How To Get Error Message In Vb.net
resources Windows Server 2012 resources Programs MSDN subscriptions Overview Benefits Administrators Students Microsoft Imagine Microsoft Student Partners ISV Startups TechRewards Events Community Magazine Forums Blogs Channel 9 Documentation APIs and reference Dev centers Retired content Samples We’re sorry. The content you requested has been removed. You’ll be auto redirected in 1 second. Exception and Error Handling in Visual Basic Structured Exception Handling in Visual Basic Exception Handling Tasks (Visual Basic) Exception Handling Tasks (Visual Basic) How to: Display an Exception's Message in Visual Basic How to: Display an Exception's Message in Visual Basic How to: Display an Exception's Message in Visual Basic How to: Catch an Exception in Visual Basic How to: Throw an Exception in Visual Basic How to: Implement I/O Try...Catch Blocks in Visual Basic How to: Test Code with a Try…Catch Block in Visual Basic How to: Clean up Resources with a Try…Finally Block in Visual Basic How to: Filter Errors in a Catch Block in Visual Basic How to: Display an Exception's Message in Visual Basic How to: Create New Exception Classes in Visual Basic How to: Check an Exception's Inner Exception (Visual Basic) TOC Collapse the table of content Expand the table of content This documentation is archived and is not being maintained. This documentation is archived and is not being maintained. How to: Display an Exception's Message in Visual Basic Visual Studio 2010 Other Versions Visual Studio 2008 Visual Studio 2005 The exception object includes a number of properties that help identify the code location, the type, the Helpfile URL, and the reason for the exception. One of these, the Message property, describes the current exception.To display the string associated with an exceptionUse the Message property to display information about the current exception. This example catches a WebException and displays the associated message. VB Copy Try Throw New System.Net.WebException Catch ex As System.Net.WebException MsgBox("An exception occurred:" & vbCrLf & ex.Message) End Try See AlsoTasksHow to: Catch an Exception in Visual BasicHow to: Throw an Exception in Visual BasicHow to: Test Code with a Try…Catch Block in Visual BasicHow to: Check an Exception's Inner Exception (Visual Basic)Troubleshooting Exception Handling (Visual Basic)ReferenceTry...Catch...Finally Statement (Visual Basic)Other ResourcesStructured Exception Handling in Visual Basic Commun
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How to catch an exception and show its details [closed] up vote 0 down vote favorite I'm wondering how I'd go about catching an error and then displaying its details in a custom https://msdn.microsoft.com/en-us/library/cbc51cdy(v=vs.100).aspx ListBox or something. The idea is to allow a custom message to appear that's simple, like "Woops, something's went wrong!" but still be able to provide the information for troubleshooting. If someone could help me build this code I'd be really grateful. So say I have code that could result in an error, like connecting to the internet. How would I be able to catch the error and display it in a separate form (pop-up window)? I apologize if http://stackoverflow.com/questions/20955027/how-to-catch-an-exception-and-show-its-details this seams really basic but I'm new to this stuff and I just don't like the normal error window. vb.net exception-handling share|improve this question edited Jan 6 '14 at 17:11 Jeff Bridgman 3,73282967 asked Jan 6 '14 at 16:53 user2980316 4219 closed as off-topic by Will, Rahul, Neolisk, Stewie Griffin, Mithun Sreedharan Mar 5 '14 at 14:39 This question appears to be off-topic. The users who voted to close gave this specific reason:"Questions on professional server- or networking-related infrastructure administration are off-topic for Stack Overflow unless they directly involve programming or programming tools. You may be able to get help on Server Fault." – Will, Rahul, Stewie GriffinIf this question can be reworded to fit the rules in the help center, please edit the question. use try-catch in vb.net. see here msdn.microsoft.com/en-us/library/fk6t46tz.aspx –Rahul Jan 6 '14 at 17:03 add a comment| 5 Answers 5 active oldest votes up vote 0 down vote Here is a code template to get you started: Try 'Your code Catch ex As Exception MessageBox.Show("Woops, something's went wrong!") 'get troubleshooting info out of ex, stack trace perhaps End Try share|improve this answer answered Jan 6 '14 at 17:08 Neolisk 17.1k63969 add a comment| up vote 0 down vote Use following code to output error to user: Try 'code Catch ex As Exception MessageBox.Show(string.Format("Error: {0}", ex.Message)) End Try I'm wondering how I'd go about catching an error and then displaying its detail
for Beginners Try ... Catch in VB .NET This lesson is part of an ongoing tutorial. The previous part is here: Runtime Errors VB.NET has a inbuilt class that deals with errors. The Class is called http://www.homeandlearn.co.uk/NET/nets5p4.html Exception. When an exception error is found, an Exception object is created. The coding structure VB.NET uses to deal with such Exceptions is called the Try Catch structure. In the coding area for your button, type the word Try. Then http://www.codeproject.com/Articles/13658/VB-NET-Error-Handling hit the return key on your keyboard. VB.NET completes the rest of the structure for you: Try Catch ex As Exception End Try The Try word means "Try to execute this code". The Catch word means "Catch any errors here". how to The ex is a variable, and the type of variable it is is an Exception object. Move your line of code from the previous section to the Try part: Try rt1.LoadFile("C:\test10.txt", RichTextBoxStreamType.PlainText) Catch ex As Exception End Try When you run your programme, VB will Try to execute any code in the Try part. If everything goes well, then it skips the Catch part. However, if an error occurs, VB.NET jumps straight to Catch. Add the following to your Catch how to get part: MessageBox.Show(ex.Message) Your coding window should look like this: Because ex is an object variable, it now has its own Properties and methods. One of these is the Message property. Run your programme and test it out. Click your button. You should see the following error message: The message is coming from the "additional Information" section of the error message we saw earlier, the one we didn't handle. But the point about this new message box is that it will not crash your programme. You have handled the Exception, and displayed an appropriate message for the user. If you know the kind of error that a programme might throw, you can get what Type it is from the Error message box you saw earlier. This one: Click the View Details links under Actions to see the following: The first line tells us the Type of Exception it is: System.IO.FileNotFoundException You can add this directly to the catch part. Previously, you were just catching any error that might be thrown: Catch ex As Exception But if you know a "file not found" error might be thrown, you can add that to the Catch line, instead of Exception: Catch ex As System.IO.FileNotFoundException You can keep the Exception line as well. (You can have as many Catch parts as you want.) This will Catch any other errors that may occur: Try rt1.LoadFile("C:\test10.txt", RichTextBoxStreamType.PlainText) Catch ex As System.IO.FileNotFoundException MessageBox.Show(ex.Message) Catch ex As Exception MessageBox.
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