Run program after wpf windows form appears

Question

Hello i have problem with wpf (c#) project. this is my source

namespace WpfApplication1
{
    /// 

    /// Interaction logic for MainWindow.xa         


        

Answer 1

You should write your code in the Window_Load event:

public MainWindow()
{
    InitializeComponent();
    Loaded += MainWindow_Loaded;
}

void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
    MessageBox.Show("Test");
}

EDIT: To work with longer operations like (used a function with more than 10 function inside as you wanted) you could use ThreadPool like this:

void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
    ThreadPool.QueueUserWorkItem(_ =>
    {
        //Longer Process (//set the operation in another thread so that the UI thread is kept responding)
        Dispatcher.BeginInvoke(new Action(() =>
        {                    
            //use the Dispatcher to "return" to the UI thread
            //To change the UI elements like label you should put them here like : label1.Text = ""; 
        }));
    });
}