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DotNetNuke Forums
 
  Forum  General DotNetN...  Configure It! (...  Problem with ghost like objects
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New Post 9/5/2008 3:36 AM
Resolved
User is offline som4
96 posts
10th Ranked


Problem with ghost like objects 

Hi all

I'm currently building two modules for searching our product database against googles AWS service.  You enter your search in to the search module then the results module on another page takes the keyword passed to it and generates data collected from the Amazon database.  Problem is it is very tempremental.  I keep getting "Object reference not set to an instance of an object." errors which i think is because an item i am trying to display has returned an empty or null value.  I'm not 100% sure thats the problem though and have spendt some time trying to catch all null values.  Is there a better way other than the EventViewer to get info on bugs?  I'm still fairly in the dark as to the cause of this random bug.

Si
 
New Post 9/9/2008 4:24 AM
User is offline som4
96 posts
10th Ranked


Re: Problem with ghost like objects! 

I figured it out in the end.  In order to use data from the amazon service you need to catch the nullreference exception that is thrown when a product from the service does not have a value.

    public string smallPic(int i)
    {
        try
        {
            return items[i].SmallImage.URL;
        }
        catch (NullReferenceException e)
        {
            return noImageUrl;
        }
    }
 
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