How To Handle The Exception

Jul 15, 2010

how to handle the Exception

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Handle Exception Into Alert Box?

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How can I coerce an exception message that has bubbled from my business layer into an alert box in javascript?BTW, I'm using ASP.NET MVC 1.0.

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Best Way To Handle OutOfMemory Exception?

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I have a 2.0 application connecting to a SQL database. Sometimes while browsing through the application, we stumble across the OutOfMemory Exception. I am currently using VS 2005. What is the best way to tackle this exception. Maybe something like a memory profiler...or something like that.

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MVC :: How To Handle Exception In View

Feb 5, 2010

I've written a custom FilterAttribute that implements IExceptionFilter. But this only catches exceptions in the controller actions. What is the best way to handle exceptions in views and html helper methods on a Windows 2008 64-bit Server running IIS 7

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C# - How To Handle This ThreadAbort Exception

Jul 12, 2010

i got this exception when i done the code given below..

"Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack."


if (retVal == 0)
catch(Exception error)

from searching in net i found it to be a bug and if its success then we should end response... ie " Response.Redirect("Success.aspx", false); ".it works fine.. is this a good method or there is any other efficient method to handle this exception

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Web Forms :: How Can The Caller Handle The Exception

Mar 21, 2011

I have a textbox that invokes a function on text changed. When the function encounters exception, I want to throw the exception back to the caller. But the problem is the caller is from .aspx file, not .cs file. How can the caller handle the exception?



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C# - How To Handle Session Expires Exception

Nov 16, 2010

I am using Session variable throughout in my application and my timeout is 1 hour. Here I need to catch the exception for session expires in any global way across my application.

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C# - Best Practice To Handle Exception In The Async Call?

Nov 11, 2010

For example, I am using wenclient.DownloadfileAsync to download a file asynchronously.

In the DownloadFileCompleted event handler, I can check if I have any exception or not by using AsyncCompletedEventArgs.Error property.

If I re-throw this exception, however my executable is stopping running immediately.

I am wondering how to handle this kind of exeception? How to pass this exception back to the
calling thread?

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AJAX :: How To Handle Async Exception Thrown In Module

May 11, 2010

i'm using 2.0 form with ajax. i have an ihhtpmodule which can thrown an exception at Application_EndRequest step. my problem is that if this happen in an async postback (i mean a postback of an update panel) i can't manage the exception (with manage i mean set a custom error message server-side) becouse it's too late for the error handler of the ScriptManager.

(the alert will print a message as:

Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.

Details: Error parsing near 'MyButt" />


at the moment my idea is to clear the response in the module and find a way to use the scriptmanager to send the correctly response of an error/exception. it's this possible? or samebody has another option of how to manage this case? note:i can't edit the aspx to manage this client client side with custom javascript

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C# - How To Handle Exception Created By An Unmanaged Code Block

Dec 7, 2010

In my code i am running an exe file through a process call. How to handle exception generated by the exe file.

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Web Forms :: How To Handle Format Exception When Nothing Is Entered In Textbox

Dec 28, 2011

I am converting the entered values in textbox into decimal values to saev in sql table. In case user does not enter any value i get a Format exception. How do i handle this..

My code is as below

DMLObj.Add("ItemID", Convert.ToInt32(drpitemname.SelectedValue).ToString());
DMLObj.Add("SupplierName", Convert.ToInt32(drpvendor.SelectedValue).ToString());
DMLObj.Add("Quantity", Convert.ToDecimal(txtqty.Text).ToString());//qty.ToString());
DMLObj.Add("Unit", Convert.ToInt32(drpunit.SelectedValue).ToString());

[Code] ....

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The Handle Is Invalid. (Exception From HRESULT: 0x80070006 (E_HANDLE)) / What Is Solution

Dec 6, 2010

My web application some times gives error 'The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE))' on server. I never comes on production server. Then I just upload the bin folder again on server and it starts running fine. I don't know what is the actual reason behind this.

Some experts suggested Min pool size =1, I applied that but no luck.

I have attached error image.

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DataSource Controls :: How To Handle Error Unhandled Exception Occurred During The Execution

May 31, 2010

string connectionstring = WebConfigurationManager.ConnectionStrings["AdventureWorks"].ConnectionString;
SqlConnection con = new SqlConnection(connectionstring);
DataSet ds = new DataSet();
DataRelation dr = new DataRelation("show", ds.Tables["HumanResources.Employee"].Columns["EmployeeID"], ds.Tables["HumanResources.EmployeeAddress"].Columns["EmployeeID"],false);
foreach (DataRow row1 in ds.Tables["HumanResources.Employee"].Rows)
Response.Write("customertitle:" + row1["Title"].ToString());
foreach (DataRow row2 in row1.GetChildRows(dr))
Response.Write("customer add" + row2["ModifiedDate"].ToString());

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 31: Line 32: DataSet ds = new DataSet();Line 33: DataRelation dr = new DataRelation("show", ds.Tables["HumanResources.Employee"].Columns["EmployeeID"], ds.Tables["HumanResources.EmployeeAddress"].Columns["EmployeeID"],false);Line 34: //ds.Tables["HumanResources.Employee"].ParentRelations.Add(dr);Line 35: ds.Relations.Add(dr);
Source File: d:databaseDataset showing selected
field of 2 tables.aspx.cs Line: 33
Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.] dataset__with_two_tables.Page_Load(Object sender, EventArgs e) in d:databaseDataset showing selected field of 2 tables.aspx.cs:33 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +33 System.Web.UI.Control.OnLoad(EventArgs e) +99 System.Web.UI.Control.LoadRecursive() +47 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1436

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AJAX :: Handle And Display Exception Error Message During Update Panel Partial PostBack

May 7, 2015

I want handle exceptions in update panel control with c#.

