Cannot clear UnsafePassword in plaintext state by vm code

[JeremyWu917]

Describe the bug
After binding UnsafePassword to hc:PasswordBox, the value of UnsafePassword cannot be cleared by backend code in plaintext state, but can be cleared by ClearButton in frontend. And in ciphertext state, everything is ok.

Expected behavior
The value should be cleared regardless of whether it is in plaintext or ciphertext state

Screenshots

Environment (please complete the following information):

• .net: [NET 5.0]
• IDE [VS2019 16.8.4]
• HC Version [3.0.0]

Additional context
Here is the partial code

• .XAML
  <hc:PasswordBox hc:InfoElement.Placeholder="请输入密码" IsSafeEnabled="False" ShowClearButton="True" ShowEyeButton="True" UnsafePassword="{Binding Password}" />
• VM
  private string _Password;
public string Password { get { return _Password; } set { _Password = value; this.RaisePropertyChanged(nameof(Password)); } }
public DelegateCommand CancelCommand { get; set; } private void Cancel(object parameter) { Password = ""; }

[JeremyWu917]

@ghost1372
pls help to check and advise
many thx

[ghost1372]

@JeremyWu917
I think it is a binding problem, You can use the internal command to clear

<Button Content="clear" Command="hc:ControlCommands.Clear" CommandTarget="{Binding ElementName=xx}"/>
        <hc:PasswordBox Name="xx" hc:InfoElement.Placeholder="请输入密码" IsSafeEnabled="False" ShowClearButton="True" ShowEyeButton="True" UnsafePassword="{Binding Password}" />

[JeremyWu917]

@ghost1372

Thanks for your reply.
It's works for me if I use the the internal command to clear, but in this case I wanna clear all params not just one element, and most of the time there is more than one element to clear.
And it make no sence cause other controls with the same binding method do not have this problem.
Thanks

[JeremyWu917]

Hi @NaBian @ghost1372

There is still a concern not about Clear , it is Set value, cause when I set ShowEyeButton as true, I cannot set UnsafePassword in vm, means FrameworkPropertyMetadataOptions.BindsTwoWayByDefault not work any more.
Please review, thanks.

BTW, I declare Password in vm as below

   `private string _Password;
    public string Password
    {
        get { return _Password; }
        set
        {
            _Password = value;
            this.RaisePropertyChanged(nameof(Password));
        }
    }`

[NaBian]

i can not reproduce your problem, can you provide a demo.

[JeremyWu917]

@NaBian

Thanks for your replay.

Here is the demo.

I cannot copy value from param one to param two when passwordbox's eyes on, means I cannot perform a set property.

Thanks

[NaBian]

还是无法复现