Done

demo15012025/RegJhuri.axaml

@@ -51,7 +51,10 @@
                 <TextBlock Text="Повтор пароля:" VerticalAlignment="Top" Foreground="Black"/>
                 <TextBox Width="250" HorizontalAlignment="Left" Watermark="Re-enter password" x:Name="TextRePassword"/>
     
-                <CheckBox Content="Видимый пароль" HorizontalAlignment="Right" Foreground="Black"/>
+                <!-- <CheckBox Content="Видимый пароль" HorizontalAlignment="Right" Foreground="Black"/> -->
+                <CheckBox Content="Видимый пароль" HorizontalAlignment="Right" Name="PasswordVisibilityCheckBox" Checked="PasswordVisibilityCheckBox_Checked" Unchecked="PasswordVisibilityCheckBox_Unchecked"/>
+                
+                <TextBlock x:Name="PasswordErrorText" Foreground="Red" IsVisible="False"/>
     
                 <StackPanel Orientation="Horizontal" HorizontalAlignment="Right" Spacing="10">
                     <Button Content="Ok" HorizontalAlignment="Right" Click="OkButton_OnClick" Foreground="Black" Background="LightGray"/>

demo15012025/RegJhuri.axaml.cs

@@ -98,8 +98,16 @@ public partial class RegJhuri : Window
         var returnPassword = TextPassword.Text;
         var returnPassword2 = TextRePassword.Text;
         if (returnPassword != returnPassword2)
+            
+            if (returnPassword != returnPassword2)
+            {
+                Console.WriteLine("Пароли не совпадают.");
+                return;
+            }
+
+        if (!ValidatePassword(returnPassword))
         {
-            Console.WriteLine("Пароли не совпадают.");
+            Console.WriteLine("Пароль не соответствует требованиям.");
             return;
         }
 
@@ -160,4 +168,43 @@ public partial class RegJhuri : Window
             return null;
         }
     }
+    
+    private bool ValidatePassword(string password)
+    {
+        if (password.Length < 6)
+        {
+            PasswordErrorText.Text = "Пароль должен быть не менее 6 символов.";
+            PasswordErrorText.IsVisible = true;
+            return false;
+        }
+
+        if (!password.Any(char.IsDigit))
+        {
+            PasswordErrorText.Text = "Пароль должен содержать хотя бы одну цифру.";
+            PasswordErrorText.IsVisible = true;
+            return false;
+        }
+
+        if (!password.Any(char.IsLetter))
+        {
+            PasswordErrorText.Text = "Пароль должен содержать хотя бы одну букву.";
+            PasswordErrorText.IsVisible = true;
+            return false;
+        }
+
+        PasswordErrorText.IsVisible = false;
+        return true;
+    }
+    
+    private void PasswordVisibilityCheckBox_Checked(object sender, RoutedEventArgs e)
+    {
+        TextPassword.PasswordChar = '\0';
+        TextRePassword.PasswordChar = '\0';
+    }
+
+    private void PasswordVisibilityCheckBox_Unchecked(object sender, RoutedEventArgs e)
+    {
+        TextPassword.PasswordChar = '•';
+        TextRePassword.PasswordChar = '•';
+    }
 }

demo15012025/obj/Debug/net8.0/demo15012025.AssemblyInfo.cs

@@ -13,7 +13,7 @@ using System.Reflection;
 [assembly: System.Reflection.AssemblyCompanyAttribute("demo15012025")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+fe0ba9320c7b42e3e952670b2be10fb55490eb04")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+1057a643f8eed5ef9fa1dce6f12c003e060abdd6")]
 [assembly: System.Reflection.AssemblyProductAttribute("demo15012025")]
 [assembly: System.Reflection.AssemblyTitleAttribute("demo15012025")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]

demo15012025/obj/Debug/net8.0/demo15012025.AssemblyInfoInputs.cache

@@ -1 +1 @@
-9be47889b8d73cd0463d35e7868addd6cbb3ce57cb06c77fc2cd288c4821de5c
+4588be067bf91c0cab9d42363e9d335da1e75434b3d2935fdcac2bcc10f05682