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DataSource Controls :: Getting Exception / An Exception Occurred While Executing A Transact-SQL Statement Or Batch

Jan 1, 2010

i need to restore Database.mdf; I create a blank new database exactly the same name as the .mdf file. However, I could not restore the database.

The error message prompted was:

TITLE: Microsoft SQL Server Management Studio Express

An exception occurred while executing a Transact-SQL statement or batch.



Cannot open backup device 'C:inetpubwwwrootTCPSystemApp_DataDatabase.mdf'. Operating system error 32(error not found).

RESTORE HEADERONLY is terminating abnormally. (Microsoft SQL Server, Error: 3201)

click: [URL]



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Architecture :: How To Log Dal Exception And Showing Alert To User / Exception Occurs

Aug 3, 2010

I am working on a 3-tier application. Currently I'm stuck up in a situation where I need to handle a specific type of exception (User Defined) in DAL and Show alert to the user if that exception occurs in DAL.

I tried following things:

1) I raised that exception from the DAL and catch it in BLL and throw a new BLL exception to for that DAL exception and finally catch it in the UI layer to show the alert to the user. I've successfully implement this in my project. But there are some issues in this approach. First of all I feel this is not right way to do this as it may lead to performance related issues. Secondly, the application contains more than 500 pages and classes. so I need to attach additional catch block in every method to catch the BLL exception. which is the last option i'd like to take.

2) in second approach I logged the the DAL exception into a text file. but problem in this approach is that how could the UI layer know that exception has occurred and show the alert to the user. Is there any event in where i could handle all this activities?

my question is what is the best approach to handle this type of situation? Will Exception handling block help me in this?

I've tried reading many articles on this but i couldn't get an answer for my question? I might not be using right keywords for my search.

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C# - How Do I Get Specific Details About An Exception From A General Exception Class Object

Feb 4, 2010

In ASP.NET,How can i know the Specific details about an exception (like What kind of Exception it is (FileNotFound /Arithmentc etc..) )from a General Exception class object.

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C# - Exception Handling - Implement Custom Exception Classes?

Jul 2, 2010

i have this application structure:

1. Presentation Layer which calls

2. Business Logic Layer which in turn calls

3. Data Access Layer to do the dealing with the database.

Now i have a Contacts page from where i can add a new contact to the database.So to add a New Contact i fill in all the required details and then call a Add Method (residing in the BLL) from the page, which in turn call a Add Method residing in the DAL.this method in the DAL returns the Current Identity of the record which is then return back to the BLL method and finally delivered on the page.this is fine. but what if a get an exception how do i handle it properly because the method in DAL has a return type of int and i dont want to throw another error!! coz other wise i will have to write try catch in almost all the methods.

//something like this
public int AddMethod(ContactClass contactObj)
int result = 0;[code]...

rather i want to show the user a user-friendly message which they can easily understand and in the mean while i will send a mail to myself documenting the Error that just can i implement my custom exception classes.

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Ways To Identify A Particular Exception From Exception Class?

May 18, 2010

Is there any way to uniquely identify a particular exception from the general exception class.

i.e any property or method that retrieves a unique identifier that to identify a particular exception.

I have kept some error values and corresponding error texts in an xml file. I want to read that xml file and have to taken the error ids and fix the corresponding texts to a label. in the case of a system exception we have to identify a particular exception.

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WCF / ASMX :: Difference Between Exception And Fault Exception?

Jul 18, 2010

Difference between Exception and Fault Exception..?

Can i use Fault Exception when i get the Exception.

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C# - Exception Is Like The Padding Is Invalid And Cannot Be Removed Exception?

Jul 12, 2010

We're getting this InternalSubStringWithChecks exception with our application's healthMonitoring. This exception is like the Padding is invalid and cannot be removed exception where it's being recorded and we're getting a notification email but the end user is unaware that an actual error has happened. Though we don't want our event log filled up with this rubbish! The stack trace is:

Parameter name: length
at System.String.InternalSubStringWithChecks(Int32 startIndex, Int32 length, Boolean fAlwaysCopy)
at System.Web.Handlers.AssemblyResourceLoader.System.Web.IHttpHandler.ProcessRequest

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Console Application Calling Datalayer Throws An Exception "The Type Initializer For Threw An Exception."

Aug 17, 2010

I have simple 3 tier web application and have mostly CRUDE functionalities. Recently I required to add new console application to the existing solution in which I call data layer methods for retrieving data from DB but I get an exception "The type initializer for threw an exception."When I debugged I found that the exception is thrown at datalayer on first line of class where I get connectionstring from

web.config, the code is public static readonly string CONNECT_STRING =


Now if I hardcode the connection string value like public static readonly string CONNECT_STRING = "Data Source=XYZ;uid=sa;password=XXX;initial catalog=ABC;"

it works fine.I don't understand what is the issue here as web application works fine with this datalayer.

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How To Handle Cookies

Apr 20, 2010

How to handle cookies in

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How To Handle Time Input In C#

Jun 25, 2010

How am I going to handle time input because I am having a problem especially if the user inputs greater than 24:00:00.

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Best Way To Handle Thumbnail Creation?

Feb 11, 2010

This is a thread looking for advice/comments.I have datalist that has an image in each row. Right now i am just setting the height to a certain height like 75px and this works just fine. Our images are pretty web friendly. But if a user was to have a jpeg that is like 2mb and i change the height I am guessing it still is loading the full 2mb even though the image has "shrunk"?If so what is best way to handle thumbnail creation. I dont want the end user to have to create thumbnail so i was thinking of doing it dynamically if the way I am doing it now is gonna slow down my page.

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