user 'Liyun Zhang - MSFT' ( https://stackoverflow.com/u/17455524/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Use PopupExtensions.ShowPopupAsync function in Custom Control in MAUI Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- How to Use PopupExtensions.ShowPopupAsync in Custom Controls in MAUI Creating custom controls in .NET MAUI can significantly enhance the user experience by allowing developers to implement tailored functionality. A common requirement is the need to display popups whenever users interact with these custom controls. In this guide, we will delve into how to employ the PopupExtensions.ShowPopupAsync function effectively in your MAUI custom controls. The Problem You may find yourself in a situation where you want to show a popup, such as a calculator, instead of offering a keyboard when a user interacts with a custom control. For example, you might have created a control akin to the following: [[See Video to Reveal this Text or Code Snippet]] The code above will likely throw an error because the context of this within your custom control does not represent a Page, which is required by the method. Therefore, it’s crucial to determine how you can properly reference the parent page within your custom control to make this work. Finding the Current Page To resolve this, you can retrieve the current page from your navigation stack. Depending on how your app is structured, there are a few different approaches you can take: Using Shell If your project utilizes the Shell, you can get the current page like this: [[See Video to Reveal this Text or Code Snippet]] Using NavigationPage If you're working with a NavigationPage, use the following code: [[See Video to Reveal this Text or Code Snippet]] General Approach A more generic method that accounts for both cases is: [[See Video to Reveal this Text or Code Snippet]] This method effectively retrieves the MainPage, which could either be the Shell or the NavigationPage, depending on the structure of your application. Getting the Parent Page from the Custom Control Alternatively, you can create an extension method that allows your custom control to find its parent page easily. Here’s how you can implement it: [[See Video to Reveal this Text or Code Snippet]] Explanation of the Extension Method Purpose: This static method traverses up the visual tree to find the closest Page that the element (your control) belongs to. Flexibility: By implementing this method, your control can effectively reference its parent Page regardless of where it is located in the hierarchy. Conclusion By leveraging these techniques, you can effectively use PopupExtensions.ShowPopupAsync within your custom controls in MAUI. Whether incorporating popups into your application via the Shell or NavigationPage, having a clear understanding of how to reference the parent page enhances your development process and can lead to a more intuitive user experience. Implementing this should facilitate smooth integration of popups in response to user interactions. Now, you can refine your MAUI applications even further by using thoughtfully designed custom controls!