This article shows you how to concatenate multiple fields for use in a form
or a report. This is especially useful in a mailing label report when some
fields are Null or empty. Null fields can cause blank lines to be printed on a report. Additionally, you may want to be able to copy and paste an entire name and address from a form into another application, such as Microsoft Word.
By using the
IIf() and the
IsNull() functions, you can determine if a field is blank. If a field is blank, it returns an "empty" value. Chr(13) and Chr(10) are used to add a return and a line feed character to the text box.
Follow these steps to create a concatenated field that eliminates blank
lines. This example uses a form, but the same steps also apply to reports.
- Open the sample database Northwind.mdb.
- Create a new form that is based on the Employees table, and open it in Design view.
- Add a text box control to the detail section of the form, and then
set the following properties.
Text Box
---------------------------------------------------------------
ControlName: Full Address
ControlSource:
=IIf(IsNull([FirstName]),"",[FirstName] & " ") & _
IIf(IsNull([LastName]),"",[LastName]& Chr(13)& Chr(10)) & _
IIf(IsNull([ADDRESS]),"",[ADDRESS] & Chr(13) & Chr(10)) & _
IIf(IsNull([CITY]),"",[CITY] & ", ") & _
IIf(IsNull([REGION]) ,"",[REGION] & " ") & _
IIf(IsNull([PostalCode]),"",[PostalCode])
CanGrow: Yes
CanShrink: Yes
- Open the form in Form view. Note that there are no blank lines, even if some of the fields in the Employees table are blank.
For more information about the IIf() function, in the Visual Basic Editor, click
Microsoft Visual Basic Help on the
Help menu, type
IIf() in the Office Assistant or the Answer Wizard, and then click
Search to view the topic.
For more information about the IsNull() function, in the Visual Basic Editor, click
Microsoft Visual Basic Help on the
Help menu, type
IsNull() in the Office Assistant or the Answer Wizard, and then click
Search to view the topic.
For more information about working with fields that contain no data, click
Microsoft Access Help on the
Help menu, type
About working with blank fields in queries in the Office Assistant or
the Answer Wizard, and then click
Search to view the topics
returned.