Invoke WPF application from Winform Application with parameters

Question

How to run/invoke a WPF application (.exe) from a Windows Forms ? I know it can be done like shown below:

 Process.Start(@"C:\ABC\WPF.exe");

But I want to send few parameters to the WPF Applications from the winform application. How to do it ?

Process.Start() has some overloads. One of them allows to supply the arguments. — Jimi
– Jimi, Commented Apr 13, 2019 at 16:35

Vikas Gupta · Accepted Answer · 2019-04-13 16:56:52Z

3

Refer to complete code from here

You can pass arguments from your winform app like

Process.Start(new ProcessStartInfo(@"C:\repos\WpfApp.exe", "Args from WinForms"));

and receive in WPF app like

public partial class App : Application
    {
        protected override void OnStartup(StartupEventArgs e)
        {
            base.OnStartup(e);
            if (e.Args.Length > 0)
            {
                MessageBox.Show($"You have passed:{e.Args.Length} arguments," +
                    $" value are {string.Join( ",",e.Args)}");
            }
        }
    }

edited Apr 13, 2019 at 16:56

answered Apr 13, 2019 at 16:51

Vikas Gupta

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3 Comments

Kuttan Over a year ago

I have 1 more doubt. The path of the wpf project exe cannot be hardcoded like this. We have a win form application [main application] and a wpf application. when running the winform application, at some point of time there is a need of invoking wpf application. at that time how we can speciy the path of the wpf application ?

Vikas Gupta Over a year ago

place your WPF App binaries in a folder in same path of your WinForm App and use relative path. "./WPFApp/Wpfapp.exe"

nam Over a year ago

@VikasGupta "./WPFApp/Wpfapp.exe" will not work. If you include the wpf binaries in the winform project, this should work: AppDomain.CurrentDomain.BaseDirectory + @"WPFApp\WpfApp.exe";

Dylan KAS · Accepted Answer · 2019-04-13 16:35:25Z

1

You can use the same method with a few parameters. So in your case

var procStart = System.Diagnostics.Process.Start(@"C:\ABC\WPF.exe", params);

answered Apr 13, 2019 at 16:35

Dylan KAS

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