VB PasswordChar Property Guide

In VB, PasswordChar is a control property used to specify the character displayed in a password box. Its main purpose is to hide the password characters entered by the user to enhance the security of the password.

The PasswordChar property can be set to any character, commonly using “*” or “●” to represent the password character. When the user types text in the password box, the actual characters will be replaced with the character specified in the PasswordChar property.

Here is a sample code that demonstrates how to use the PasswordChar property in VB.

TextBox1.PasswordChar = "*" ' 将密码框中的字符替换为“*”

In the example above, TextBox1 is a control named TextBox, and its PasswordChar property is set to “”. This means that when a user enters a password in this text box, the actual characters entered will be replaced by the “” character.

The purpose of doing this is to prevent others from seeing the input password on the screen and enhance the security of the password.