added some practice examples

20241107/filedialog/MainWindow.xaml.cs

@@ -0,0 +1,46 @@
+using Microsoft.Win32;
+using System.Text;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace filedialog
+{
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            InitializeComponent();
+        }
+
+        private void btnFire_Click(object sender, RoutedEventArgs e)
+        {
+            OpenFileDialog ofd = new OpenFileDialog();
+            ofd.Filter = "Image files |*.bmp;*.jpg;*.png";
+            ofd.FilterIndex = 1;
+            bool?success = ofd.ShowDialog();
+
+            if (success == true)
+            {
+                string path = ofd.FileName;
+                
+                tbInfo.Text = path;
+
+                imageholder.Source = new BitmapImage(new Uri(path));
+            }
+            else
+            {
+                //no
+            }
+        }
+    }
+}