why doesn't this catch block get reached?

I am facing the problem: Try Catch block is not work that try block failed but catch block is not excuted.

In my case, I tried to excuted the sql like below:

begin try

update [table] set [column] = abc

end try

begin catch
 select 'catch error'
end catch

The [column] is numeric format, but data set to it is not valid number.

When excute this sql, the following error prompt out:

Invalid column name 'abc'.

And the catch block has not been excuted.

I want to know what happen in this case.

Moreover, I found an article talks about the similar case too:

http://sqlblog.com/blogs/alexander_kuznetsov/archive/2009/05/13/your-try-block-may-fail-and-your-catch-block-may-be-bypassed.aspx

Is there any solution so that I can catch the error without stopping the batch?

Thanks a lot.

Hi, I'm working on a project and have a code similar to the code posted below and I would like to understand why the CATCH block is never executed. If the try catch is removed the dm_fts_parser will send an error complaining search string syntax, however inside a try-catch block the code will silently return an empty recordset, no error is triggered and catch block is never executed.

USE master

DECLARE 
      @StopWordListID int 
      , @SearchString varchar(1000) 
      , @WordBreakerLcid int 
      , @AccentSensitivity bit

SELECT 
      @SearchString = '"Introduction" OR "Repair and Service'
      , @WordBreakerLcid = 1033 -- English word breaker 
      , @AccentSensitivity = 0 -- Default is not accent sensitive

SELECT 
      @StopWordListID = ft.stoplist_id 
FROM    AdventureWorks2008.sys.tables t 
      INNER JOIN AdventureWorks2008.sys.fulltext_indexes ft ON ( t.object_id = ft.object_id ) 
WHERE   ( t.name = 'Document' )

BEGIN TRY
    SELECT 
         dfp.keyword 
        , LEFT ( dfp.special_term , 200 ) 
    FROM  AdventureWorks2008.sys.dm_fts_parser ( @SearchString , @WordBreakerLcid , @StopWordListID , @AccentSensitivity ) dfp
    PRINT 'Ok'
END TRY
BEGIN CATCH
    PRINT 'Error'
END CATCH

GO

On my development box, launching the XBAP in either Debug or Release with Visual Studio 2010... it throws and catches errors just fine.  So I published the app to be hosted on our Win2008 R2 server...  Now here is what is wierd.  On my machine, hitting the published app still throws/catches errors just fine.  But on other users workstations, it just locks up IE for them, no error, no eventvwr message, nothing.

Any ideas?

Thanks a lot!!!

*EDIT*

In App.xaml.cs I am catching all unhandled exceptions this way:

  public partial class App : Application
  {
    protected override void OnStartup(StartupEventArgs e)
    {
      Application.Current.DispatcherUnhandledException += AppDispatcherUnhandledException;
      base.OnStartup(e);
    }
    protected void AppDispatcherUnhandledException(object sender, DispatcherUnhandledExceptionEventArgs e)
    {
      HandleException(e.Exception);
      e.Handled = true;
    }
    protected static void HandleException(Exception ex)
    {
      ErrorWindow errorWindow = new ErrorWindow("Error connecting to servers, please try reloading the page!", ex, false);
      ((Panel)WPFUtilities.GetApplicationLayoutRoot()).Children.Add(errorWindow);
    }
  }

I need some help regarding one issue I am facing. I created a httpmodule for hadling the unhandled errors and I need to log those errors using log 4 net in database.

Everting working fine but I am not getting any error information once the error was hadled and I need that info too. I want to make it as a centralize module which can trap all errors and log those errors.

How call application_error event of httpmodule from catch block...so that I can log that info there and I no need log in every catch block..

Thanks...

For a Workflow Service that has ReceiveRequest/SendResponse Activities, you can right click on the ReceiveRequest Activity a do a Create SendReply to add multiple SendResponse Activities. 

The problem is that I want to have a Try/Catch block in the Workflow Service.  This way when a fault occurs, I want to log the exception in my database and then use a Send or a SendResponse Activity to send the fault information back to the caller of the workflow service.

Bottom line is that VS2010 does not allow me to add an additional SendReply Activity inside the catch block.

Do you know how to do this?

Thanks,

Leo Cono, http://www.YouLoveMe.com - Free Dating

Take a look at following simple code..
(This program is not meant to do some useful things. It's just for a demonstration purpose.)

class Program {
    private static void Main(string[] args) {
        // start new thread.
        Thread thread = new Thread(new ThreadStart(ThreadFunc));
        thread.IsBackground = false;
        thread.Start();

        // interrupt the thread.
        thread.Interrupt();
    }

    private static void ThreadFunc() {
        try {
            try {
                // assume something goes wrong...
                throw new Exception("TEST");
            }
            catch (Exception) {
         &nb

Do you need and "empty" script tag in the head to run scripts that are in the body?  Also, can you run JQuery scripts if they're in the <head> tag?  The first sample only works if the JQuery script is in the form (and body) tag, not in the head - even if I add $(document).ready(function() { });

This works

<head runat="server">
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" />
    <script type="text/javascript">
    </script>
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>	
        <a href="">Here is a link</a>
    </div>
    <script type="text/javascript">
        $('a').click(function () {
            alert("you clicked me!");
        });
    </script>
    </form>
</body>
</html>

This doesn't work.  Notice I removed the second <script> tag from the head

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="serve

hi,

would any body please help me to catch the exception if the column doesnot exist as my table columns are not static.

sometimes its throwing me indexoutofrange exception as the column doesnot exist

thanks for the help guys

Hi Folks,

i am trying to use tyhe exception handling block of Enterprise library 4.1.

I just createda polisy and used IndexOutOfRangeException and added a replace handler and a logging handler to it.

I am using the NotifyRethrow PostHandlingAction to the exception.

During runtime I am getting an exception on the HandleException event, The exception is added below:

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:

Line 42:             catch (Exception ex)
Line 43:             {
Line 44:                 bool reThrow = ExceptionPolicy.HandleException(ex, "ReplacePolicy");
Line 45:         
 Using the ConsoleTraceListener with the Enterprise Library 3.1 Logging Block 
  
I'm new to using the Logging application block.  I think I have a pretty good handle on how things work.  However, I'm running into a problem.  I'm using the RollingFlatFileListener and I have formatted the logging template to be more like the logging we are replacing.  However, in our console apps when the ConsoleTraceListener is added it still logs it out in the default text template format.  Is there any way to get around this?  Currently it looks like I will have to create a new TraceListener called FormattedConsoleListener that allows a text formatter to be associated with it.  Is this the only way?

 set messageTemplateResourceName from resource file in Validation appication block. 
  
Hi,

  I am using Validation application block in my project and want to set validation message from resource file, but not able to do that. I tried giving the path of resource file in messageTemplateResourceType and name of resource in messageTemplateResourceName. But it did not help as I only receive the message if I have set something in messageTemplate even after setting the resource file.
Here is my code:
<validator lowerBound="1" lowerBoundType="Inclusive" upperBound="250"
              upperBoundType="Inclusive" negated="false" messageTemplate=""
              messageTemplateResourceName="PerilTypeAndDetailsSection.VMEnterWhere"
              messageTemplateResourceType="Asurion.jCare.Common.Resources.UIResources.PerilTypeAndDetailsSection, Asurion.jCare.Common.Resources, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"
              tag="" type="Microsoft.Practices.EnterpriseLibrary.Validation.Validators.StringLengthValidator, Microsoft.Practices.Enterpris
 Microsoft Application Block for Data Access in .NET 
  
Hi all,
I was rummaging the internet learning aspx and came across the concept of: Microsoft Application Block for Data Access in .NET
It seems great of course. The articles are all early 2003-5 such as
http://www.codeproject.com/KB/database/MS_Application_Blocks.aspx
So the question is - is this tech still relevant and should I be using it?
Thanks,
Mat