Main.xaml.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Configuration;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -30,6 +31,27 @@ namespace ShanghaiEnvironmentalTechnology
             ImageBrush brush = new ImageBrush();
             brush.ImageSource = new BitmapImage(new Uri(imagePath, UriKind.Absolute));
             this.Background = brush;
+
+
+            // 设置语言选择框的默认选中项
+            string currentLanguage = ConfigurationManager.AppSettings["Language"] ?? "zh-CN";
+
+            foreach (ComboBoxItem item in cmbMaterial.Items)
+            {
+                if ((currentLanguage == "zh-CN" && item.Content.ToString() == "中文") ||
+                    (currentLanguage == "en-US" && item.Content.ToString() == "English"))
+                {
+                    cmbMaterial.SelectedItem = item;
+                    break;
+                }
+            }
+
+
+            if (!string.IsNullOrEmpty(currentLanguage))
+                ResourceManager.SwitchLanguage(currentLanguage);
+
+
+
         }
 
         /// <summary>
@@ -46,5 +68,24 @@ namespace ShanghaiEnvironmentalTechnology
 
             this.Close(); // 如果您希望在打开新窗口时关闭当前窗口
         }
+
+
+        private void cmbMaterial_SelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            string selectedText = (cmbMaterial.SelectedItem as ComboBoxItem)?.Content.ToString();
+
+            if (string.IsNullOrEmpty(selectedText))
+                return;
+
+            if (selectedText == "中文" || selectedText == "Chinese")
+            {
+                ResourceManager.SwitchLanguage("zh-CN");
+            }
+            else if (selectedText == "English")
+            {
+                ResourceManager.SwitchLanguage("en-US");
+            }
+
+        }
     }
 }