Proposal: FilePicker Solution

[VMASPAD]

Esta es una solucion a el problema de FilePicker es:

This is a solution to the FilePicker problem:

namespace ExecPortal;

public class App : Application
{
    public static Window? MainWindow { get; private set; }

    protected override void OnLaunched(LaunchActivatedEventArgs args)
    {

#if NET6_0_OR_GREATER && WINDOWS && !HAS_UNO
        MainWindow = new Window();
#else
        MainWindow = Microsoft.UI.Xaml.Window.Current;

#endif

#if DEBUG
        MainWindow.EnableHotReload();
#endif


        // Do not repeat app initialization when the Window already has content,
        // just ensure that the window is active
        if (MainWindow.Content is not Frame rootFrame)
        {
            // Create a Frame to act as the navigation context and navigate to the first page
            rootFrame = new Frame();

            // Place the frame in the current Window
            MainWindow.Content = rootFrame;

            rootFrame.NavigationFailed += OnNavigationFailed;
        }

        if (rootFrame.Content == null)
        {
            // When the navigation stack isn't restored navigate to the first page,
            // configuring the new page by passing required information as a navigation
            // parameter
            rootFrame.Navigate(typeof(MainPage), args.Arguments);
        }

        // Ensure the current window is active
        MainWindow.Activate();
    }

    /// <summary>
    /// Invoked when Navigation to a certain page fails
    /// </summary>
    /// <param name="sender">The Frame which failed navigation</param>
    /// <param name="e">Details about the navigation failure</param>
    void OnNavigationFailed(object sender, NavigationFailedEventArgs e)
    {
        throw new InvalidOperationException($"Failed to load {e.SourcePageType.FullName}: {e.Exception}");
    }

}

Proposal: [your title here]

Summary

Rationale

• {First reason for why we should consider this proposal}
• {Second reason for why we should consider this proposal}
• {etc}

Scope

Capability	Priority
This proposal will allow developers to accomplish W	Must
This proposal will allow end users to accomplish X	Should
This proposal will allow developers to accomplish Y	Could
This proposal will allow end users to accomplish Z	Won't

Important Notes

Open Questions

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Closed similar issues:

• Discussion: File/Folder picker (#2854), similarity score: 0.72

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