Error Handling Visual Basic Script
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Learning Visual Basic Script
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second. VBScript VBScript Language Reference Objects and Collections Objects and Collections Err Object (VBScript) Err Object (VBScript) Err Object (VBScript) Class visual basic script download windows 7 Object Debug Object Err Object (VBScript) Err Object Properties and Methods Match Object Matches Collection Regular Expression (RegExp) Object SubMatches Collection TOC Collapse the table of content Expand the table of content This documentation https://technet.microsoft.com/en-us/library/ee692852.aspx is archived and is not being maintained. This documentation is archived and is not being maintained. Err Object (VBScript) Contains information about run-time errors. Accepts the Raise and Clear methods for generating and clearing run-time errors.RemarksThe Err object is an intrinsic object with global scope — there is no need to create an instance of it in your code. The properties of the Err object are set by the https://msdn.microsoft.com/en-us/library/sbf5ze0e(v=vs.84).aspx generator of an error — Visual Basic, an Automation object, or the VBScript programmer.The default property of the Err object is Number. Err.Number contains an integer and can be used by an Automation object to return an SCODE.When a run-time error occurs, the properties of the Err object are filled with information that uniquely identifies the error and information that can be used to handle it. To generate a run-time error in your code, use the Raise method.The Err object's properties are reset to zero or zero-length strings ("") after an On Error Resume Next statement. The Clear method can be used to explicitly reset Err.The following example illustrates use of the Err object: Copy On Error Resume Next Err.Raise 6 ' Raise an overflow error. MsgBox ("Error # " & CStr(Err.Number) & " " & Err.Description) Err.Clear ' Clear the error. Properties and MethodsErr Object Properties and MethodsRequirementsVersion 1See AlsoOn Error StatementVBScript Run-time ErrorsVBScript Syntax Errors Show: Inherited Protected Print Export (0) Print Export (0) Share IN THIS ARTICLE Is this page helpful? Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you! We appreciate your feedback. Dev centers Windows Office Visual Studio Microsoft Azure More... Learning resources Microsoft Virtual Academy Channel
Published by O'Reilly Media, Inc. VBScript in a Nutshell Preface Why This Book? Who Should Read This Book? How This Book https://www.safaribooksonline.com/library/view/vbscript-in-a/1565927206/ch04.html Should Be Used How This Book Is Structured Conventions in This Book How To Contact Us I. The Basics 1. Introduction 2. Program Structure 3. Data Types and Variables 4. Error Handling 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 visual basic 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, 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. visual basic script 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 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: