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After converting WPF MS framework 4.8 project to net 8
the process.start(url) no longer works.

private void DG_Hyperlink_Click(object sender, RoutedEventArgs e)
{
Hyperlink link = (Hyperlink)e.OriginalSource;
Process.Start(link.NavigateUri.AbsoluteUri);


Quote:
System.ComponentModel.Win32Exception: "An error occurred trying to start process 'https://docs.microsoft.com/en-us/windows/communitytoolkit/mvvm/introduction' with working directory 'E:\Visual Studio\Code Project\DataGridPlus\DataGridPlus\bin\Debug\net8.0-windows'. Das System kann die angegebene Datei nicht finden."

=> cannot find related file

How do I fix this?

What I have tried:

Tried a variant for start url:

Hyperlink link = (Hyperlink)e.OriginalSource;
new ProcessStartInfo("start " + link.NavigateUri.AbsoluteUri);
Posted
Updated 21-Apr-24 5:57am
v2

Try setting UseShellExecute to true. This will use the default application to start the process. https://learn.microsoft.com/en-us/dotnet/api/system.diagnostics.processstartinfo.useshellexecute?view=net-8.0#system-diagnostics-processstartinfo-useshellexecute
 
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Comments
Jo_vb.net 21-Apr-24 13:22pm    
Tried

using (Process compiler = new Process())
{
compiler.StartInfo.FileName = "explorer.exe";

compiler.StartInfo.Arguments = link.NavigateUri.AbsoluteUri;
compiler.StartInfo.UseShellExecute = false;
compiler.StartInfo.RedirectStandardOutput = true;
//Console.WriteLine(compiler.StandardOutput.ReadToEnd());

compiler.WaitForExit();

Shows error:// "No process is associated with this object."


Found this solution (not default browser but it works)

Process.Start("explorer.exe", link.NavigateUri.AbsoluteUri);

Thanks for your help.
Pete O'Hanlon 21-Apr-24 13:36pm    
You set it to false in your code. It needs to be true.
Jo_vb.net 21-Apr-24 14:00pm    
Unfortunately with
compiler.StartInfo.UseShellExecute = true;
the same error happens as before.
Here is a working example:
C#
string link = "https://docs.microsoft.com/en-us/windows/communitytoolkit/mvvm/introduction";

Process? process = Process.Start(new ProcessStartInfo(link)
{
    UseShellExecute = true
});

process!.WaitForExit();

You can also see it in use in this .Net Core article: .NET Silent ClickOnce Installer for Winform & WPF in C# & VB[^]
 
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v2
Comments
Jo_vb.net 21-Apr-24 19:47pm    
Great + thanks.

Adjusted it and that works:

private void DG_Hyperlink_Click(object sender, RoutedEventArgs e)
{

Hyperlink link = (Hyperlink)e.OriginalSource;
Process? process = Process.Start(new ProcessStartInfo(link.NavigateUri.AbsoluteUri)
{
UseShellExecute = true
});

process!.WaitForExit();
}
Graeme_Grant 24-Apr-24 4:52am    
All good. I would have gone into more details however was on the way out the door to take the wife & kids camping...

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