How to save password text on postback?

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3.00/5 (1 vote)

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i have a problem here..hope anyvody can try to sol it for me...
i am using VS2010 ....i am trying to create a registration page.
I have following controls to register

1) email id(textbox)
2) password(textbox)
3) re-enter password(textbox)
4) security question drop-down list(autopostback =true)

In this DDlist, when ever i choose 'set your own question', a new textbox appears.
However when the page posts back, the password written in the password text gets disappeared.....

What did i tried :
1) tried to save the password text in session...no joy..

please help..job in danger...thx

Posted 5-May-11 22:48pm

shikhar gilhotra

Updated 6-May-11 6:44am

Sergey Alexandrovich Kryukov

v2

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-05-06T04:19:00

Solution 5

Whatever you do, never save password anywhere! This is unsafe. Through a postback, the unencrypted password goes through network. This is dangerous enough.

(I hope you also understand the password should not be stored anywhere. You don't need a password itself for authentication as you can always compare its encrypted a hashed form which can be stored on the server.)

—SA

Posted 6-May-11 4:19am

Sergey Alexandrovich Kryukov

Comments

Albin Abel 7-May-11 17:16pm

I think my vote can transit through wire/ wireless.

Sergey Alexandrovich Kryukov 7-May-11 20:03pm

Thank you. It could. :-)
--SA

karan joshua · Answer 2 · 2011-05-05T22:55:00

Solution 1

I think you can make autopostback=false;
try this:

this.EditButton.Attributes["onClick"] = "return false;";

this may help u

Posted 5-May-11 22:55pm

karan joshua

koolprasad2003 · Answer 3 · 2011-05-05T22:56:00

Solution 2

By default the password control can't save its value between postbacks
use the following way.

Just add the line txtPassword.Attributes.Add("Value", txtPassword.Text) to the button click event that trigger the postback and now is working.

-happy programming

Posted 5-May-11 22:56pm

koolprasad2003

Mahendra.p25 · Answer 4 · 2011-05-05T22:56:00

Solution 3

try this

VB

In Page_Load (not under a IsPostback check)
ViewState("_Pass") = tbPassword.Text
In Page_PreRender
tbPassword.Attributes.Add("value", ViewState("_Pass"))

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