VB.NET Compact _How to check/handle an empty data reader?

Posted on 2006-11-30
Last Modified: 2011-04-14
In a VB.NET compact application I am using a data reader to retrieve data from a SQL Server Mobile db on the device.
If I use
and there is no data returned I get an error.
If I use
If MyReader.Read
     While MyReader.Read
and data is returned, the first row will be missing

The .NET Compact Framework does not support MyReader.HasRows.
What is the appropriate code to use for the data reader. Am I just trapping the error like

While MyReader.Read
End While
Catch ex as exception
'Code to handle the error caused by the empty datareader
End try
Question by:happyman14
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 3
LVL 10

Expert Comment

ID: 18046259
Looks like you'll have to settle with the error block, is the causing any issues ?

Author Comment

ID: 18046272
I have not tried simply trapping the error. I thought there might be a better solution.

Author Comment

ID: 18046293
I did not want to use the error handling like a branching operation.
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!

LVL 10

Accepted Solution

Kinger247 earned 500 total points
ID: 18046336
I just tried it an get the same.
I don't see anything wrong in just trapping and moving on as a solution though.

Author Comment

ID: 18046462
I Thank you for your speedy reply. I will try it.  I will leave the question open for a little while to see if there is another option, but I am thinking I will prpbably just trap the error.
LVL 10

Expert Comment

ID: 18046632
Yes , there might be someone with another solution yet ;)

Author Comment

ID: 18046700
Thanks again

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

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

The ECB site provides FX rates for major currencies since its inception in 1999 in the form of an XML feed. The files have the following format (reducted for brevity) (CODE) There are three files available HERE (…
It was really hard time for me to get the understanding of Delegates in C#. I went through many websites and articles but I found them very clumsy. After going through those sites, I noted down the points in a easy way so here I am sharing that unde…
This video Micro Tutorial shows how to password-protect PDF files with free software. Many software products can do this, such as Adobe Acrobat (but not Adobe Reader), Nuance PaperPort, and Nuance Power PDF, but they are not free products. This vide…
NetCrunch network monitor is a highly extensive platform for network monitoring and alert generation. In this video you'll see a live demo of NetCrunch with most notable features explained in a walk-through manner. You'll also get to know the philos…

705 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