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HandyControl/doc/source/handycontrol/attach/passwordBoxAttach/index.md
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---
title: PasswordBoxAttach密码框专用
---
# 属性
该部分附加属性,仅仅适用于`HandyControl`自定义控件`hc:PasswordBox`以及部分`HandyControl`自带的`PasswordBox`的样式
| 名称 | 用途 |
| -------------- | -------- |
| IsMonitoring | 是否监测 |
| PasswordLength | 密码长度 |
# 案例
对应`xaml`中添加`HandyControl`对应的命名空`xmlns:hc="https://handyorg.github.io/handycontrol"`
## IsMonitoring 是否监测
设定是否启用监听该`PasswordBox`控件,用于进行密码长度的判定和其他逻辑处理,单独使用无明显可视化效果
```xml
<hc:PasswordBox hc:PasswordBoxAttach.IsMonitoring="True"
Width="100"
Height="Auto"></hc:PasswordBox>
```
## PasswordLength 密码长度
当密码长度为0时,显示输入提示信息,录入密码,水印消失
```xml
<hc:PasswordBox hc:PasswordBoxAttach.IsMonitoring="True"
hc:PasswordBoxAttach.PasswordLength="10"
Width="100"
Height="Auto"
VerticalAlignment="Center"
hc:InfoElement.Placeholder="请输入密码"></hc:PasswordBox>
```
效果:
![PasswordAttach.Length](https://raw.githubusercontent.com/HandyOrg/HandyOrgResource/master/HandyControl/Doc/attach/PasswordAttach.Length.png)