I have a case where I need to resume execution on the next line after an exception. Is there no way to do this using the structured error handling? I realize that I can go back to the "On Error .. Goto", but I can't believe there's not a way to do this with structured error handling...
View 8 RepliesI'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?
I 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.
The 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 Repliesi 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 RepliesI have this scenario: in a Sub I have a Try...Catch statement.Within that Try..Catch I call another sub.In that 2nd sub is also a Try...Catch.(see below for example).Now if an exception occurs in the 2nd sub's Try...Catch, which Catch gets excecuted? The 2nd one, the 1st one or both?
Private Sub sub1()
Try
..do stuff[code].....
If I throw an exception from within a catch, does the finally (from the catch) still execute? i.e.
Try
..some code with an exception in it...
catch ex as Exception
throw new SpecialException("blah blah" & ex.Message, ex)
[code]....
I need to catch log4net exceptions (its own exceptions not app exceptions logged by it). I wish there's a way of doing it this way: [code] I have this code implemented and there's no errors in compilation but i force log4net to have an error (pointing to a non existing database in the config file) and nothing is threw.I've tried the listener aproach: [code] and it's writing the errors to log4net.txt, the forced ones i mean.This last aproach has a couple of drawbacks: it won't append every error to the file, if the error is the same it doesn't write it, i can't get the listener to write every error to that file, only one (I don't know how to fully configure the trace listener, it might be that). Thus it won't append the date and hour to every line wich is a necesity for me. Finally i can't give structure to it (xml). Even if the listener work i need to use the try/catch aproach, since i'm using ExceptionHandling from Enterprise library to log the errors in my app.
View 1 RepliesI 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]....
I'm using Visual Studio 2005 (with Visual Basic) to create my own personal web site. I want to include a page that has my resume, but I don't want the format to be affected. What would be the best way to do this. I thought that possibly putting it in as an image might work, but I haven't tried that yet.
After I get this done, is there a way to add a button so a user can download my resume?
Can anyone tell me how I could make my program (running in background) do something when when Windows becomes active after being idle?
View 4 RepliesFor Each item In lbFiles.Items
Dim p As New ProcessStartInfo
p.FileName = "java"[code]....
How do I prevent the program from opening 3 windows at a time if there are 3 items in the listbox..how do i tell it to not to start the process when the current process isn't finished yet...like 1 window at a time...
I'm trying to get this routine to resume the downloads.I use the same routine to download a file all the way thru non-stop..so at least the download part is working..however either the stop commands i'm using or the resume routine i thought would work is all ass backwards I'm not gonna make any conclusions or anything on this one..made myself look stupid the last time i know you all are def smarter than me when it comes to this stuff,,and dangit that just erks me to no end i tried adding a exit do in the do loop..and that of course exits ok,,but when the file is resumed is larger than its supposed to be.
[Code]...
I've been trying for about a month or so but been busy recently so couldn't address it then. Here is the code.
Public Class Form1
Dim CurrentTime As DateTime
Private Sub ButtonStart_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonStart.Click
ButtonStart.Enabled = False
[code]...
I know that even when the timer is disabled, it still keeps on accumulating so I need a way that when the timer is paused, the timer doesn't keep on accumulating and when the timer is resumed, the timer continues from where it was when it was paused.
Is it possible in visual basic to suspend and resume processes. As in entirely pause a process (threads)?I mean an external thread. I'm using Visual Basic 2010 Express btw.
View 1 RepliesIs it possible to resume a download with DownloadFileAsync?
If not, then how can I asynchronously download files and resume them?
I have converted vb6 code to vb.net but in vb6 I used errorHandler in VB.NET we used "Tyr and catch" block
but In catch block resume next gives an error bcoz it is not valid for vb.net
[Code]...
I'm working on a project in VB.net which takes large text files containing T-SQL and executes them against a local SQL database, but I've hit a problem in regards to error handling. I'm using the following technologies :
[Code]...
ausing then resuming a webclient download in process?
View 1 RepliesI'm getting 'Catch' cannot catch type 'Object' because it is not 'System.Exception' or a class that inherits from 'System.Exception'. and 'Expression detected' Code underlined in blue: Catch obj1 As Object When (?)
Private Sub OpenJAMem()
Dim num3 As Integer
Try
[code]....
I have a a main thread and another background thread that does some work (see below).I want to do something within my worker thread and then wait until some other event happens in the main thread before continuing. How do I do this? I thought I could use ManualResetEvent but I can't get it to work properly. I'm a bit confused about the Set, Reset, WaitOne methods and where exactly I should call them from.When the worker thread is suspended it shouldn't affect the main thread.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System. EventArgs) Handles MyBase.Load
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code]....
I need something that will log the time the computer came out of standby, or the user logs in the first time from a reboot.
Basically, I want to time computer usage but in simple terms where computer is being used after waking or after rebooting.
So, All I need is a detection scheme. Does windows provide that? I am probably targeting .NET but can do Win32 API. Or do I have to do anything like that all?
I am thinking if I make a service, windows will handle the launching of the service and that way I can detect usage. But is that the most efficient way?
I am using XP Pro and Visual Studio 2005
I have a media player component to on a form and would like to resume play after pausing can someone help me with this?
hereis my
Public Class Form1
Private Sub PlayPause_btn_Click(sender As System.Object, e As System.EventArgs) Handles PlayPause_btn.Click
If wmp.playState = WMPLib.WMPPlayState.wmppsUndefined Or wmp.playState = WMPLib.WMPPlayState.wmppsStopped Or then
[code]....
On searching an access denied directory
Private Sub SearchDirectory()
If _SelectedDirectory = "" Then
MessageBox.Show("No directory has been selected", ApplicationName)
[code].....
I create downloader in vb.net. I need to add resume/pause buttons to it. Whats the program for it?
View 2 RepliesI want to make a download Manager with resume capability (dont refer me to codeproject examples which use httpwebrequest and webresponse classes) i want to make the use of system.net.webclient class. I know it can provide me with events and stuff but is it possible to resume our downlaods with this class ?
View 6 RepliesI have a stopwatch that begins counting from "00:00:00" upon clicking Button2 (in UserInterfacefrm). When the user
View 6 RepliesIve got a container with a bunch of child textboxes stacked using dock top. My code updates the textboxes and they vertically expand/contract etc. I'm thinking that my code might run faster if I turn off the layout refreshing until all the updates to the textboxes are done.
I'm getting confused with what I'm reading about suspend/resume layout - do I need to suspend for ALL the child controls, then go through them all at the end and Resume individually?
It seems that there is a glitch in Vb, While having some tasks ( Thread ) queued using Tasks if you try to use Invoke, the thread do not resume when the delegate returns.If BeginInvoke is used, it works but the problem is that it become impossible to execute a delegate synchronously.This does force the use of the AutoResetEvent to control the thread.The problem comes when the thread execute some code in a other classes, using a single AutoResetEvent within many classes just give a very dirty code.
View 1 RepliesI'm not talking about On Error Resume Next, that simply ignores the error. What I want to do is fix it, then continue with executing the procedure-but I can't find a way to do that, other than enclosing every single line of code in its own Try/Catch block. Nope, don't want to do that-isn't there another way?
View 32 Replies