Cannot add duplicate collection entry of type 'add' with unique key attribute 'name' set to 'RewriteModule' - HTTP Error 500.19 - Internal Server Err

When I uploaded the site to the server, I got an HTTP Error 500.19 - Internal Server Error which says "Cannot add duplicate collection entry of type 'add' with unique key attribute 'name' set to 'RewriteModule'". Error was in the following line in web.config

I got the solution to change the application config file from the following link:
http://support.microsoft.com/kb/942055

But, hosting providers won't allow that on server.

I added the following under  where the RewriteModule is added

Also, there were some virtual directory issues. Hosting provider
changed that. Now it is working.

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Issue when using AsyncFileUpload control

I tried to use AsyncFileUpload control in a page. The AsyncFileUpload control was placed inside the first view of a multiview control. The page required a querystring parameter, and if the parameter is not present, the second view of the multiviewcontrol will be shown. This check is made on the Page Load event. This causes issue on the fileupload process. It was giving error, since on the postback, it gets another view. So, I did like this.

on the event "OnClientUploadStarted", I gave a value to a hidden element, and on page load, a checking is made, to see, if the value is given for the hidden element. If the value is given, the view1 itself will be shown without checking the availability of querystring parameter.

Don't know if that is the correct method. Anyhow, it worked.

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Germans also are gone :-(

My two favorite teams are out from WorldCup 2010, Germany and Argentina. :-( Spain really deserve that victory over Germany.

I know, it is bit late. But, I just came to a contribution from Microsoft for World Cup. So, I thought, I should share with you.

Track world cup scores with excel.

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Generate sql script with data from database

How can we copy data as well the structure and schema as sql query? We need database publishing wizard for that.

Download the database publishing wizard.
It will be installed at following location : C:\Program Files\Microsoft SQL Server\90\Tools\Publishing\

run the exe and you can get the sql file with all the data, schema and structure of the database you select.

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Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same

When this error comes, put enableViewStateMac="false" in the tag either in the web.config or in the page where you get this error.

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