Error Handler Vbscript
Contents |
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 vbscript error handling has been removed. You’ll be auto redirected in 1 second. ActiveX Data Objects (ADO) vbs error handler Error Handling Handling Errors In Other Languages Handling Errors In Other Languages Handling Errors in VBScript Handling Errors in VBScript Handling Errors
Vbscript On Error Goto
in VBScript Handling Errors in VBScript Handling Errors in Visual C++ Handline Errors in Visual J++ Handling Errors in JScript TOC Collapse the table of content Expand the table of content This documentation is archived and
Vbscript On Error Resume Next
is not being maintained. This documentation is archived and is not being maintained. Handling Errors in VBScript There is little difference between the methods used in Visual Basic and those used with VBScript. The primary difference is that VBScript does not support the concept of error handling by continuing execution at a label. In other words, you cannot use On Error GoTo in VBScript. Instead, use On Error Resume Next and then check vbscript error handling best practices both Err.Number and the Count property of the Errors collection, as shown in the following example: Copy
Error Handling Example (VBScript)
<% Dim cnn1 Dim errLoop Dim strError On Error Resume Next ' Intentionally trigger an error. Set cnn1 = Server.CreateObject("ADODB.Connection") cnn1.Open "nothing" If cnn1.Errors.Count > 0 Then ' Enumerate Errors collection and display ' properties of each Error object. For Each errLoop In cnn1.Errors strError = "Error #" & errLoop.Number & "" & _ " " & errLoop.Description & "
" & _ " (Source: " & errLoop.Source & ")" & "
" & _ " (SQL State: " & errLoop.SQLState & ")" & "
" & _ " (NativeError: " & errLoop.NativeError & ")" & "
" If errLoop.HelpFile = "" Then strError = strError & _ " No Help file available" & _ "
" Else strError = strError & _ " (HelpFile: " & errLoop.HelpFile & ")" & "
" & _ " (HelpContext: " & errLoop.HelpContext & ")" & _ "
" End If Response.Write("
" & strError & "
") Next End If %> Show: Inherited Protected Print Export (0) Print Export (0) Share IN THIS ARTICLE Is this page helpful? Yes No Additional feedback? 1500 chararesources 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
Vbscript Error Handling Line Number
reference Dev centers Retired content Samples We’re sorry. The content you requested error handling in vbscript examples has been removed. You’ll be auto redirected in 1 second. VBScript VBScript Language Reference Statements (VBScript) Statements (VBScript) On error handling in vbscript tutorial Error Statement On Error Statement On Error Statement Call Statement Class Statement (VBScript) Const Statement (VBScript) Dim Statement Do...Loop Statement Erase Statement Execute Statement ExecuteGlobal Statement Exit Statement For Each...Next https://msdn.microsoft.com/en-us/library/ms675540(v=vs.85).aspx Statement For...Next Statement Function Statement (VBScript) If...Then...Else Statement On Error Statement Option Explicit Statement Private Statement Property Get Statement Property Let Statement Property Set Statement Public Statement Randomize Statement ReDim Statement Rem Statement Select Case Statement Set Statement Stop Statement Sub Statement While...Wend Statement With Statement (VBScript) TOC Collapse the table of content Expand the table of content This documentation is archived https://msdn.microsoft.com/en-us/library/53f3k80h(v=vs.84).aspx and is not being maintained. This documentation is archived and is not being maintained. On Error Statement Enables or disables error-handling.Syntax Copy On Error Resume Next On Error GoTo 0 RemarksIf you don't use an On Error Resume Next statement anywhere in your code, any run-time error that occurs can cause an error message to be displayed and code execution stopped. However, the host running the code determines the exact behavior. The host can sometimes opt to handle such errors differently. In some cases, the script debugger may be invoked at the point of the error. In still other cases, there may be no apparent indication that any error occurred because the host does not need to notify the user. Again, this is purely a function of how the host handles any errors that occur.Within any particular procedure, an error is not necessarily fatal as long as error-handling is enabled somewhere along the call stack. If local error-handling is not enabled in a procedure and an error occurs, control is passed back through the call stack until a procedure with error-handling enabl
Published by O'Reilly Media, Inc. VBScript in a Nutshell Preface Why This Book? Who Should Read This Book? How This Book Should Be Used How This Book Is Structured Conventions in This Book How To Contact Us I. https://www.safaribooksonline.com/library/view/vbscript-in-a/1565927206/ch04.html The Basics 1. Introduction 2. Program Structure 3. Data Types and Variables 4. Error Handling https://www.tutorialspoint.com/vbscript/vbscript_error_handling.htm and Debugging 5. VBScript with Active Server Pages 6. Programming Outlook Forms 7. Windows Script Host 8. VBScript with Internet Explorer II. Reference 9. The Language Reference III. Appendixes A. Language Elements by Category B. VBScript Constants C. Operators Index Colophon Chapter 4. Error Handling and DebuggingErrors, bugs, and therefore debugging are a part of life for a programmer. As the saying goes, error handling if you haven’t made any mistakes, then you aren’t trying hard enough.Dealing with errors actually involves two very different processes: error handling and debugging. Error handling is a combination of coding and methodology that allows your program to anticipate user and other errors. It allows you to create a robust program. Error handling does not involve weeding out bugs and glitches in your source code, although some of the error handling techniques covered in this chapter vbscript error handling can be used to great advantage at the debugging stage. In general, error handling should be part of your overall program plan, so that when you have an error-free script, nothing is going to bring it to a screeching halt. With some sturdy error handling in place, your program should be able to keep running despite all the misuse that your users can—and certainly will—throw at it.The following ASP page illustrates some simple error handling:
Enabling VBScript - Placement VBScript - Variables VBScript - Constants VBScript - Operators VBScript - Decisions VBScript - Loops VBScript - Events VBScript - Cookies VBScript - Numbers VBScript - Strings VBScript - Arrays VBScript - Date VBScript Advanced VBScript - Procedures VBScript - Dialog Boxes VBScript - Object Oriented VBScript - Reg Expressions VBScript - Error Handling VBScript - Misc Statements VBScript Useful Resources VBScript - Questions and Answers VBScript - Quick Guide VBScript - Useful Resources VBScript - Discussion Selected Reading Developer's Best Practices Questions and Answers Effective Resume Writing HR Interview Questions Computer Glossary Who is Who VBScript - Error Handling Advertisements Previous Page Next Page There are three types of errors in programming: (a) Syntax Errors and (b) Runtime Errors (c) Logical Errors. Syntax errors Syntax errors, also called parsing errors, occur at interpretation time for VBScript. For example, the following line causes a syntax error because it is missing a closing parenthesis: Runtime errors Runtime errors, also called exceptions, occur during execution, after interpretation. For example, the following line causes a runtime error because here syntax is correct but at runtime it is trying to call fnmultiply, which is a non-existing function: Logical errors Logic errors can be the most difficult type of errors to track down. These errors are not the result of a syntax or runtime error. Instead, they occur when you make a mistake in the logic that drives your script and you do