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retreive data from access - try and catch?

Posted on 2006-11-07
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Last Modified: 2010-04-16
I am building pages similiar to the concept behind this page listed here. http://support.microsoft.com/default.aspx?scid=kb;EN-US;q308100&GSSNB=1
I was wondering if try and catch statements should be used in the pages, I always though it is standard practice to include this. Why isnt it used in this example?
What is the strandard protocol and process for this?

Or does it not merrit adding this since  its just a query of data?

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Question by:chicabow
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6 Comments
 
LVL 52

Expert Comment

by:Carl Tawn
ID: 17890128
Because they're being lazy :o)

You'll find a lot of samples don't bother putting the try...catch in there so that you concentrate on the specific concept they are trying to demonstrate.
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Author Comment

by:chicabow
ID: 17959953
Looking for some more concrete answer if possible anyone?
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Accepted Solution

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Carl Tawn earned 200 total points
ID: 17961119
What more do you need to know ?

Ordinarily you would add a try...catch around any database access code due to its nature and the myriad of things that can go wrong:

    SqlConnection cn = new SqlConnection("Connection string");

    try
    {
          cn.Open();
             
          // Other database access code
    }
    catch (SqlException ex)
    {
         // Report and/or log the exception
    }
    finally
    {
         if (cn.ConnectionState != ConnectionState.Closed)
             cn.Close();
    }


As I mentioned earlier, most of the Microsoft samples don't include try...catch code simply for brevity and just stick to demonstrating the specific point in question.
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Expert Comment

by:Carl Tawn
ID: 17961129
Slight correction:

         if (cn.State != ConnectionState.Closed)
             cn.Close();
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Author Comment

by:chicabow
ID: 18127723
Thanks for the reminder, these are helpful for people who foget to close them out.

Thanks Carl_Tawn
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