Call web-service on changeFocus or onChange of textfield in MVC's view

Hello there,

I am using ASP.NET MVC 1 with .NET 3.5 SP1.
I am trying to call a web-service whenever focus moves away from a textField and then populate another textField based upon the return value of web-service. i.e through Java script or something.

Secondly, I do not want to refresh the whole screen to display the result of called web-service. Is there a simple way to achieve the above 2 things.

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Hi Tech1Guy,
The first can be accomplished by adding attributes to the texbox.  The following library suggested on stack overflow seems to accomplish this:

The second can be accomplished using a MVC adaptation of an update panel from the ajax control toolkit.  Check out this link for more on that.

Let me know if you need any more information,

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