WPF Console

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using System.Windows;

namespace WpfBlankProjShalvin
{
    class Class1 : Window 
    {
        [STAThread]
        public static void Main()
        {
            Application app = new Application();
            app.Run(new Class1 { Title = "Shalvin", WindowStartupLocation = WindowStartupLocation.CenterScreen, Width = 300, Height = 200  });
        }
    }
}

WPF StackPanel and Button Click

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using System.Windows;

using System.Windows.Controls;

namespace WpfApplication1
{
    class Class1 : Window
    {
        [STAThread]
        public static void Main()
        {
            Application app = new Application();
            app.Run(new Class1());
        }

        StackPanel stp;

        Button btn;
        public Class1()
    {
 stp = new StackPanel();
 this.Content = stp;

 btn = new Button { Content = "Shalvin" };
            btn.Click += new RoutedEventHandler(btn_Click);
 stp.Children.Add(btn);

    }


        private void btn_Click(Object sender, RoutedEventArgs e)
        {
            MessageBox.Show("Hello");
        }
    }
}

Grid RowDefinition

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using System.Windows;

using System.Windows.Controls;

namespace WpfGrid
{
    class Class1 : Window
    {
        [STAThread]
        public static void Main()
        {
            Application app = new Application();
            app.Run(new Class1());
        }

        Grid grd;

        TextBlock tbl;
        RowDefinition rd;
        
        public Class1()
        {
            grd = new Grid { ShowGridLines = true };
            this.Content = grd;
            rd = new RowDefinition ();
            grd.RowDefinitions.Add(rd);
            
            rd = new RowDefinition();
            grd.RowDefinitions.Add(rd);

            tbl = new TextBlock { Text = "Name" };
            grd.Children.Add(tbl);
        }

    }
}