[dotnet-sdk-7.0.100-preview.3.22118.7] Greenshot and NugetPackageExplorerget apps get exception When do saving the file operation

Description

When running Greenshot with .NET 7.0 Preview 3 runtime, it will get exception when do saving the file operation.

Reproduction Steps

Repro steps for the affected app:

This is .Net 5.0 app, but we are running it on 7.0, machine only have 7.0 installed, and DOTNET_ROLL_FORWARD_ON_NO_CANDIDATE_FX=2, so it runs on 7.0.

1.Copy App from App Path and launch Greenshot.exe. 2.Click “OK” button. 3.Press Print Screen key. 4.Take a screenshot by dragging the cursor down a little and releasing the left button click. 5.Choose Save as (displaying dialog) menu item.

Minimal Repro steps: dotnet-sdk-7.0.100-preview.322118.7 sdk should be installed on the machine. Sample code attached. WinFormsApp1 (2).zip

1. Create .net 5.0 Winform app
2. Add SaveFileDialog and Button Component to form
3. In Button click event, write this :

 private void button1_Click(object sender, EventArgs e)
        {
             var dialog = new System.Windows.Forms.SaveFileDialog()
            {
               InitialDirectory = @"C:\Users\v-zhiyang\Documents"
            };
            try
            {
                var result = dialog.ShowDialog();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }

        }

1. Publish the app and change the runtime.json file to use 7.0.0-preview.3.22116.6 for Microsoft.WindowsDesktop.App under publish folder.

{
  "runtimeOptions": {
    "tfm": "net5.0",
    "framework": {
      "name": "Microsoft.WindowsDesktop.App",
      "version": "7.0.0-preview.3.22116.6"
    }
  }
}

1. Start the project with F5.
2. Click “button1” Button.

Expected behavior

It shows save window.

Actual behavior

Actual Result for the Affected App: It shows error and crash.

Application: Greenshot.exe
Microsoft.WindowsDesktop.App version: 7.0.0-preview.3.22116.6
Description: The process was terminated due to an unhandled exception.
Exception Info: System.InvalidCastException: 
System.NotImplementedException: ComWrappers for type System.__ComObject not implemented.
   at Interop.WinFormsComWrappers.ComputeVtables(Object obj, CreateComInterfaceFlags flags, Int32& count)
   at System.Runtime.InteropServices.ComWrappers.<TryGetOrCreateComInterfaceForObjectInternal>g____PInvoke__|7_0(ObjectHandleOnStack comWrappersImpl, Int64 wrapperId, ObjectHandleOnStack instance, CreateComInterfaceFlags flags, IntPtr* retValue)
   at System.Runtime.InteropServices.ComWrappers.TryGetOrCreateComInterfaceForObjectInternal(ObjectHandleOnStack comWrappersImpl, Int64 wrapperId, ObjectHandleOnStack instance, CreateComInterfaceFlags flags, IntPtr& retValue)
   at System.Runtime.InteropServices.ComWrappers.TryGetOrCreateComInterfaceForObjectInternal(ComWrappers impl, Object instance, CreateComInterfaceFlags flags, IntPtr& retValue)
   at System.Runtime.InteropServices.ComWrappers.GetOrCreateComInterfaceForObject(Object instance, CreateComInterfaceFlags flags)
   at Interop.WinFormsComWrappers.GetOrCreateComInterfaceForObject(Object obj)
   at Interop.WinFormsComWrappers.GetComPointer[T](T obj, Guid iid)
   at Interop.WinFormsComWrappers.FileDialogWrapper.Interop.Shell32.IFileDialog.SetDefaultFolder(IShellItem psi)
   at System.Windows.Forms.FileDialog.OnBeforeVistaDialog(IFileDialog dialog)
   at System.Windows.Forms.FileDialog.TryRunDialogVista(IntPtr hWndOwner, Boolean& returnValue)
   at System.Windows.Forms.FileDialog.RunDialog(IntPtr hWndOwner)
   at System.Windows.Forms.CommonDialog.ShowDialog(IWin32Window owner)
   at Greenshot.Addons.Controls.SaveImageFileDialog.ShowDialog() in C:\.NETCoreUpgradeApps\AppSources\greenshot\src\Greenshot.Addons\Controls\SaveImageFileDialog.cs:line 212
   at Greenshot.Addons.Core.ImageOutput.SaveWithDialog(ISurface surface, ICaptureDetails captureDetails) in C:\.NETCoreUpgradeApps\AppSources\greenshot\src\Greenshot.Addons\Core\ImageOutput.cs:line 122
   at Greenshot.Destinations.FileWithDialogDestination.ExportCapture(Boolean manuallyInitiated, ISurface surface, ICaptureDetails captureDetails) in C:\.NETCoreUpgradeApps\AppSources\greenshot\src\Greenshot\Destinations\FileWithDialogDestination.cs:line 59
   at Greenshot.Addons.Core.AbstractDestination.ExportCaptureAsync(Boolean manuallyInitiated, ISurface surface, ICaptureDetails captureDetails) in C:\.NETCoreUpgradeApps\AppSources\greenshot\src\Greenshot.Addons\Core\AbstractDestination.cs:line 159
   at Greenshot.Addons.Core.AbstractDestination.<>c__DisplayClass42_0.<<ShowPickerMenu>b__6>d.MoveNext() in C:\.NETCoreUpgradeApps\AppSources\greenshot\src\Greenshot.Addons\Core\AbstractDestination.cs:line 367
--- End of stack trace from previous location ---
   at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__128_0(Object state)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

Actual Result for the Minimal Demo:

Get below exception: System.NotImplementedException: ComWrappers for type System.__ComObject not implemented.

Regression?

Yes

Verify Scenarios:

1). Windows10 RS5 x64+dotnet-sdk-7.0.100-preview.3.22118.7: Fail 2). Windows10 RS5 x64+dotnet-sdk-7.0.100-preview.3.22122.1: Fail 3). Windows10 RS5 x64+dotnet-sdk-7.0.100-preview.2.22114.1: Pass 4). Windows10 RS5 x64+dotnet-sdk-5.0.405-win-x64 (Default SDK): Pass

Known Workarounds

No response

Configuration

Application Name: Greenshot & NugetPackageExplorer OS: Windows 10 RS5 CPU: X64 .NET Build Number: dotnet-sdk-7.0.100-preview.3.22118.7

Github link for source code: https://github.com/greenshot/greenshot

App and App Source Checking at : https://devdiv.visualstudio.com/DevDiv/_workitems/edit/1487350

Other information

Findings:

When we create SaveFileDialog object, InitialDirectory will report an exception： InitialDirectory = @“C:\Users\v-zhiyang\Documents”

@dotnet-actwx-bot @dotnet/compat

[jkotas]

I am sure that it will repro with the latest daily build.

In case you need to download specific build of the SDK, the easiest way is to use dotnet-install script. For example, .\dotnet-install.ps1 -v 7.0.100-preview.3.22118.7. You can then find commit SHA for each .dll by looking at the .dll version resource.

[Ashley-Li]

Verified this issue with .NET SDK 7.0.100-preview.3.22179.4 build, this issue was fixed.