Hey there! I’ve messed around with IUIAutomation for browser automation in C# a fair bit, so let me walk you through some solid steps to troubleshoot your installation issues and get those Edge tab details successfully.

First: Get IUIAutomation Set Up the Right Way #

Skip manually downloading random DLLs—trust me, that’s a quick way to hit version conflicts or missing dependencies. Stick to these reliable methods:

• Use NuGet (the easiest path): Install the UIAComWrapper package via NuGet Package Manager. This is a well-maintained C# wrapper for the native IUIAutomation COM interfaces, so it handles all the low-level plumbing for you.
• Target Windows for .NET Core/.NET 5+: If you’re using a modern .NET runtime, make sure your project is set to target Windows. Edit your .csproj file to include something like <TargetFramework>net6.0-windows</TargetFramework>—IUIAutomation is a Windows-exclusive API, so this is non-negotiable.

Core Approach to Fetch Edge Tab Info #

Once the component is set up correctly, here’s how to zero in on Edge’s tabs:

1. Locate the Edge main window: Use the IUIAutomation root element to scan for windows belonging to msedge.exe. You can filter by process ID and control type (WindowControlTypeId).
2. Find the tab bar container: Edge’s tab row has a consistent Automation ID of TabRow (you can verify this with Windows’ built-in Inspect.exe tool). Use FindFirst with a condition targeting this ID to grab the tab bar element.
3. Scan individual tabs: Each tab is a TabItemControlTypeId element within the tab bar. You can pull the tab title from the CurrentName property. For the URL, some Edge versions store it in the ValuePattern—try fetching that pattern and reading the CurrentValue property.

Common Pitfalls to Check #

If you’re still hitting snags, run through these checks:

• Reference errors post-install: Double-check your project’s target framework is Windows-specific. If you’re using UIAComWrapper, ensure you’ve added the using statement for UIAutomationClient.
• Can’t find Edge elements: Try running your program as an administrator—sometimes regular permissions block access to other processes’ UI elements. Also, avoid Edge’s incognito mode; its UI automation structure is different and harder to navigate.
• Missing properties/elements: Edge’s UI structure can vary slightly between stable, beta, and dev builds. Use Inspect.exe (part of the Windows SDK, or easy to find online) to inspect Edge’s live UI elements and confirm the exact Automation IDs/control types you need to target.

Quick Code Example to Get You Started #

using System;
using System.Diagnostics;
using UIAutomationClient;

class EdgeTabLister
{
    static void Main()
    {
        var uiAutomation = new CUIAutomation();
        var rootElement = uiAutomation.GetRootElement();

        // Find the first Edge main window
        var edgeProcess = Process.GetProcessesByName("msedge");
        if (edgeProcess.Length == 0)
        {
            Console.WriteLine("No Edge instance found!");
            return;
        }

        var edgeWindowCondition = uiAutomation.CreateAndCondition(
            uiAutomation.CreatePropertyCondition(UIA_PropertyIds.UIA_ProcessIdPropertyId, edgeProcess[0].Id),
            uiAutomation.CreatePropertyCondition(UIA_PropertyIds.UIA_ControlTypePropertyId, UIA_ControlTypeIds.UIA_WindowControlTypeId)
        );
        var edgeWindow = rootElement.FindFirst(TreeScope.TreeScope_Children, edgeWindowCondition);

        if (edgeWindow == null)
        {
            Console.WriteLine("Couldn't locate Edge's main window.");
            return;
        }

        // Locate the tab row
        var tabRowCondition = uiAutomation.CreatePropertyCondition(UIA_PropertyIds.UIA_AutomationIdPropertyId, "TabRow");
        var tabRow = edgeWindow.FindFirst(TreeScope.TreeScope_Descendants, tabRowCondition);

        if (tabRow == null)
        {
            Console.WriteLine("Edge tab bar not found—try updating Edge or checking Inspect.exe for correct Automation ID.");
            return;
        }

        // Grab all tab items
        var tabItemCondition = uiAutomation.CreatePropertyCondition(UIA_PropertyIds.UIA_ControlTypePropertyId, UIA_ControlTypeIds.UIA_TabItemControlTypeId);
        var tabItems = tabRow.FindAll(TreeScope.TreeScope_Children, tabItemCondition);

        Console.WriteLine($"Found {tabItems.Length} open Edge tabs:\n");
        for (int i = 0; i < tabItems.Length; i++)
        {
            var tab = tabItems.GetElement(i);
            string title = tab.CurrentName;
            string url = "URL unavailable via ValuePattern";

            try
            {
                var valuePattern = tab.GetCurrentPattern(UIA_PatternIds.UIA_ValuePatternId) as IUIAutomationValuePattern;
                url = valuePattern?.CurrentValue ?? url;
            }
            catch { /* Ignore if ValuePattern isn't supported */ }

            Console.WriteLine($"Tab {i+1}: {title}\nURL: {url}\n");
        }
    }
}

内容的提问来源于stack exchange，提问作者user9726615