Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Datareader - checking for system,indexOutOfRangeException

Posted on 2014-02-12
1
Medium Priority
?
215 Views
Last Modified: 2014-02-26
I have a data reader that has this code

while (dr.Read())
                {
 if (Convert.ToInt16(dr[0]) > 0) {     
                    recordsReturned = 1;
                    }

Open in new window


This works fine if results are returned, but if the data reader has no results, it breaks
I tried using .HasRows, but it always has rows for some reason

Anyway, what code do i need to check for this out of range exception?
0
Comment
Question by:websss
1 Comment
 
LVL 20

Accepted Solution

by:
Daniel Van Der Werken earned 2000 total points
ID: 39853191
Check for dbNull:

while (dr.Read())
 {
 if (r[0] != DBNull.value && Convert.ToInt16(dr[0]) > 0) 
   {     
      recordsReturned = 1;
   }
}

Open in new window

0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Just a quick little trick I learned recently.  Now that I'm using jQuery with abandon in my asp.net applications, I have grown tired of the following syntax:      (CODE) I suppose it just offends my sense of decency to put inline VBScript on a…
Introduction This article shows how to use the open source plupload control to upload multiple images. The images are resized on the client side before uploading and the upload is done in chunks. Background I had to provide a way for user…
Integration Management Part 2
Screencast - Getting to Know the Pipeline
Suggested Courses

916 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question