On Error Resume Next Vbscript
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Vbscript On Error Exit
be auto redirected in 1 second. VBScript VBScript Language Reference Statements (VBScript) Statements (VBScript) On Error Statement On Error Statement On Error Statement Call Statement Class
On Error Resume Next Vbscript W3schools
Statement (VBScript) Const Statement (VBScript) Dim Statement Do...Loop Statement Erase Statement Execute Statement ExecuteGlobal Statement Exit Statement For Each...Next 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 on error resume next not working 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 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
error handling On Error goto on error goto line 0 - Disable error handling Error properties: err.Number (default) err.Source err.Description Examples error handling in vbscript tutorial In the examples below - replace the 'code goes here' line with your VBScript commands. Example 1) Trap https://msdn.microsoft.com/en-us/library/53f3k80h(v=vs.84).aspx an error On Error Resume Next' code goes hereIf Err.Number <> 0 Then 'error handling: WScript.Echo Err.Number & " Srce: " & Err.Source & " Desc: " & Err.Description Err.ClearEnd If Example 2) Trap an error or http://ss64.com/vb/onerror.html success On Error Resume Next' code goes hereIf Err.Number = 0 Then WScript.Echo "It worked!" Else WScript.Echo "Error:" WScript.Echo Err.Number & " Srce: " & Err.Source & " Desc: " & Err.Description Err.ClearEnd If Example 3) Trap an error On Error Resume Next' code goes hereIf Err.Number <> 0 Then ShowError("It failed") Sub ShowError(strMessage) WScript.Echo strMessage WScript.Echo Err.Number & " Srce: " & Err.Source & " Desc: " & Err.Description Err.Clear End Sub “Success is falling nine times and getting up ten” ~ Jon Bon Jovi Related: Syntax - error codes InputBox - Prompt for user input Equivalent in PowerShell: ErrorAction and $errorActionPreference © Copyright SS64.com 1999-2016 Some rights reserved
ASP.NET (44) ASPIntranet.de (5) C# (28) Datenbank (44) Dokumentation (4) IIS 6.0 (1) Komponenten (29) Optimierung (10) Server (21) Sicherheit (34) Tee Off (6) VB.NET http://www.aspheute.com/artikel/20001011.htm (6) WAP (8) Web Services (11) XML (9) Suchen English Articles Chinese Articles Unsere Autoren Link zu AspHeute Impressum Werben Anfragen Fehlerbehandlung richtig eingesetzt Geschrieben von: Christian Koller https://www.tutorialspoint.com/qtp/qtp_error_handling.htm Kategorie: ASP Tricks Fehlerbehandlung in ASP Seiten ist ein Thema, das viel zu oft vernachlässigt wird. ASP Seiten werden von Entwicklern geschrieben und getestet. Gedanken an das mögliche Auftreten von on error Fehlern werden ignoriert, Fehlerbehandlung findet nicht statt. Wozu dient Fehlerbehandlung, wie funktioniert sie in ASP, und worauf muß man achten? Diese Fragen möchte der vorliegende Artikel anschneiden und beantworten. Fehlerbehandlung in ASP Wenn in einem ASP Skript ein Laufzeit-Fehler (run-time error) auftritt, so stoppt das Skript im allgemeinen und schreibt eine Fehlermeldung zum Browser. Um Laufzeitfehler im Skript selbst auffangen on error resume zu können, die Fehlermeldung zu unterdrücken und Informationen über Art und Quelle des Fehlers zu bekommen, erlaubt ASP in VBScript die Verwendung der Befehle "On Error Resume Next" und "On Error Goto 0". On Error Resume Next bewirkt, daß das Skript auch bei einem Laufzeitfehler weiter ausgeführt wird. Der eigentliche Zweck des Befehls ist aber nicht, den Fehler nur zu unterdrücken, sondern das Skript weiter auszuführen um Fehlerbehandlungsroutinen dem Problem gemäß reagieren zu lassen. Die eigentliche Fehlerbehandlung benutzt das ASP Objekt namens Err. Mittels Err Objekt kann nicht nur der Error-Code des letzten Laufzeitfehlers, sondern seine Quelle und eine kurze Beschreibung des Fehlers ausgelesen werden. Selbstverständlich kann man die Wirkung des "On Error Resume Next" Befehles wieder aufheben. Dazu dient der Befehl "On Error Goto 0". Um nun einen Teil des Sourcecodes eines ASP Skripts in einer Fehlerbehandlung zu kapseln, benutzt man einen Codeblock wie folgt: %lt;% ' Fehler abfangen On Error Resume Next ' Es tritt ein Fehler auf: strA = missingObject.Property ' Auf Fehler pruefen If Err.Number <> 0 Then ' Fehlerbehandlung: Response.Write("Es ist ein Laufzeitfehler aufgetreten!") Response.Write("Fehl
QTP - Record and Play Back QTP - Object Repository QTP - Actions QTP - DataTables QTP - Checkpoints QTP - Synchronization QTP - Smart Identification QTP - Debugging QTP - Error Handling QTP - Recovery Scenarios QTP - Environment Variables QTP - Library Files QTP - Test Results QTP - GUI Objects QTP - Virtual Objects QTP - Accessing Databases QTP - Working with XML QTP - Descriptive Programming QTP - Automation Object Model QTP - Frameworks QTP Useful Resources QTP - Questions and Answers QTP - Quick Guide QTP - Useful Resources QTP - Discussion Selected Reading Developer's Best Practices Questions and Answers Effective Resume Writing HR Interview Questions Computer Glossary Who is Who QTP - Error Handling Advertisements Previous Page Next Page What is Error Handling? There are various ways on handling errors in QTP. There are three possible kinds of error type one would encounter while working with QTP. Syntax Errors Logical Errors Run Time Errors Error Types: Syntax Errors: Syntax errors are the typos or a piece of the code that does not confirm with the VBscripting language grammar. Syntax errors occur at the time of compilation of code and cannot be executed until the errors are fixed. To verify the syntax one use the keyboard shortcut as Ctrl+F7 and the result is displayed as shown below. If the window is NOT displayed one can navigate to "View" → "Errors". Logical Errors: If the script is syntactically correct but it produces unexpected results. Logical error usually does not interrupt the execution but produces incorrect results. Logical errors could occur due to variety of reasons, viz- wrong assumptions or misunderstanding of the requirement and sometimes incorrect program logics(using do-while instead of do-Until) or Infinite Loops. One of the ways to detect a logical error is to perform peer reviews and also verifying the QTP output file/result file to ensure the tool has performed what it has intended to do. RunTime Errors: As The name states, this kind of Error happens during Run Time. The reason for such kind of errors is that the script trying to perform something but it is unable to do so and the script usually stops as it is unable to continue with the execution. Classic Examples for Run Time Errors are, File NOT found but the script trying to read the file. Object NOT found but script is trying to act on that particular object. Dividing a number by Zero. Array Index out of bounds while accessing array elements. Hand