What would be the best way to catch exceptions and display a detailed message in ASP.NET? I know in regular windows development, you can use an MessageBox.Show(ex.Message) to display the error details. How is this possible in ASP.NET? Is there an example out there someone could direct me to? I have not been able to find anything yet.
View 3 RepliesI have 2 lines in a text file like this
empid Name Salary Year
1234Johnny Wright 100002009
2344Travis Frank 302002009
For ex : my errors are in empid.. 2 empid's have alphabets which has error.
I m able to display only one error at a time. either 1st or 2nd.
How to display both errors at a time.?
Working through the tutorial [URL]
I want to output the value of the 'caught' exception as all the database queries are wrapped in try catches.
How would I do this?
I have added a label to my form but not sure how to get a value in it! (Still thinking old ASP.NET)
I have a C# web forms ASP.NET 4.0 web application that uses Routing for URLs for some reason custom errors defined in the system.web section of my web.config is entirely ignored and it will fall back the IIS errors.
This gets entirely ignored
[code]....
This would be a minor inconvenience except that by the fact it falls back to IIS native instead of my application it completely circumvents Elmah logging my 404 exceptions correctly.
Using try, catch finally, and end try, what is the best way to display informaiton out of the exception.
View 4 RepliesHow can I take an exception (if occured) and save it or display it and pass the error message to another page?
View 8 Repliesi have a datagrid control which displays users created using sqlMembership..it has a row deleting event which is only accessed by administrators here is the code..
[Code]....
my problem here is to catch the securityexception and display in label
Handling the exception in asp.net.
View 1 RepliesWhen I build my program, if there's one error that prevents it from running, instead of just getting the one error I'll get around 50 additional errors in addition to the real one such as:
Error 27 Validation (XHTML 1.0 Transitional): This name contains uppercase characters, which is not allowed.
Is there any way to not show these?
I want handle exceptions in update panel control with c#.
View 1 RepliesI am new to jQuery. Can anyone please tell me how can I use jQuery validation to display the count of errors in a form.
View 4 Repliesi 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.
(Microsoft.SqlServer.Express.ConnectionInfo)
ADDITIONAL INFORMATION:
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]
BUTTONS:
OK
I am working on a 3-tier asp.net 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 asp.net 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.
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.
View 2 RepliesI am trying to handle the unhandled exceptions in my project.I tried with this following code in my web.config filebut it is not at all redirecting to an error page which i have created instead of that it is throwing an exception in my code itselef. How to print the error description over therein my custom error page.
---------------------------------------------------------------------------------------------------
<sys.web>......<customErrors mode="On" defaultRedirect="~/Error.aspx"></customErrors>...</sys.web>
---------------------------------------------------------------------------------------------------
And even i tried in Global.asax page in Application_Error() method like below
Exception ex = Server.GetLastError();Response.Redirect("~/Error.aspx?errmsg="+ex.message);Server.ClearError();
And in my Error.aspx.cs page i have placed a label and i have written code like this
protected void Page_Load(object sender, EventArgs e) {
Label1.Text=Request["errmsg"];
}
But it is not getting redirected my error page and not displaying anything on it.
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 occurred.how can i implement my custom exception classes.
I need to display an error message in the view when there's an error in rendering the partial view in that View.
How can i handle the exception while rendering partial view and display the error message in the view?
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.
Difference between Exception and Fault Exception..?
Can i use Fault Exception when i get the Exception.
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
[code]...
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 =
ConfigurationManager.ConnectionStrings["DbConnectString"].ConnectionString;
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.
Modal PopUp Extender Catch exception error and display on modal popup
[Code]....
I just want to see error insteas of asp.net showing me default error Server Error in '/' Application. What should i change in web config?
mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
<error statusCode="403" redirect="NoAccess.htm" />
<error statusCode="404" redirect="FileNotFound.htm" />
</customErrors
I am trying to publish an MVC 2 site in Visual Studio 2010 on Windows Server 2008 R2.
As I read to do, I expand References and select:
- System.Web.MVC
- System.Web.Routing
- System.Web.Abstractions and set Copy Local to True.
Then I right click the MVC Web Project and select Publish. I select Publish Method of File System. This publishes to the local file directory I specified in a compiled down version. My first question is this: The MVC specific references whose Copy Local I set to true do not show up in the published bin file like I thought they were supposed to do. Now when I copy the files over to production it does not work.
For the top level [URL] I get: 403 - Forbidden: Access is denied. You do not have permission to view this directory or page using the credentials that you supplied.
For [URL] I get: 404 - File or directory not found. The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable.
For [URL] I get: 500 - Internal server error. There is a problem with the resource you are looking for, and it cannot be displayed. Can someone point me to the right way to do this?
Last night i have ran my application which was workin 100%, but in the morning when i run it, it shows the error message in IE Status Bar Done but with some errors on Page due to this, my Menu and TreeView is not appearing well.
View 10 Replies