Textbox characters

Kevin Brigitta

15y2.2k

Hi,

I have a textbox where I will fill in a password (security is not important in this case).

But I do want to display asteriks (*) when I fill in this textbox.

I found a bunch of topics indicating that the textbox.passwordchar property should be changed, but I'm not able to find that property...

I noticed that there is a "passwordbox" control in VS2010, but it doesn't have the property pwbox.text or pwbox.content or anything like that...

Any advice on this?

Thanks in advance!

6 Replies

Know the answer? Post it — somebody with the same question will find it here.

Kevin Brigitta15y ago
@ Murali:
I adapted the datatype in my database, and it works perfectly!
Thank you very much!
Kevin Brigitta15y ago
@ Vulpes:
That is indeed possible, and graphically it is exactly what I need. The problem is that the value then no longer matches with the data I extracted from my database...
Thanks for your input, though!
Vulpes15y ago
I guess you could make a textbox into a password box with code such as this:

private char[] password = new char[20]; // say

private void textBox1_TextChanged(object sender, TextChangedEventArgs e)
{
string text = textBox1.Text;
for(int i = 0; i < text.Length; i++)
{
if (text[i] != '*') password[i] = text[i];
}

if (password.Length > text.Length)
{
for (int i = text.Length; i < password.Length; i++)
{
password[i] = '\0';
}
}

textBox1.Text = new string('*', text.Length);
textBox1.CaretIndex = text.Length;

}
15y ago
You need to do case sensitive comparision with LINQ to SQL queries.

Please try the following.

http://yourdotnetdesignteam.blogspot.com/2010/06/case-sensitive-linq-to-sql-queries.html

Hope this helps you
Kevin Brigitta15y ago
That seems a little complicated for what I would like to do.
I just want to display the filled in characters as asteriks...

I also noticed, that when filling in a password, it is also accepted when putting it all in lowercase, while on my sql server side, it is clear that several characters are in uppercase.

My code for the function behind the login:

//Login Screen --> Click on "Login"
private void btn_Login_Click(object sender, RoutedEventArgs e)
{
      VerifyLogin(tb_Username.Text, tb_Password.Text);
}

//Method
public bool VerifyLogin(string username, string password)
        {
            //Connection to database
            DB_DataContext MyDataBase = new DB_DataContext();
            var qry_LoginCredentials = from TblStaff in MyDataBase.TblStaffs
                                                    where (TblStaff.Username == username.ToLower()
                                                    && TblStaff.Password == password)
                                                    select TblStaff;

            if (qry_LoginCredentials.Count() != 0)
            {
                return true;
            }
            MessageBox.Show("Username incorrect!");
            return false;
        }
Vulpes15y ago
There is in fact a dedicated PasswordBox control.

Check out this MSDN link (http://msdn.microsoft.com/en-us/library/system.windows.controls.passwordbox.passwordchar.aspx) and this tutorial (http://www.wpftutorial.net/PasswordBox.html).