To display password characters in *

Question

4.00/5 (1 vote)

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Hi,

I have written the code to display my password characters in "*" but it is also consediring "enter" as one character for my password. Can you please help me with this?
Below is my code:

C#

Console.Write("Enter Password :");
ConsoleKeyInfo key;String pwd="";
do
{
    key = Console.ReadKey(true);

    if (key.Key != ConsoleKey.Backspace)
    {
        pwd += key.KeyChar;
        Console.Write("*");                                    
    }

} while (key.Key != ConsoleKey.Enter);

pwd = Console.ReadLine();

Please let me know where i am going wrong.
Note:
I dont have any method or something returning the password.

Thanks in advacne.

Posted 17-Jan-13 21:36pm

archies_gall

Updated 17-Jan-13 21:48pm

lukeer

v3

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Comments

archies_gall 18-Jan-13 3:45am

I used while like this:
Console.Write("Password :");
ConsoleKeyInfo key;
while (key.Key != ConsoleKey.Enter)
{
key = Console.ReadKey(true);

if (key.Key != ConsoleKey.Backspace)
{
pwd += key.KeyChar;

Console.Write("*");

}

}
pwd = Console.ReadLine();

while building i am getting error as "Use of unassigned local variable 'key'"
what value should be assigned to key? it doesnt accept null value.

3 solutions

Solution 1

use the while loop instead of do while ... it will solve your problem

Posted 17-Jan-13 21:39pm

Hasham Ahmad

Solution 2

Change your code something like this:

C#

Console.Write("Enter Password :");
ConsoleKeyInfo key; String pwd = "";
do
{
    key = Console.ReadKey(true);

    if (key.Key != ConsoleKey.Backspace && key.Key!=ConsoleKey.Enter)
    {
        pwd += key.KeyChar;
        Console.Write("*");
    }

} while (key.Key != ConsoleKey.Enter);

Console.ReadLine();
Console.WriteLine(pwd);
Console.ReadKey();

OR
If you want to use while loop assign the value of key like this:

C#

ConsoleKeyInfo key='\0';

Good Luck
Enjoy!

Posted 17-Jan-13 22:31pm

Shanu2rick

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Mohd. Mukhtar · Accepted Answer · 2013-01-17T22:39:00

Write your code as below.

C#

Console.Write("Password :"); 
ConsoleKeyInfo key;
key=Console.ReadKey(true);
while (key.Key != ConsoleKey.Enter) 
{ 
   if (key.Key != ConsoleKey.Backspace) 
   { 
     pwd += key.KeyChar; 
     Console.Write("*"); 
   } 
   key = Console.ReadKey(true); 
} 
pwd = Console.ReadLine();

This may help you.