ImageGear's ASP.NET includes server-side logging to help you identify problems. To turn on this logging, you need to configure web.config. The easiest way to do that is to do the following:

1. Display an aspx page in Visual Studio's Design View.
2. Select an ImageGear PageView, ThumbnailList or ThumbnailView control.
3. Click the arrow in the top right corner to display the action list.
4. Select Configure ImageGear Web Settings.
5. Press the Error Logging button and choose an Error Severity level.  

   

You can adjust the amount of information that ImageGear places into the log file by selecting "Off", "Critical", "Error", "Warning", "Information", or "Verbose". These values are documented in MSDN for the System.Diagnostics.TraceLevel enumeration. The amount of information logged typically increases going from "Critical" towards "Verbose".