Access 2000 #error In Report
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controls don't exist, you cannot sum them. In forms The problem does not arise in forms that display the new record. It does occur if
Ms Access #error
the form's Allow Additions property is Yes, or if the form is #error access query bound to a non-updatable query. To avoid the problem, test the RecordCount of the form's Recordset. In older
Access #error In Textbox
versions of Access, that meant changing: =Sum([Amount]) to: =IIf([Form].[Recordset].[RecordCount] > 0, Sum([Amount]), 0) Access 2007 and later have a bug, so that expression fails. You need a function. Copy #error in access report this function into a standard module, and save the module with a name such as Module1: Public Function FormHasData(frm As Form) As Boolean 'Purpose: Return True if the form has any records (other than new one). ' Return False for unbound forms, and forms with no records. 'Note: Avoids the bug in Access 2007 where text boxes cannot use: ' [Forms].[Form1].[Recordset].[RecordCount] On #error in access form Error Resume Next 'To handle unbound forms. FormHasData = (frm.Recordset.RecordCount <> 0&) End Function Now use this expression in the Control Source of the text box: =IIf(FormHasData([Form]), Sum([Amount]), 0) Notes Leave the [Form] part of the expression as it is (i.e. do not substitute the name of your form.) For Access 97 or earlier, use RecordsetClone instead of Recordset in the function. A form with no records still has display problems. The workaround may not display the zero, but it should suppress the #Error. In reports Use the HasData property property, specifically for this purpose. So, instead of: =Sum([Amount]) use: =IIf([Report].[HasData], Sum([Amount]), 0) If you have many calculated controls, you need to do this on each one. When Access discovers one calculated control that it cannot resolve, it gives up on calculating the others. Therefore one bad expression can cause other calculated controls to display #Error, even if those controls are bound to valid expressions. For details of how to do this with subreports, see Bring the total from a subreport onto a main report. Home Index of tips Top
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Access want me to enter a parameter value? Applies To: Access 2010, Access 2007, Less Applies To: Access 2010 , Access 2007 , More... Which version do I have? More... Symptoms When you open a Microsoft Office Access object (such as a table, query, form, or report), Access displays the Enter Parameter Value dialog box. Cause Access displays the Enter Parameter Value dialog box when you open an object that contains an identifier or expression that Access cannot interpret. In some cases, this is the behavior that you want. For example, the creator of the database might have created a query that lets you enter information every time that the query runs, such as a start date or an employee ID number. Such a prompt might resemble this: However, in other cases you do not want this dialog box to appear. For example, you might have made some changes to the design of your database, and now when you open an object, Access displays the dialog box unexpectedly with a message you do not understand. Resolution To stop the Enter Parameter Value dialog box from appearing, you must inspect any expressions that are associated with the object that you are working with, and find the identifier that is causing the dialog box to appear. Then, you must correct the identifier or the syntax of the expression that contains the identifier. The following procedures provide general guidelines for inspecting the expressions in different types of objects. However, the specific changes that you must make depend on the structure of your database. Find links to more information about expression syntax in the See Also section. When the unwanted Enter Parameter Value dialog box appears, note the identifier or expression that is listed in the dialog box: Click Cancel. Continue with one of the following procedures, depending on the type of object that you are opening when the dialog box appears. Inspect expressions in a query Inspect expressions in a report Inspect expressions in a form Inspect expressions in a table Inspect expressions in a query Typographical errors in queries are a frequent cause of unwanted parameter prompts. As mentioned earlier