I need to create a checkbox that will reveal password characters in two PasswordBox controls (Password and Confirm Password respectively). So, when this checkbox is checked PasswordBox must show password instead of "*****". Actually, I'm asking about property (if it exists) that controls this behavior of PasswordBox. I didn't find it on MSDN (or didn't understand).
You have to use TextBox to show characters. You can put them over your PasswordBoxes and bind Text to Password and Visibility to IsChecked of CheckBox