If There Is A Return If Catch Block Will Finally Runs

Feb 9, 2010

is final run if htere is a return in catch blobk ?

example

try{

}catch(){[code]....

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Apr 2, 2010

I wrote a stored procedure call with the format:

bool isValid=true;

using (OracleConnection myConn = new OracleConnection(connectionString))
{
OracleCommand myCmd = new OracleCommand("sproc", myConn);
myCmd.CommandType = CommandType.StoredProcedure;
myCmd.Parameters.AddWithValue("p1", a1);[code].....

Second format just doesn't feel right but I am not that experienced. I am curious if there is any downfall to that other than exception not being type specific.

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Apr 4, 2011

I am creating asp.net web apps in .net 3.5 and I wanted to know when to use and when not to use Try Catch Finally blocks? In particular, a majority of my try catch's are wrapped around executing stored procs and populating textfields or gridviews? Would you use Try Catch EVERYTIME when you execute a stored proc and populated a data display control?

My code block usually looks like:

protected void AddNewRecord()
{
try
{[code].....

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MVC Exception Not Being Caught In Try Catch Block?

Jan 21, 2010

I have tried this on two different controller methods now, and both times, even if the linq2sql doesn't allow the data to be saved, the code never jumps into the catch block.

I've watched the noun object in the middle of the trace, and the isvalid property is false, but the modelstate isvalid is true. Either way, the code never jumps into the catch block.I'm pulling my hair out about this. I feel like it will be something really silly.

The code all works similar to nerd dinner.

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I'd rather not have to add code in this manner though, as it seems like an unnecessary duplication.

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I have to call the function, when exception occured. Is it possible to call the function in Catch block (Try-Catch)? I have tried it but the function did not get invoked. What i have to do for it? Shall we unable to call the functions in Catch block? I have shown my code below.

Try

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I knew, We can invoke this function in Finally block but i do not need as per my requirements.

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Mar 31, 2010

When to write try catch block?

Should I write it for each method or only in event handlers or ????

What happens when an exception occurrs? What is the stack for exception?

If I use it at entry point (event handlers) then how do I get actually at which line error occurred?

Suppose an exception was thrown from Data Access Layer How do I get it in presentation layer that exactly in which class method at which line why that error occurred?

Is it true that excessive use of try catch makes application slow?

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Jul 22, 2010

i have the following code which show error from a string when there is a error

is there any way that i can make this in catch block?

main()
{
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if (a==1)[code].....

Like below:i have the following code which show error from a string when there is a error

is there any way that i can make this in catch block?

main()
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C# - Performance Cost Of A Try/catch Block?

Aug 13, 2010

Possible Duplicate:
Performance Cost Of ‘try’

I am being told that adding a try catch block adds major performance cost in the order of 1000 times slower than without, in the example of a for loop of a million. Is this true?

Isn't it best to use try catch block as much as possible?

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Can somebody show me a better approach of looping through a Try -Catch statement. I have something like this:

Try
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Web Forms :: Try / Catch Block Won't Write Javascript?

Jun 10, 2010

Since everyone yells at me that MessageBox doesn't work when the project is uploaded to the server, I need to migrate to javascript alert box. As I was changing my MessageBoxes, I tested and found that they weren't being produced. I'm not sure if it matters, but they are in a try/catch block, which is shown here:[Code]....

This all worked before when I had MessageBox - it showed, then the page redirected when I clicked Ok.

I either don't understand how try/catch works, the javascript isn't adding, or Response.Redirect is executed before I can see the alert box and click Ok on it.

(just as a note, everything works fine, but the alert box doesn't show)........if I add the (javascript) code before the try block, the alert box comes up, so it's not something wrong with the writing of the javascript or executing it at least (I think).

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Calling JavaScript Function From Code Beind (c#) Catch Block

Oct 22, 2010

I am trying to call a JavaScript function from my ascx control code behind in the catch blockI have tried the below two ways but they don't seem to work.

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DataSource Controls :: Specific Error Messages In Try Catch Block

May 23, 2010

How/Can I Set the try, catch statment to catch a specific Error. For example i am getting the following error:

Exception Details: System.Data.SqlClient.SqlException: Incorrect syntax near '='., [SqlException (0x80131904): Incorrect syntax near '='.]

Basicly The = is part of my SQL string which points to a table that currently doesent exist. I want something like catch ex as SqlException (0x80131904) or catch ex as SqlException = "0x80131904" or even catch ex as System.Data.SqlClient.SqlException = "Incorrect syntax near '='." I just want something so i can put "table doesnt exist" in the error message without having to use:

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Oct 7, 2010

while doing debugging i found a blue dotted corner around catch block, while hovering it is showing system.exception...what does it mean and what to do

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Oct 7, 2010

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..

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C# - Is It Possible To Use Return Statement In Try Block

May 13, 2010

Is it possible to use return statement in try block?.How,What is the use of the statement.

