VS 2008 Calling API's: Automatic Error Throwing?
Mar 28, 2011When calling API's or other external functions it is only possible to get thrown errors using "GetLastError". I made the following function for this:
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Class Calling Itself And Throwing Stock Overflow Exception?
Mar 11, 2010I have a class as below in VB.NET. The issue is class calling itself. So vb.NET throwing Stock Overflow exception. But the same class is working fine in VB6 version of code in VB6.How to resolve this issue?
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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 RepliesAsp.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].......
View 8 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
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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)
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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
ExecuteNonQuery Not Throwing Error When Command Is Wrong
Oct 7, 2010I'm passing in a sql command such as "EXEC StoredProc 0" into a a function called ExecMyCommand where StoredProc is a stored procedure taking a parameter of 1 or 0.It works fine with the following code.I had tried to judge success by looking at NumRowsAffected but soon realized that the -1 could represent a successful run even if -1 was the return value.So then I changed the code and return mLastRunOutcome = False if there is an error.So for testing I changed the name of the SP to like StoredProc2 in the database and ran the same command "EXEC StoredProc 0" and to my amazement, no errors were thrown in the code below..Of course ran the same command in Query Analyzer and it barked that there was no SP by that name.How do I know when a command ran successfully or not in code here? and Why didn't the ExecuteNonQuery throw an error when the command was not right??[code]
View 2 RepliesStop A Program During Execution Any Other Way Than By Throwing An Error?
Aug 19, 2009Is there a command that will stop the execution of my program?
I have a service that is processes an exchange account via telnet every 10 minutes. During one point of execution the application could possibly have a response from the telnet session when there are NO e-mails in the folder, which would look something like this[code]...
So is it possible for me to just stop my application at that point since there's no point in continuing if there are no e-mails in the account?
VB ListBox.Items Throwing Compile Error?
Apr 18, 2011I am trying to read all selected items from a listbox in Visual Basic.
Dim x As Integer
Dim testValue As String
testValue = "20"
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Dataset Sqladapter Throwing Error For Mobile Web Application
Apr 8, 2010I'm developing a mobile website using vb.net but having set my tools right as I read somewhere, I've having an object reference...null error from the sqladapter line. I'm trying to authenticate by checking the db for username and password and granting or denying access asthe case maybe, [code]
View 6 RepliesObject Arrary Throwing Error On Element Type On ReDim
Mar 23, 2012I have been trying to assign value to an object array that is defined as follows.Dim englishTextAry As Object(,) = New Object(,) {}I am looping through a dataReader and trying to assign the values to this array with the following code.[code]But the ReDim is throwing an error on dataVal not being an Integer.What am I doing wrong here? Can anyone point me in the right direction?
View 2 RepliesThrowing Exceptions For User ? Or Better To Design Custom Error Message Framework?
Nov 10, 2010I never got into detailed error processing too much when I played in VBA/VB6 a lot. Mostly then, if you ran into a user error (such as some input of theirs failing a validation test of some kind), you popped a MsgBox() with some error information and the critical (or warning) icon, and safely aborted out of the code
In .NET, my reading basically points to exceptions as the end-all in error handling. It looks to me that if you know a spot of code where a user can screw up, you're supposed to catch it with either try...catch blocks (for things like data conversions), or standard if...the...else constructs for other things, and then throw a new exception if needed.
Isn't throwing an exception essentially a forced crash of a program in a sense (granted, you get the option of continuing)? Or are exceptions geared specifically for things like data conversion errors and other "things that shouldn't happen", and resume use of MsgBox() and friends for minor user screwups?
Consider the case of where you have a TextBox that is only supposed to accept numeric data (or heck, just a specific set of characters). Barring some other trick that lets you restrict that field (let's just assume it's freeform, programatically), it would seem a bit of a waste to throw new exceptions everytime they type in an invalid character, or even if the error checking doesn't happen until they press a submit button (like on a webpage). Popping a MsgBox() seems more sane in that case.
So what's the straight dope on exceptions and throwing new ones on user errors? How about if your program also exposes a programmatic framework? Bad usage of one of the programmatic functions definitely seems like new exception territory to me.
Throwing Exception Error - Calculate The Ever Popular Mortgage Payment And Amortize The Loan In A List Box
May 23, 2010Number of downloads: 81This program is supposed to calculate the ever popular mortgage payment and amortize the loan in a list box. I keep throwing this error "Missing Member Exception" and can not find out how to fix it anywhere. Because of the error I can't even see if I can even get a calculation in the text box, let alone if the amortization will run. The purple text is where the exception is.
Public Class HarlessSmithIA3
Dim LoanAmt, Int, Result, Term As Double
Dim txtIntRate As New Object
Dim txtLoanAmount As New Object
Dim txtLoanTerm As New Object
Dim txtMonthlyPayment As New Object
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Multi Threading - Automatic Error Notification System
Feb 1, 2010Multi threading in vb.net, in one of our program I provided an automatic error notification system that gives alert to my email when an exception error is occurred. The error notification includes the name of the form, the exception error details, the event name and the screenshot of the software during that particular instant.
View 6 RepliesVS 2008 : Throwing Errors Inside Functions?
