WPF value命令获取passwordbox值

Question

我有一个带有这个触发器的Passwordbox：

<PasswordBox>
    <i:Interaction.Triggers>
        <i:EventTrigger EventName="PasswordChanged">
            <i:InvokeCommandAction Command="{Binding PasswordChanged}" />
        </i:EventTrigger>
    </i:Interaction.Triggers>
</PasswordBox>

如何在我的RelayCommand中获取我的PasswordBox的内容？

这是我的中继命令：

PasswordChanged = new RelayCommand<object>(param => this.GoPasswordChanged());

private void GoPasswordChanged()
{      
}

Answer 1

我找到了解决方案，我只需要改变：

<i:InvokeCommandAction Command="{Binding PasswordChanged}" />

至：

 <i:InvokeCommandAction Command="{Binding PasswordChanged}" CommandParameter="{Binding ElementName=PasswordBoxInput}" />

和：

PasswordChanged = new RelayCommand<object>(param => this.GoPasswordChanged(param));

private void GoPasswordChanged(param)
        {

        }

至：

private void GoPasswordChanged(object param)
        {
            var passwordBox = param as PasswordBox;
            var password = passwordBox.Password;
        }