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C# - JavaScript: How To Surround An Auto Generated JavaScript Block With Try/catch Statement

Jan 17, 2011

In the Script documents that asp.net automatically generates how can I surround the whole generated scripts with try/catch statement to avoid 'Microsoft JScript Compilation error'

My issue is: i got a DevExpress control (ASPxGridView) that added and set-up in run time, since i activated the grouping functionality in the grid I still get JS error says ';' expected whenever i use (click) on one of grouping/sorting abilities, I activated script Debugging for IE, in the JS code turns out that there is no missing ';' and once i click ignore for the error msg that VS generates every thing works fine, and surly end-user can't see this msg so i figured out if i try/catch the script that may help avoid this error.

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Web Forms :: Display Error Message From Catch Block In Message Box?

Nov 11, 2013

no Massagebox not working in the web

at catch I want appear windows and retuen to....

try 
{
}
catch (Exception ex) {Console.WriteLine("Error reading from", ex); }

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DataSource Controls :: Catch Don't Catch Any Error From SQL 2000 Transition Store Procedure

Feb 7, 2010

Here is the code copied from [URL] In asp.net code behind, I use try-catch try to catch any error but never catch it. In SQL database, if I rename Employees to Employeesx or change column DepartmentID to DepartmentIDx, record will not be deleted (it is right) without any error (it is wrong, suppose catch an error).

CREATE PROCEDURE DeleteDepartment
(
@DepartmentID int
)
AS
BEGIN TRANSACTION
DELETE FROM Employees
WHERE DepartmentID = @DepartmentID
IF @@ERROR <> 0
BEGIN
ROLLBACK
RAISERROR ('Error', 16, 1)
RETURN
END
DELETE FROM Departments
WHERE DepartmentID = @DepartmentID
IF @@ERROR <> 0
BEGIN
ROLLBACK
RAISERROR ('Error', 16, 1)
RETURN
END
OMMIT

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C# - Will Code In Finally Run After A Redirect

Sep 8, 2010

Take for example the following code:

try
{
Response.Redirect(someurl);
}
finally
{
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}

Will the code in the finally block run?

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Getting Unhandled Exception But Unable To Catch With Try Catch

Sep 14, 2011

I get this error in the browser:

Code:
Thread was being aborted.

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.Threading.ThreadAbortException: Thread was being aborted.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[ThreadAbortException: Thread was being aborted.]
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +486
System.Web.ApplicationStepManager.ResumeSteps(Exception error) +501
System.Web.HttpApplication.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData) +123
System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +379

Version Information: Microsoft .NET Framework Version:2.0.50727.3053; ASP.NET Version:2.0.50727.3053

I have try{}catch(Exception ex){} in the right place:

Code:
protected void Button1_Click(object sender, EventArgs e)
{
try
{
// all processing occurs inside here
}
catch(Exception ex)
{
}
}

I even created a global.asax file and on the Application_Error event, I wrote a code that would email me the error (and i'm not getting an email regarding that error when I get the error shown above). I know for a fact that the thread is going inside the "try" statement because I send emails to myself whenever it finishes certain codes inside of it. So how come I'm getting that error in my browser instead of it being handled in my "catch" statement? I have two problems here, one, why is the exception not going to my "catch" statement, and two, why am I getting that error in the first place.

Note: my web app calls a webservice.

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Web Forms :: Login Page To 9 Redirects Back To Itself Before Finally Loading?

Feb 21, 2011

I would periodically get a message stating "too many redirects". I used debug this moring and found out that my login page, even with no code in the page_load and no script does 9 redirects back to itself. I use forms authentication and assume it has something to do with that.

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Web Forms :: Menu Item Block / Master Page That Has Block Around The Text When The Page Is First Run?

Jan 29, 2011

I have menu item on my master page that has block around the text when the page is first run. I wrote in the css on the link and visited property to change the color to match the image color that it is on. When a menu item is clicked the color changes to the right color. How do I get it to the right color on when the page first opens or is there a way to get rid of the block or make it transperant?

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To Reach A Variable From A Different Code-block Expression Than The Block Where The Variable Was Declared ?

Oct 25, 2010

I have 2 separate code-block asp.Net expressions in an aspx markup, with an html content between (span element in the example below). In the first code-block, there is "i" as an increment variable for the for loop.Then the code-block is cut with an html content.And another code-block expression is opened but as I see I can reach the "i" variable which was declared in the previous code-block.

So, how asp.net handles -compiles- the pieces of code-block experrions declared in the mark up? Does it check the semi-colons and generates some anonymous methods which will end up with many calls to Response.Write in the last place?
<p>
<%for (int i = 0; i < 30; i++)
{

[code]....

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Data Controls :: Insert Update Delete In Temporary DataTable And Finally Save Data To Database Using GridView?

May 7, 2015

[URL]

How can I Edit/Update, Delete and save record to database

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MVC :: Action Runs Twice In IE8 Only?

Jun 25, 2010

We hit the problem in our asp.net mvc application where our controller action method would be hit twice in
IE8.

This issue does not occur in both FF and Safari.

We have also disabled javascript during our test and it still hits it twice. The first time it passes model properly whereas the second time the model is null.

It does it across all pages.

Has anyone hit this problem before? Bear in mind it's only in IE8 and it's not javascript related.

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