add password confirm dialogue

WingCryptWPF/MainWindow.xaml.cs

@@ -91,6 +91,8 @@ private bool DoEncrypt()
 			return false;
 		}
 
+		if (!ConfirmPassword()) return false;
+
 		Mouse.OverrideCursor = Cursors.Wait;
 
 		string headerPath = ((TreeViewItem)fileTreeView.Items[0]).Header.ToString();
@@ -116,10 +118,11 @@ private void ButtonEncrypt_Click(object sender, RoutedEventArgs e)
 		}
 		finally
 		{
-			fileTreeView.Items.Clear();
 			Mouse.OverrideCursor = null;
 		}
 
+		fileTreeView.Items.Clear();
+
 		MessageBox.Show("Encryption completed.", "Encryption Complete", MessageBoxButton.OK, MessageBoxImage.None);
 	}
 
@@ -274,10 +277,11 @@ private void ButtonEncryptAndDelete_Click(object sender, RoutedEventArgs e)
 		}
 		finally
 		{
-			fileTreeView.Items.Clear();
 			Mouse.OverrideCursor = null;
 		}
 
+		fileTreeView.Items.Clear();
+
 		MessageBox.Show("Encryption completed.", "Encryption Complete", MessageBoxButton.OK, MessageBoxImage.None);
 	}
 
@@ -307,4 +311,26 @@ private void ButtonDecryptAndDelete_Click(object sender, RoutedEventArgs e)
 			Mouse.OverrideCursor = null;
 		}
 	}
+
+	private bool ConfirmPassword()
+	{
+		try
+		{
+			string confirm = PasswordDialog.GetPassword();
+
+			if (confirm == passwordTextBox.Password)
+			{
+				return true;
+			}
+			else
+			{
+				MessageBox.Show($"Passwords did not match. Please try again.", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
+				return false;
+			}
+		}
+		catch
+		{
+			return false;
+		}
+	}
 }

WingCryptWPF/PasswordDialog.xaml

@@ -0,0 +1,40 @@
+<Window x:Class="WingCryptWPF.PasswordDialog"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:WingCryptWPF"
+        mc:Ignorable="d"
+        Title="Confirm Password" 
+		Height="75" 
+		Width="325"
+		ResizeMode="CanMinimize"
+		SizeToContent="WidthAndHeight">
+    <Grid>
+		<Grid.RowDefinitions>
+			<RowDefinition Height="5"/>
+			<RowDefinition Height="*"/>
+			<RowDefinition Height="*"/>
+		</Grid.RowDefinitions>
+
+		<Grid Grid.Row="1">
+			<Grid.ColumnDefinitions>
+				<ColumnDefinition Width="*"/>
+				<ColumnDefinition Width="220"/>
+			</Grid.ColumnDefinitions>
+
+			<TextBlock Grid.Column="0" Text="Confirm Password:" Padding="5,0" Margin="0, 5"/>
+			<PasswordBox Grid.Column="1" x:Name="passwordTextBox" Grid.Row="0" Margin="5,0" Height="20" Width="200"/>
+		</Grid>
+
+		<Grid Grid.Row="2">
+			<Grid.ColumnDefinitions>
+				<ColumnDefinition Width="*"/>
+				<ColumnDefinition Width="150"/>
+			</Grid.ColumnDefinitions>
+
+			<Button x:Name="confirmButton" Grid.Column="1" Margin="5, 5" Padding="5,0" Click="ButtonConfirm_Click">Confirm</Button>
+		</Grid>
+
+	</Grid>
+</Window>

WingCryptWPF/PasswordDialog.xaml.cs

@@ -0,0 +1,43 @@
+namespace WingCryptWPF;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+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.Shapes;
+using Microsoft.Win32;
+/// <summary>
+/// Interaction logic for PasswordDialog.xaml
+/// </summary>
+public partial class PasswordDialog : Window
+{
+	public PasswordDialog()
+	{
+		InitializeComponent();
+	}
+
+	public string Password => passwordTextBox.Password;
+
+	public static string GetPassword()
+	{
+		PasswordDialog passwordDialog = new();
+
+		if (passwordDialog.ShowDialog() == true)
+		{
+			return passwordDialog.Password;
+		}
+		else throw new Exception("Cancelled.");
+	}
+
+	private void ButtonConfirm_Click(object sender, RoutedEventArgs e)
+	{
+		DialogResult = true;
+	}
+}