2009 December | ForDevs

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Archive for December, 2009

How to create an OpenID and use it ?

December 20th, 2009

Kathirvel KG

OpenID

Fed up with creating new accounts for multiple websites, here comes OpenID for the rescue. It allows you to use an existing account to sign in to multiple websites without ‘sign up’. OpenID replaces the common login process that uses a login name and password for every website.

An OpenID is in the form of a unique URL (e.g., http:\\me.yahoo.com\testid), which is authenticated by the user’s OpenID provider. Some of the websites who supports, allows and provides OpenID are Yahoo, Google, ZOHO, Microsoft, AOL, PayPal, Verisign. The OpenID doesn’t rely on a central authority to authenticate the user. The OpenID protocol leaves the type of authentication to the provider, the authentication forms may include passwords and biometrics.

Let us create a OpenID with Yahoo!

Go to Yahoo OpenID website Yahoo! OpenID
Get Started, login with your Yahoo ID
Yahoo! OpenID
Now Yahoo will display the OpenID URL (identifier) generated for you
OpenID generated
To create custom identifier click on ‘Show customization Options‘. Check for available identifiers, Yahoo recomends not to use mail id as part of the openID as it may expose our mail id. click on ‘Save My Customization‘.
Custom OpenID

Let us check how to use the OpenID.

Go to Live Journal, click on ‘Login with OpenID‘ in the login page to open the OpenID login page.
Enter your OpenID and click Login (I don’t have account in Live Journal)
This will forward it to Yahoo, where you need to login with Yahoo ID
Now you have logged into Live Journal using OpenID.

The major advantage of an OpenID is you need not create a new account for every website you visit, instead create an OpenID and use the same account to log into all websites you visit.

Popularity: 21% [?]

Posted in How-to, Internet, Tech Stuff, Uncategorized

Tags: Authentication, OpenID

No Comments »

How to set border color of a panel in c#

December 7th, 2009

joy

In c# for panel there no property to set border color directly.We can only set the border style using BorderStyle.

To set the border color of a panel,

Step 1 : Set BorderStyle property to None.

Step 2 : Draw a rectangle and set the pen color in paint event of the panel

private void panelpanelbordercolor1_Paint(object sender, PaintEventArgs e)
{
  e.Graphics.DrawRectangle(Pens.Red,
  e.ClipRectangle.Left,
  e.ClipRectangle.Top,
  e.ClipRectangle.Width - 1,
  e.ClipRectangle.Height -1);
  base.OnPaint(e);
}