Asp.net - Try-catch Block Still Be Throwing An Error?
Apr 23, 2010Why would my try-catch block still be throwing an error when it's handled?[code].......
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Null - If Block Throwing An Error
Mar 22, 2011My code block is below. As it turns out, rdrCurrentRate.GetString(12) is a null value, but the code block throws an error. "Data is Null. This method or property cannot be called on Null values."My intention is to write "if rdrCurrentRate.GetString(12) is NOT NULL, then sCurrentRateType = rdrCurrentRate.GetString(12)"
What am I missing here?
If Not String.IsNullOrEmpty(rdrCurrentRate.GetString(12)) Then
sCurrentRateType = rdrCurrentRate.GetString(12)
[code].....
MDI Global Error Handling - Nothing In Try Catch Block
Nov 21, 2008I normally use the following for global error handling:
Code:
Dim currentDomain As AppDomain = AppDomain.CurrentDomain
AddHandler currentDomain.UnhandledException, AddressOf MYExceptionHandler
AddHandler Application.ThreadException, AddressOf MYThreadHandler
I normally don't have a MDI application, and When I force an error, neither of the events get fired. I don't have anything in a try catch block. How do I do this with a MDI application?
"On Error Resume Next" In Catch Block
May 26, 2009I'm converting a VB6 project to VB.net.
I'm reading a dataset, if there are any issues with data, I log those errors to a table, but I need to continue reading the dataset with next record.
I am familiar with try/catch/finally for error handling. I'm reading the dataset in the try block, log the error in the 'catch' block. Now my question is - how do I continue with the loop again, since 'On Error Resume Next' statement is not supported in catch block VB.Net?
Sql - Use A Try And Catch Block In .net?
Mar 19, 2011For the code shown below, how would I use a try/catch block to handle an error if it were to occur?
TOTKILO.Text = KILO.Text * TOUCH.Text * 0.01
TextBox10.Text = TextBox9.Text * TextBox8.Text * 0.01
K = Math.Round(Val(TOTKILO.Text) - Val(TextBox10.Text), 5)
[code]....
I used VB.Net controls and LINQ to SQL to perform all Updates and Inserts, so when an error occurs I want to show "Enter Data Correctly", how do I do that once I catch an exception?
Asp.net - Catch Block Not Catching?
Aug 8, 2011I have a simple function which tries to get a value from an Obout grid filter column, and if the value is empty, ignores it and moves on. For some reason this code ignore my catch block and always shows a System.FormatException when the input string is empty More bizarre, if I use visual studio's debugger and set a breakpoint on that line, the catch block functions normally (after I continue from that line). I have already confirmed that my Debug | Exceptions | CLR are not set to catch when thrown. I have also confirmed this same behavior in the production version.
[Code]...
Return Value From A Try Catch Block?
Mar 1, 2009how do i make sure -1 is returned if an error occored?
Public Function ExcecuteNonQry(ByVal sql As String, Optional ByVal connectionString As String = "")
Dim returnVal As Integer = -1
[Code].....
Catch Exceptions In Finally Block?
Oct 13, 2010Is there some special way to catch exceptions in finally block ?
View 2 RepliesWebException Not Caught In Try/catch Block?
Feb 3, 2011I've tried to Google this problem, but haven't found any relevant results.I am trying to handle HTTP 500 errors when logging into a web service (the web service returns 500 when login is incorrect). An WebException is thrown, but I can't seem to catch it properly. The exception is highlighted in green instead of the normal yellow (having trouble finding info on this as well)
[Code]...
Which Is Faster - A Using Block Or Try / Catch / Finally
Sep 2, 2010This is a followup question to this Should I stick with the Try/Catch/Finally construct, or go with the Using construct? Sample Code for Try/Catch/Finally:
[Code]...
Add A Block Of Xml Comment And Create A Try-catch To A Function?
Jul 7, 2011We've created a little plugin to add a block of xml comment and create a try-catch to a function. (we simply add this to each and every function we write).But with the latest devexpress update I'm having a problem with the following code.[code].........
View 1 RepliesC# - GridView SelectedIndexChange With Try Catch Block Faulty In 2.0?
Dec 14, 2009I am using ASP.NET 2.0. When i place a TRY CATCH block in my event it always go into the CATCH section, in my case it re-direct the page to Default.aspx. But if I remove the TRY CATCH block the code get's executed fine and it does what it suppose to.
CODE:
There is no error message when i place a break point by the "Catch ex As Exception" Am I reading the selectedRowIndex DataKey value incorrectly maybe?
Change The Auto-fill On Try Catch Block In .net?
May 1, 2011In visual studio when I type the word try it automatically adds the catch and and try for me.
I want to add after the catch something like Msgbox(ex.message)... I'm tired to type the same thing over and over.
Null Reference Exception In Catch Block
Oct 18, 2011I'm trying to catch an invalid entry in a textbox that I use to enter numbers using the subroutine below.
In the Catch blok I want to change the ForeColor of the textbox that contains the invalid entry.
This did function but now gives me a null reference exception on the line where I change the ForeColor.
Private Sub SaveParm()
Dim Temps(2, 2) As Double
Dim Cname As String = "Text0"
[Code]......
Try-Catch Block Not Allowing Negative Numbers?
Sep 24, 2009I have a program in which users are entering numbers into text boxes. I'm checking for proper data entry using a TRY-CATCH block. It works great and delivers an error message if the users enter anything non-numeric.
The problem is that now I need the users to enter negative values, but the TRY-CATCH is seeing the negative sign as non-numeric.
Unhandled Exception Message Happens Even In A Try/Catch Block?
Apr 25, 2011This is part of my block which handles incoming messages via TCP. Sometimes it sends scrambled messages which are unpredictable and i need a Try + Catch block for it:'
[Code]...
