On Error Function
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Basic Language Reference Statements F-P Statements F-P Statements On Error Statement On Error Statement On Error Statement For Each...Next Statement For...Next Statement Function Statement Get Statement GoTo Statement
Vba Error Handling Best Practices
If...Then...Else Statement Implements Statement Imports Statement (.NET Namespace and Type) Imports Statement (XML Namespace) Inherits Statement Interface Statement Mid Statement Module Statement Namespace Statement On Error Statement Operator Statement Option
To: Excel 2016, Excel 2013, Excel 2010, Excel 2007, Excel 2016 for Mac, Excel for Mac 2011, Excel Online, Excel for iPad, Excel for iPhone, Excel for Android tablets, Excel Starter, Excel Mobile, Excel for Android phones, Less Applies To: Excel 2016 , Excel 2013 , Excel 2010 , vba on error goto 0 Excel 2007 , Excel 2016 for Mac , Excel for Mac 2011 , Excel Online , vba error handling in loop Excel for iPad , Excel for iPhone , Excel for Android tablets , Excel Starter , Excel Mobile , Excel for Android phones , vba error number More... Which version do I have? More... This article describes the formula syntax and usage of the IFERROR function in Microsoft Excel. Description Returns a value you specify if a formula evaluates to an error; otherwise, returns the result of https://msdn.microsoft.com/en-us/library/5hsw66as.aspx the formula. Use the IFERROR function to trap and handle errors in a formula. Syntax IFERROR(value, value_if_error) The IFERROR function syntax has the following arguments: Value Required. The argument that is checked for an error. Value_if_error Required. The value to return if the formula evaluates to an error. The following error types are evaluated: #N/A, #VALUE!, #REF!, #DIV/0!, #NUM!, #NAME?, or #NULL!. Remarks If Value or Value_if_error is an empty cell, IFERROR treats it as an empty string value (""). If https://support.office.com/en-us/article/IFERROR-function-c526fd07-caeb-47b8-8bb6-63f3e417f611 Value is an array formula, IFERROR returns an array of results for each cell in the range specified in value. See the second example below. Examples Copy the example data in the following table, and paste it in cell A1 of a new Excel worksheet. For formulas to show results, select them, press F2, and then press Enter. If you need to, you can adjust the column widths to see all the data. Quota Units Sold 210 35 55 0 23 Formula Description Result =IFERROR(A2/B2, "Error in calculation") Checks for an error in the formula in the first argument (divide 210 by 35), finds no error, and then returns the results of the formula 6 =IFERROR(A3/B3, "Error in calculation") Checks for an error in the formula in the first argument (divide 55 by 0), finds a division by 0 error, and then returns value_if_error Error in calculation =IFERROR(A4/B4, "Error in calculation") Checks for an error in the formula in the first argument (divide "" by 23), finds no error, and then returns the results of the formula. 0 Example 2 Quota Units Sold Ratio 210 35 6 55 0 Error in calculation 23 0 Formula Description Result =C2 Checks for an error in the formula in the first argument in the first element of the array (A2/B2 or divide 210 by 35), finds no error, and then returns the result of the formula 6 =C3 C
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 http://stackoverflow.com/questions/19042604/vba-excel-error-handling-especially-in-functions-professional-excel-developm 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 https://api.jquery.com/error/ Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up VBA Excel Error on error Handling - especially in functions - Professional Excel Development Style up vote 5 down vote favorite 4 I got the book "Professional Excel Development" by Rob Bovey and it is opening up my eyes. I am refitting my code with error handling. However, there is a lot I don't understand. I especially need to know how to correctly use it in functions. I use on error goto Bovey's rethrow version of the error handler (at bottom). When I started, I was using the basic boolean (non-rethrow) method and turned my subroutines into boolean functions. (P.S. I am switching back to the boolean method based on the answer.) I need guidance on how to fit functions into this scheme. I want them to return their real values (a string or double, e.g., or -1 if they fail in some cases) so I can nest them in other functions and not just return an error handling boolean. This is what a typical subroutine call to bDrawCellBorders(myWS) would look like within an entry point. Sub calls seem to be working well. (I.e. it is a subroutine that was turned into a function only so it can return a boolean to the error handling scheme.) Sub UpdateMe() ' Entry Point Const sSOURCE As String = "UpdateMe()" On Error GoTo ErrorHandler Set myWS = ActiveCell.Worksheet Set myRange = ActiveCell myWS.Unprotect ' lots of code If Not bDrawCellBorders(myWS) Then ERR.Raise glHANDLED_ERROR ' Call subroutine ' lots of code ErrorExit: On Error Resume Next Application.EnableEvents = True myWS.Protect AllowFormattingColumns:=True Exit Sub ErrorHandler: If bCentralErrorHandler(msMODULE, sSOURCE,,True) Th
Team Conduct Brand Guide Donate jQuery API Documentation Download API Documentation Blog Plugins Browser Support search Search jQuery API Documentation .error() Categories: Events > Browser Events | Deprecated > Deprecated 1.8 | Removed .error( handler )Returns: jQueryversion deprecated: 1.8, removed: 3.0 Description: Bind an event handler to the "error" JavaScript event. version added: 1.0.error( handler ) handler Type: Function( Event eventObject ) A function to execute when the event is triggered. version added: 1.4.3.error( [eventData ], handler ) eventData Type: Anything An object containing data that will be passed to the event handler. handler Type: Function( Event eventObject ) A function to execute each time the event is triggered. This method is a shortcut for .on( "error", handler ). As of jQuery 1.8, the .error() method is deprecated. Use .on( "error", handler ) to attach event handlers to the error event instead. The error event is sent to elements, such as images, that are referenced by a document and loaded by the browser. It is called if the element was not loaded correctly. For example, consider a page with a simple image element: 1 <img alt="Book" id="book"> The event handler can be bound to the image: 1 2 3 4 5 $( "#book" ) .error(function() { alert( "Handler for .error() called." ) }) .attr( "src", "missing.png" ); If the image cannot be loaded (for example, because it is not present at the supplied URL), the alert is displayed: Handler for .error() called. The event handler must be attached before the browser fires the error event, which is why the example sets the src attribute after attaching the handler. Also, the error event may not be correctly fired when the page is served locally; error relies on HTTP status codes and will generally not be triggered if the URL uses the file: protocol. Note: A jQuery error event handler should not be attached to the window object. The browser fires the window's error event when a script error occurs. However, the window error event receives