RSS Viewer Web Part Making Excessive Requests

I was investigating a scenario in which someone was seeing thousands of hits to the destination location of an RSS Viewer Web Part. They had the Feed Refresh Interval set to 120 minutes, and increasing the value did not seem to reduce the number of requests hitting the RSS Feed page. We were able to…

4

Reporting Server shows me a SharePoint link I can’t access

When you setup SQL Server Reporting Services [SSRS] in SharePoint Integrated mode, browsing http://servername/ReportServer will show you a directory listing view of SharePoint Site Collections that is security trimmed to you. However, there are some downsides to this view.  Users can probe through the directory structure of your site that they have read access to,…

2

Testing SSL URLs when using SSL Termination

Here’s the situation, SSL is setup to terminate at the load balancer.  Sticky sessions are setup as well, so once you hit a particular WFE, your future requests are routed to the same box.  The problem is that there is not an easy way to validate that the sites are responding from a client machine,…

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Unexpected Error has Occurred

A customer was browsing their SharePoint site and randomly seeing a white page with “An Unexpected Error Has Occurred” in black, unformatted text being returned [your text may vary].  If you run across this, it indicates that the Error.aspx page threw an exception while processing.  The Error.aspx page hooks the Page_Error event, so if an error…

2

Exception on custom ASP.Net page hosting SharePoint FormField controls

Working with one of my customers and they were wanting to setup an email notification on a custom site that was originally based on a blog site.  The notification needed to be sent whenever someone created/modified a post or a comment associated with the post, and the alert needed to be based on the Categories associated…

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Mystery of the SharePoint "White Screens"

Randomly users start receiving “white screen” responses when browsing a SharePoint site.  They essentially browse a URL and the response completes (IE shows Done in the status bar), but the response is an empty HTML page.  We found that this would only happen to a single server at a time and the symptom started after…

5

Referencing .js files for the AJAX Control Toolkit

I was recently working with someone that was leveraging the AJAX Extension and the Control Toolkit and they were running into an issue where a customer’s environment was causing issues making requests to ScriptResource.axd.  Since they couldn’t change the environment, they needed to reference the .js files directly.  Here’s a rundown of the steps in…

1

Fix: Random FileNotFoundException in ASP.Net 2.0 application

Issue  –  Random FileNotFoundException when browsing ASP.Net 2.0 application.  An event similar to the following will be logged in the event viewer.  The file name in the exception is typically different every time: Exception message: Could not load file or assembly ‘App_Web_-a8debde, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null’ or one of its dependencies. The system cannot find the…

4

Getting real-time updates from remote process using the AJAX Extension

This sample was a result of an idea from Kent Post at Akamai.  He was wanting to be able to launch a process on a remote server and get real-time updates in the browser.  In this case, we focused on running WinPE scripts to build ISO’s on the server.  The WinPE scripts can take a long…

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Viewstate error in mobile ASP.NET app

This is my third mobile post this week!  This one was tricky to track down so hopefully this will save someone some time.  The symptom you see is that users get the following exception.  If you’re using ASP.NET 2.0, we would log this to the Event Viewer by default thanks to Web Events: Exception of…

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