Aug 8, 2010I'm familiar with Throw New Exception(), and how this causes an application to "break" with an error at the Throw line itself.But what I'm after is a way to throw the exception within a function, and for the application to break at the line which called the function - not at the Throw statement itself.Is there a way of doing this, but without having to wrap the function call within a Try-Catch?
For example:
1. Main code calls function "DoThis()"
2. DoThis() runs and throws an exception
3. Code breaks at "Call DoThis()"
VBA Throwing A Run-time Error 429 "ActiveX Component Can't Create Object"?
Jun 3, 2009Source File: MathNet.dll
Output file: MathNet.tlb
Included Classes MathNet.Division and MathNet.Multiplication
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[2008] Cast Bindingsource.current To Datarow Throwing Exception?
Jan 14, 2009im dr As DataRow = CType(Me.ProductBindingSource.Current, DataRowView).Rowbut I get the error saying:
View 15 RepliesVS 2008 Automatic Fill Of A Table?
Jun 20, 2012I am new in forum and in VB 2008 as well, I have a little background in VB6 I am making a program for a project and I need to calculate some mathematical formulas and the results I want to send them in an external device via serial port. To be more specific I have a function, like y(x)=a*x+y0. I get the starting and ending x and y from textbox and I calculate the respective y but I want to store each x and the resulting y(x) in order to send them after the completion of the complete calculation to the serial port.I have tried with datagrid view and dataset but I cannot fill the tables with the results.Does anyone have any idea what I can do.
View 1 RepliesVS 2008 - Automatic Caps Lock On Starting Particular App
Dec 20, 2011I want that when I start a particular vb.net application, the caps lock should be automatically turned on. How can this be done?
View 1 RepliesVS 2008 - Using Hotkeys To Automatic Program Start
Nov 14, 2010For sample. I do a 2 start button. Start and stop but I use hotkey to automatic start (my program will automatic press Tab and 1). When I press F9 will start and F10 to stop but when I'm in my program but my problem. When I click in notepad then I press F9 it won't work?
Here the code I used:
Private Sub Form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
If e.KeyCode = System.Windows.Forms.Keys.F10 Then
StartButton.PerformClick()
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VS 2008 Automatic Download Suddenly Not Working?
Jun 25, 2009I�m using the my.computer.network.downloadfile (something like that) to download the html source to a text file. It has been working for about a year now.
Today it stopped working and the downloaded files are empty. I�ve talked to the people at the website, and they say they haven�t done anything. But they always say that.
Is there a way to "block" an automated download process of this kind, and how do I get around it?
VS 2008 Automatic Start Program By Pressing F12
Nov 14, 2010i do a program that automatic press Tab and 1 But i do a 2 button 1st button is to Start the Program and 2nd program to stop program?? any one can do when i press F12 the program will start and when i press F9 the program will Stop?
View 1 RepliesVS 2008 Building File Install Automatic?
Aug 10, 2009company buy some program(create by VB.net) It's easy for customer install it. in program have SQL Server 2005,crystalreport viewer,.net fremework.. i know only use shell for run exe file, but the program install all automatic, it's set registry and database name for you, you do only click next for install.My boss want to me do it but i don't know how to do.
View 3 RepliesVS 2008 Detection Of Word And Automatic Input?
Sep 20, 2010how to detect certain word so that I can automatically enter certain word and enter it... example: USERNAME: rexie
how to detect the word "USERNAME"? how to input the word "rexie" automatically(without typing in the keyboard)? how to enter after the word rexie?
VS 2008 MS Report Viewer - Automatic Printing?
Oct 5, 2010I want the report to automatically print after the report in the reportviewer has finished rendering.I need a code that selects/finds the default printer for that PC and then prints the report, using the properties set in the report (like the Margins)So to sum this all up: I want to skip the part of the print dialog and selecting the default printer. The report must just render, print and close the form.
View 1 RepliesVS 2008 Saving Automatic Login Information?
Dec 6, 2009I am trying to create a program that will have an option to automatically log you into a couple sites when you press the Start button. I have a separate form that you can open and put in your Username and Password for each site. There is a button that when you press it it is supposed to write to a file (C:DesktopAccounts.txt) you username and password so that when it is opened again you will not have to type them again. I had it working perfectly until I added some code so that it will remember if you had the check box checked and have the text box as read only (if check box is not checked). I even tried deleting the new code but it still will not write to the file, but it can read from it if I put the information in manually.
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VS 2008 Automatic Dump File For Program Crash?
Jun 1, 2011I have a VB.NET 2008 program that crashes about once a month at a customer location. My log file does not include any clues of the crash, the program just dies with the infamous SEND / DONT SEND window.So I need to setup my customers so that in the event of a program crash, a DUMP file is created automatically, without any user intervention. Everything I read on internet indicates that the drwtsn32.exe program does that.
View 3 RepliesA Calling Error With SAP And .NET
May 14, 2012I was using .NET for development an SAP application but recently, it always shows me the message below:
failed to call remote function module
I didn't change any setting or source code. But it still has the problem.
Error While Calling A Sub
Jun 22, 2010How can I call this sub? Getting an error as it is attached in the .JPG.
View 2 Replies