On a Postback event, a password typed inside a TextBox control gets lost.
To
prevent this follow below-
- Set
the password in the text box-
txtPassword.Text
="mypassword";
- Then
Add the below attribute to the text box control-
txtPassword.Text
="mypassword";
txtPassword.Attributes.Add["value", txtPassword.Text];
Note:
Keep in mind to add the attribute to textbox only after the password has been
set, else the password will not be preserved.