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How to: Get the Command Line Arguments

This example shows how to get the command line arguments that were passed to an application.

Example

The following code demonstrates how to use Application and the StartupUri event to get the command line arguments.

<Application
    x:Class="CSharp.App"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Startup="app_Startup"
    >
</Application>

using System;
using System.Windows;

namespace CSharp
{
    public partial class App : Application
    {
        void app_Startup(object sender, StartupEventArgs e)
        {
            // If no command line arguments were provided, don't process them
            if (e.Args.Length == 0) return;

            // Get command line arguments
            foreach (string argument in e.Args)
            {
                switch (argument)
                {
                    case "arg1":
                        // Process arg 1
                        break;
                    case "arg2":
                        // Process arg 2
                        break;
                    case "arg3":
                        // Process arg 3
                        break;
                }
            }
        }
    }
}

For an example of retrieving and using command line arguments, see Processing Command Line Arguments Sample.

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