C#•2y ago

✅ Lag after closing folder dialog in console application

I need to raise a folder dialog within a console application. It works if I add the

[STAThread

[STAThread

[STAThread

[STAThread attribute to the main method. However, there’s consistently a 3-5 second delay after the folder dialog is closed.

This Stack Overflow question bring up a similar issue for

OpenFileDialog

OpenFileDialog

OpenFileDialog

OpenFileDialog but without a concrete resolution.
https://stackoverflow.com/questions/41894044/closing-a-openfiledialog-causes-application-to-hang-for-3-4-seconds

Is there any way to remove or minimize the delay after the folder dialog is closed?

Project Settings

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net8.0-windows</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
    <UseWPF>true</UseWPF>
  </PropertyGroup>
</Project>

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net8.0-windows</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
    <UseWPF>true</UseWPF>
  </PropertyGroup>
</Project>

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net8.0-windows</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
    <UseWPF>true</UseWPF>
  </PropertyGroup>
</Project>

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net8.0-windows</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
    <UseWPF>true</UseWPF>
  </PropertyGroup>
</Project>

Code

using Microsoft.Win32;
 
internal class Program
{
    [STAThread]
    private static void Main()
    {
        OpenFolderDialog folderDialog = new();
 
        if (folderDialog.ShowDialog() is true)
        {
            string mainFolderPath = folderDialog.FolderName;
            Console.WriteLine($"Selected folder: {mainFolderPath}");
        }
 
        Console.WriteLine("\nPress any key to continue...");
        Console.ReadKey();
    }
}

using Microsoft.Win32;
 
internal class Program
{
    [STAThread]
    private static void Main()
    {
        OpenFolderDialog folderDialog = new();
 
        if (folderDialog.ShowDialog() is true)
        {
            string mainFolderPath = folderDialog.FolderName;
            Console.WriteLine($"Selected folder: {mainFolderPath}");
        }
 
        Console.WriteLine("\nPress any key to continue...");
        Console.ReadKey();
    }
}

using Microsoft.Win32;
 
internal class Program
{
    [STAThread]
    private static void Main()
    {
        OpenFolderDialog folderDialog = new();
 
        if (folderDialog.ShowDialog() is true)
        {
            string mainFolderPath = folderDialog.FolderName;
            Console.WriteLine($"Selected folder: {mainFolderPath}");
        }
 
        Console.WriteLine("\nPress any key to continue...");
        Console.ReadKey();
    }
}

using Microsoft.Win32;
 
internal class Program
{
    [STAThread]
    private static void Main()
    {
        OpenFolderDialog folderDialog = new();
 
        if (folderDialog.ShowDialog() is true)
        {
            string mainFolderPath = folderDialog.FolderName;
            Console.WriteLine($"Selected folder: {mainFolderPath}");
        }
 
        Console.WriteLine("\nPress any key to continue...");
        Console.ReadKey();
    }
}

Stack Overflow

Closing a OpenFileDialog causes application to hang for 3-4 seconds

In my WPF application which uses the Caliburn.Micro and MahApps.Metro frameworks, i open instances of OpenFileDialog from the System.Windows.Forms namespace. After opening and closing this dialog, ...

leowest•2/21/24, 9:36 PM

@Mayka what about using FolderBrowserDialog

leowest•2/21/24, 9:39 PM

MaykaOP•2/21/24, 9:49 PM

@leowest I seem to have the same issue with FolderBrowserDialogFolderBrowserDialog. I also tried running the compiled exe outside of VS in case the debugger was to blame, but it has the same lag.

leowest•2/21/24, 9:54 PM

sounds like an isolated issue you're having

leowest•2/21/24, 10:14 PM

yeah I tried a few different things but I cannot reproduce your delay

MaykaOP•2/21/24, 10:17 PM

@leowest what OS version are you on? Trying to figure out if this is an OS issue.

leowest•2/21/24, 10:17 PM

MaykaOP•2/21/24, 10:24 PM

@leowest well we’re actually on the exact same OS build, so I guess that’s not it :OOF:

leowest•2/21/24, 10:28 PM

and I have not reinstalled since 2020 so

leowest•2/21/24, 10:32 PM

@Mayka do u have antivirus that could be potentially doing some realtime check

leowest•2/21/24, 10:32 PM

and it could maybe catch that build and delay it

leowest•2/21/24, 10:32 PM

some times AV does weird stuff

MaykaOP•2/21/24, 10:41 PM

@leowest this is a work computer, but it’s definitely an issue with mine specifically. I had my coworker try the same exe and they didn’t have a delay either. UGH!! I hate when I chase my tail after the completely wrong thing. My hunch tells me it has to do with the same issue I experience where if I create a new folder or delete a file in File Explorer, the changes never seem to show up for me until I hit the Refresh button. I thought maybe it was my local icon cache, but deleting that didn’t fix the issue.

leowest•2/21/24, 10:41 PM

@Mayka can u try resetting the theme of your windows?

leowest•2/21/24, 10:41 PM

kind random but

MaykaOP•2/22/24, 8:22 AM

@leowest after extensive troubleshooting, OneDrive seems likely to have been the culprit, possibly due to a corrupted SharePoint shortcut. Since removing it, File Explorer is auto-synching again with file system changes, and my C# code is no longer hanging after I’ve closed the folder dialog.

Thank you very much for your help with this! Determining it was a setup issue rather than a C# issue helped lead me down a path toward a solution.

MMayka @leowest after extensive troubleshooting, OneDrive seems likely to have been the...

leowest•2/22/24, 2:51 PM

no worries thanks for letting me know what the cause was dont forget to throw a /close here

✅ Lag after closing folder dialog in console application

Project Settings

Code

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