In 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.
For 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)
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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?
I 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.
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how 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
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Why would my try-catch block still be throwing an error when it's handled?[code].......
View 8 RepliesIs there some special way to catch exceptions in finally block ?
View 2 RepliesI'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)
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This 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:
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We'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 RepliesI 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?
I 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?
I'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"
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I 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.
This 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:'
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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?
okay i have this code
Private Sub Form_OpenGradeBook_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
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I 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?
Catch block in text.vb and display the results in default.aspx
View 5 RepliesIs there a way to show the line number of the line of code that caused an exception within a Try...Catch block?
View 5 RepliesThis 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.
I'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 database application with error handling in a separate module.
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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.
Using Visaul Basic 2010; the program auto fills a web page displayed in the WebBrowser container on the form (with the value contained within TextBox2) as follows:
[code] WebBrowser1.document.GetElementById("frmLogin:strCustomerLogin_pwd").SetAttribute("Value", TextBox2.Text)[code]
What reference is needed to to replace 'WebBrowser1' so that the Current browser window can be accessed, be it IE or Firefox, so that the same could be achieved?
I am new to visual basic 2008 and am trying to navigate to a web site and automatically enter my username and password from within a visual basic program. Then I want to navigate to another page and fill data in various fields on the page.
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I have this picture to be more clear:[URL]..My idea is when I paste (ctrl+v) for example this number :
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I have this picture to be more clear:My idea is when I paste (ctrl+v) for example this number :4111111111111111it would automatically paste them in textboxes one by one in order!
so txtBox1 will contain : 4111
txtBox2 : 1111
txtBox3 : 1111
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I want to autofill the username and password field by my vb program. My Program contains webbrowser control and needs to autofill and invoke the signin button.
I already have the experience with autologin of gmail,yahoo... But here my problem is i cant find the tag name or name of the field which i want to fill the value...
Here the url which i want to autofill : [URL]
I have a access db with 2 tables. Student School. When adding rows to the Student table for the field School the selection is a drop-down list. I want the school address to automatically populate the Student table for the field School Address on the Student table.
The access db is a small file attached and at [URL]
I have a program that will load a web page into the Program Contained 'Webbrowser1' and autocomplete the Login by referencing the Code:
WebBrowser1.Document.GetElementById( _
"frmLogin:strCustomerLogin_userID").SetAttribute("Value",
TextBox1.Text)
What I actually want to do is directly enter the Value into the Active Browser page, rather than the program contained 'Webbrowser1'. What code do I need to access the Current Browser Web page (be it IE, FireFox etc)?
i want to autofill a formula down a column of cells in excel. to manually do this, i would double-click the little black square at the bottom right of the cell, but i cannot figure out a way to do this using a macro.
View 1 Repliesi am working on a virtual make-up software and the only thing i lack to totally finish it is the lipstick part. is there a way that i can trace the edges of the lips of the picture that im editing and fill its insides with colors from a colordialog that will serve as if it applied a lipstick. just like what they have on jkiwi that users will jut trace the edges of the lips and then the color will automatically be filled out and it can be changed by choosing a color in a dialogbox.
View 1 Replies