How to use passchar conditionally in c# login form

Question

I have created a login form where by default it shows text 'enter username' in user name text field when one clicks on password text field and vice versa shows 'enter password' when clicked on username text field

Now I want to use pwd.passchar = "*" here. But password field doesn't shows 'enter password' as text but *****. It should display the text unless user starts typing actual password

Here is my code -

public Login()
    {
        InitializeComponent();

        if (pwd.Text == "enter password")
        {             
            // Don't show $$ in password text field
        }
        else
        {
            pwd.PasswordChar = '*';
        }
    }



private void textBox1_Click(object sender, EventArgs e)
    {
        uname.Text = string.Empty;

        if (string.IsNullOrWhiteSpace(pwd.Text))
        {
            pwd.Text = "enter password";
        }

    }

private void textBox2_Click(object sender, EventArgs e)
    {
        pwd.Text = string.Empty;

        if (string.IsNullOrWhiteSpace(uname.Text))
        {
            uname.Text = "enter username";

Please suggest changes...

What you really want is a "watermark" or "placeholder" text that disappears when the user starts typing. Trying to build this logic around every single textbox is going to be ugly and unmaintainable. You could follow [this answer](http://stackoverflow.com/a/836463/74757) for a way to decorate a text box, *any* textbox, with this functionality, with very little markup. — Cᴏʀʏ, Jul 08 '15 at 21:27

Pablo Fébolo · Accepted Answer · 2015-07-09T21:49:45.053

0

Play with empty string for PasswordChar and TextChanged event

in vb.net

Private Sub pwd_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles pwd.TextChanged
    If pwd.Text = "enter password" Then
        pwd.PasswordChar = ""
    Else
        pwd.PasswordChar = "*"
    End If
End Sub

in c#, probe this

    private void pwd_TextChanged(object sender, EventArgs e)
    {
        if (pwd.Text == "enter password")
            pwd.PasswordChar = Convert.ToChar(0);
        else if (pwd.Text == "")
            pwd.Text = "enter password";
        else
           pwd.PasswordChar = '*'; 
    }

edited Jul 09 '15 at 21:49

answered Jul 08 '15 at 21:55

Pablo Fébolo

106
1
4

I get error for (I think) the double quotes but then when I use single quotes ie pwd.PasswordChar = ' ', i get error - Empty character literal.. – james andy Jul 09 '15 at 15:08
Since I got my desired result playing with your code. I am going to upvote you answer. – james andy Jul 10 '15 at 17:43

score 0 · Answer 2 · answered Jul 09 '15 at 15:34

0

This worked for me -

if (pwd.Text == "enter password" || pwd.Text == "")
        {
            //Do nothing. Enter Password text will be seen
        }
        else
        {
            pwd.PasswordChar = '*';
        }

answered Jul 09 '15 at 15:34

james andy

59
1
10

How to use passchar conditionally in c# login form

2 Answers2