* Fix rare crash when character set is null or empty

Author: CodeDead

Advanced PassGen/Properties/AssemblyInfo.cs

@@ -51,5 +51,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.5.0.0")]
-[assembly: AssemblyFileVersion("1.5.0.0")]
+[assembly: AssemblyVersion("1.5.1.0")]
+[assembly: AssemblyFileVersion("1.5.1.0")]

Advanced PassGen/Windows/MainWindow.xaml.cs

@@ -189,6 +189,12 @@ private async void BtnGenerate_Click(object sender, RoutedEventArgs e)
             if (TxtAmount.Value == null) return;
             if (TxtRandomSeed.Value == null) return;
 
+            if (charSet.Length == 0)
+            {
+                MessageBox.Show("Character set cannot be empty!", "Advanced PassGen", MessageBoxButton.OK, MessageBoxImage.Error);
+                return;
+            }
+
             _generator = new PasswordGenerator(charSet, minValue, maxValue + 1, (int) TxtAmount.Value, (int) TxtRandomSeed.Value);
             List<Password> passwords = await _generator.GeneratePasswords();