How to set a text box for inputing password in win

问题:

how to set a text box for inputing password in winforms? Also I want to show "Capslock is ON" popup if capslock is on.

I want something like

<input type="password" /> in HTML.

回答1:

The best way to solve your problem is to set the UseSystemPasswordChar property to true. Then, the Caps-lock message is shown when the user enters the field and the Caps-Lock is on (at least for Vista and Windows 7).

Another alternative is to set the PasswordChar property to a character value (* for example). This also triggers the automatic Caps-Lock handling.

回答2:

To set a text box for password input:

textBox1.PasswordChar = '*';

you can also change this property in design time by editing properties of the text box.

To show if "Capslock is ON":

using System;  
using System.Windows.Forms;  
//...
if (Control.IsKeyLocked(Keys.CapsLock)) {  
    MessageBox.Show("The Caps Lock key is ON.");  
}  

回答3:

To make PasswordChar use the ● character instead:

passwordTextBox.PasswordChar = '\u25CF';

回答4:

Just set the TextBox.PasswordChar property to '*'.

回答5:

Just set the property of textbox that is PasswordChar and set the * as a property of textbox. That will work for password.

  passwordtextbox.PasswordChar = '*';

where passwordtextbox is the text box name.

回答6:

private void cbShowHide_CheckedChanged(object sender, EventArgs e)
{
    if (cbShowHide.Checked)
    {
        txtPin.UseSystemPasswordChar = PasswordPropertyTextAttribute.No.Password;
    }
    else
    {
        //Hides Textbox password
        txtPin.UseSystemPasswordChar = PasswordPropertyTextAttribute.Yes.Password;
    }
}

Copy this code to show and hide your textbox using a checkbox

回答7:

I know the perfect answer:

1. double click on The password TextBox.
2. write your textbox name like textbox2.
3. write PasswordChar = '*';.

4. I prefer going to windows character map and find a perfect hide like ●.

   example:TextBox2.PasswordChar = '●';
   

回答8:

you can use like these "txtpassword.PasswordChar = '•';"

the use location is ...

 namespace Library_Management_System
    {
        public partial class Login : Form
        {
            public Login()
            {
                InitializeComponent();
                txtpassword.PasswordChar = '•';