I can either get "Input string not in correct format" or "typecast not valid". But this is simply supposed to be routine to run into and be able to handle. but that stupid error message keeps popping up I've heard of JITDebugging, should I use that?
Closing A Form On The Load Event In A Try Catch Block?
Dec 12, 2009okay i have this code
Private Sub Form_OpenGradeBook_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[code].....
Generically Implement Exception Logging If I Have Already Got Many Try-catch Block?
Apr 20, 2012I am writing ASP.Net Web-form in VB.
I have a system which have already handled exceptions by try-catch blocks everywhere.How do I quickly and generically implement exception logging like overriding something instead of inserting logging functions in every single catch block?
Error - Catch Cannot Catch Type 'Microsoft.Office.Interop.Outlook.Exception'
Mar 25, 2011I have a program in VB.Net that receives mails from Outlook, extracts attachments and inserts the attachments into a table through a query. I would like to put the query/queries in a Try/Catch block, but cannot do so as Outlook exceptions cannot be caught, and it gives me an error, and unless I put a very specific exception, I cannot catch it. Is there a workaround?
Edit:
Try
Catch ex As Exception
End Try
Exception is underlined and when I hover on it, it says: "Catch cannot catch type 'Microsoft.Office.Interop.Outlook.Exception' because it is not in 'System.Exception' or a class that inherits from 'System.Exception'". This is affecting all my other code which I'd like to put into a Try/Catch block.
Restructure Try / Catch To Eliminate Error On Myreader.close Command In Catch Part?
Jun 19, 2012The following code causes a "Warning" that Variable is used before value assigned.How do I restructure this Try/catch to eliminate error on the myreader.close command in the Catch part? Code appears to work fine but I dont like Warnings. [code]
View 8 RepliesButton_click Event Will Not Stop Execute After Error Catch Using Try - Catch Statement
Apr 1, 2011i have problem when i click a ADD button, there is one null value in the textbox .. so the try catch statemnt is to catch that null value error but after that the catch is success but the button click never stop excute the statemnt till the end of the button event.
View 6 RepliesCatch Block In Text.vb And Display The Results In Default.aspx?
Feb 26, 2010Catch block in text.vb and display the results in default.aspx
View 5 Replies.net - Re-throwing An Exception From An Exception Catch?
Feb 14, 2011catch an exception and then throw another exception? Like so:
Try
' Do operation xxx
Catch ex As Exception
' Operation xxx failed, need to execute cleanup
[code]....
The reason for doing this is that while I catch my exception on a higher level logic (to make sure I can log it properly), I need to do some actions in the event of the exception that I can only do inside my class/function.
Error 68 'Catch' Cannot Catch Type 'Microsoft.Office.Interop.Outlook.Exception' Because It Is Not 'System.Exception'
Feb 12, 2010I am using VB.NET 2005 to create a Windows forms application. I have a procedure named SendMail that creates an instance of Outlook.Application, to send an email from my application. I found the code on this forum, I think.The procedure works fine, but I can't use error handling with it.I call the procedure from a button click event. I put the procedure call in a try/catch block, and the application won't build, with the following error.
Error 68 'Catch' cannot catch type 'Microsoft.Office.Interop.Outlook.Exception' because it is not 'System.Exception' or a class that inherits from 'System.Exception'. C:datadevdmtiQTSQTSv7_1_20100212wQTSQTSReportsCriteria
pt_frmReportViewer.vb 43 21 QTS
Here is the code:
Sub SendMail(ByVal sFile As String)
' Create an Outlook application.
Dim oApp As Outlook._Application
[code]....
Show The Line Number Of The Line Of Code That Caused An Exception Within A Try...Catch Block?
Jan 29, 2009Is there a way to show the line number of the line of code that caused an exception within a Try...Catch block?
View 5 RepliesThrown Custom Exception Is Immediately Caught In The Same Catch Block It Is Thrown From?
May 13, 2012This may be a debugger issue, but here goes:I have this piece of code:
Private Function Connect() As Boolean
Try
sessionBegun = False[code].....
My intention is to 'convert' the low level exception into something more meaningful, so I throw an exception of my own creation. I want this to bubble up to a place where I can handle it.However what is happening is my debugger breaks and tells me that an exception of type "QuickBooksConnectionException" was thrown.I know that, I just threw it, why are you catching it? From what I've read, this ought to work, and there doesn't appear to be an analogous Java throws keyword, so perhaps it is my debugger.
Asp.net - .net Throwing Error To Parent
Feb 27, 2012I have a question about how to properly deal with errors. I am working on a three tiered application. If an error is created on the data tier, I would like to pass the error to the business tier and process it there.What is the best method to accomplish this? I am using .net 2.0 and visual studio 2005.
View 1 RepliesConverted Code From C# To .NET And Now It's Throwing An Error
Mar 4, 2012Can someone please explain to me what this error means? I am new to VB programming and don't understand this. Error : Type 'var' is not defined
Here's my code
[Code]...
ODBC VB Throwing Syntax Error
Sep 7, 2010I cant see what is wrong with my SQL statement syntax [code]...
ERROR [42000] [MySQL][ODBC 5.1 Driver][mysqld-5.1.41]You have an error in your SQL syntax;check the manual that corresponds to your MySQL server version for the right syntax to use near 'Int,Agi,Money) VALUES('MyUsername','MyPassword',0,0,0,0)' at line 1
Try...Catch Block "pauses" While Debugging?
Feb 8, 2010I have a database application with error handling in a separate module.
[Code]...
But while debugging (and "Address" field is left empty), the program breaks and I get an exception at the "Throw New Exception" line even if the error should be trapped by the "Try...Catch" block.
At runtime, everything works well and the correct error is displayed.