JetBrains Rider中C# WPF程序异常无法在Run标签页显示的问题

Absolutely! You can absolutely get Rider to show both unhandled exceptions and Console.WriteLine output in the Run tab, just like you're used to with Java/IDEA. Here's how to fix this step by step:

1. Configure Rider's Run Output Settings #

First, make sure Rider is set up to capture and display console output properly:

• Open your Run/Debug Configurations (click the run dropdown in the top-right corner → Edit Configurations..., or press Alt+Shift+F10 then select Edit)
• Select your WPF project's configuration from the list
• Switch to the Logs tab
  • Under the Console section, set Show console to Always or When application writes to stdout/stderr
  • Enable Redirect stdout/stderr (this ensures Rider captures both standard output and error streams)
• Click Apply and OK to save changes

2. Add Global Exception Handlers to Your WPF App #

WPF doesn't automatically route unhandled exceptions to the console by default—you'll need to manually capture them and write them out. Add this code to your App.xaml.cs:

using System;
using System.Windows;

namespace YourWpfApplicationNamespace
{
    public partial class App : Application
    {
        protected override void OnStartup(StartupEventArgs e)
        {
            // Capture unhandled exceptions on the UI thread
            DispatcherUnhandledException += (sender, args) =>
            {
                Console.WriteLine($"UI Thread Unhandled Exception:\n{args.Exception}");
                // Optional: Set args.Handled = true if you want to prevent the app from crashing immediately
            };

            // Capture unhandled exceptions on background threads
            AppDomain.CurrentDomain.UnhandledException += (sender, args) =>
            {
                Console.WriteLine($"Global Unhandled Exception:\n{args.ExceptionObject as Exception}");
            };

            base.OnStartup(e);
        }
    }
}

This will ensure every unhandled exception (whether on the UI thread or a background thread) gets printed to the console, which Rider will display in the Run tab.

3. Check Console Output Filters #

Sometimes Rider might be filtering out your output without you noticing:

• Switch to the Run tab after running your app
• Look for the funnel icon (filter button) in the top-right corner of the tab
• Make sure Hide stdout and Hide stderr are not checked, and set the filter to Show all

After setting these up, your Console.WriteLine calls will appear in the Run tab, and any unhandled exceptions will be printed with full details—just like in IntelliJ IDEA for Java apps.

内容的提问来源于stack exchange，提问作者Daniel Däschle