If Error In Excel Vba
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Iserror Vba
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just like you, helping each other. Join them; it only takes a minute: Sign up iferror statement for macros in vba excel up vote -2 down vote favorite I have a macro that at one point on error goto line creates a pivot table. My problem is sometimes not all the values are in the second column and I get an error. I figured a way around this by getting the values from the column to the left which are the same. But with this method if the pivots are the same I get an "error no special cells found". Sorry let me be more clear I have a column A for contract names vba error handling best practices and column C is a pivot that brings up the values of the contract from another table. Where I am getting the error is column B which has an if statement which basically says if column C is "yes" then use contract names. I still want the value if my if statement in column B produces an error What I want is something along the lines of For each cl in range("C1:C200") if error and cl.offset(0, 1).value = yes then cl.value = cl.offste(0, -1) Else Cl.value = cl.value End if excel vba loops if-statement share|improve this question edited May 21 '13 at 9:08 asked May 20 '13 at 22:53 Sean Connecticut 1152612 What are you looking to see is an error you are not testing any variables. You you looking to see if there is an error in cl? –user2140261 May 20 '13 at 23:01 1 Sean, you need to clarify. You mention a "second column", "a pivot", "the pivots", and error having to do with special cells. In order to get an answer you need to expand and expound upon these, and possibly other, items. And, as always, show us your code. –Doug Glancy May 20 '13 at 23:05 Sorry let me be more clear I have a column A for contract names
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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 If IsError in http://stackoverflow.com/questions/16659605/iferror-statement-for-macros-in-vba-excel VBA? up vote 1 down vote favorite Is it possible to use something with similar functionality as Iferror(value, value_if_error) or Iserror(value) in VBA? I tried to write: If IsError(Cells(i, c) / curr) Then 'CODE BLOCK 1 else 'CODE BLOCK 2 end if But VBA tells me that I have division by zero error when it tries to run the if-statement. It throws me into debug. http://stackoverflow.com/questions/18562252/if-iserror-in-vba But this is just the type of thing I want to trigger CODE BLOCK 1! excel-vba share|improve this question asked Sep 1 '13 at 19:48 user1283776 1,85182755 1 Why do you not just check if curr is 0 ? –Alexandre P. Levasseur Sep 1 '13 at 19:54 But yes, VBA is notably bad at error handling. –Alexandre P. Levasseur Sep 1 '13 at 19:54 There can be other types of errors as well, like there being text in the numerator. The easiest would be to just check for any error. –user1283776 Sep 1 '13 at 19:55 1 I figured I would try LINE1: On Error GoTo ErrCurr LINE2: Cells(i, c) = Cells(i, c) / instanceCurrency LINE3: On Error GoTo 0. But strangely the division by zero error isn't sent to the error handler. It triggers the debug. Any idea why? –user1283776 Sep 1 '13 at 20:04 1 I found the reason. There were some earlier GoTo statements in the code (written by another guy) that caused problems. –user1283776 Sep 1 '13 at 20:20 | show 2 more comments 2 Answers 2 active oldest votes u
three flavors: compiler errors such as undeclared variables that prevent your code from compiling; user data entry error such as a user entering a negative value where only a positive number is acceptable; and run time http://www.cpearson.com/excel/errorhandling.htm errors, that occur when VBA cannot correctly execute a program statement. We will concern ourselves here only with run time errors. Typical run time errors include attempting to access a non-existent worksheet or workbook, or attempting to http://www.excel-easy.com/vba/examples/error-handling.html divide by zero. The example code in this article will use the division by zero error (Error 11) when we want to deliberately raise an error. Your application should make as many checks as possible during on error initialization to ensure that run time errors do not occur later. In Excel, this includes ensuring that required workbooks and worksheets are present and that required names are defined. The more checking you do before the real work of your application begins, the more stable your application will be. It is far better to detect potential error situations when your application starts up before data is change than to wait until later vba on error to encounter an error situation. If you have no error handling code and a run time error occurs, VBA will display its standard run time error dialog box. While this may be acceptable, even desirable, in a development environment, it is not acceptable to the end user in a production environment. The goal of well designed error handling code is to anticipate potential errors, and correct them at run time or to terminate code execution in a controlled, graceful method. Your goal should be to prevent unhandled errors from arising. A note on terminology: Throughout this article, the term procedure should be taken to mean a Sub, Function, or Property procedure, and the term exit statement should be taken to mean Exit Sub, Exit Function, or Exit Property. The term end statement should be taken to mean End Sub , End Function, End Property, or just End. The On Error Statement The heart of error handling in VBA is the On Error statement. This statement instructs VBA what to do when an run time error is encountered. The On Error statement takes three forms. On Error Goto 0 On Error Resume Next On Error Goto
execution at a specified line upon hitting an error. Situation: Both programs calculate the square root of numbers. Square Root 1 Add the following code lines to the 'Square Root 1' command button. 1. First, we declare two Range objects. We call the Range objects rng and cell. Dim rng As Range, cell As Range 2. We initialize the Range object rng with the selected range. Set rng = Selection 3. We want to calculate the square root of each cell in a randomly selected range (this range can be of any size). In Excel VBA, you can use the For Each Next loop for this. Add the following code lines: For Each cell In rng Next cell Note: rng and cell are randomly chosen here, you can use any names. Remember to refer to these names in the rest of your code. 4. Add the following code line to the loop. On Error Resume Next 5. Next, we calculate the square root of a value. In Excel VBA, we can use the Sqr function for this. Add the following code line to the loop. cell.Value = Sqr(cell.Value) 6. Exit the Visual Basic Editor and test the program. Result: Conclusion: Excel VBA has ignored cells containing invalid values such as negative numbers and text. Without using the 'On Error Resume Next' statement you would get two errors. Be careful to only use the 'On Error Resume Next' statement when you are sure ignoring errors is OK. Square Root 2 Add the following code lines to the 'Square Root 2' command button. 1. The same program as Square Root 1 but replace 'On Error Resume Next' with: On Error GoTo InvalidValue: Note: InvalidValue is randomly chosen here, you can use any name. Remember to refer to this name in the rest of your code. 2. Outside the For Each Next loop, first add the following code line: Exit Sub Without this line, the rest of the code (error code) will be executed, even if there is no error! 3. Excel VBA continues execution at the line starting with 'InvalidValue:' upon hitting an error (don't forget the colon). Add the following code line: InvalidValue: 4. We keep our error code simple for now. We display a MsgBox with some text