Microsoft KB Archive/157034

= XL97: Cannot Use External References with Data Validation =

PSS ID Number: 157034

Article Last Modified on 10/21/2000

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The information in this article applies to:


 * Microsoft Excel 97 for Windows

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This article was previously published under Q157034





SYMPTOMS
When you type a cell reference to a cell in the Source or Formula box in the Data Validation dialog box, and then click OK, the following message appears:   You may not use references to other worksheets or workbooks for Data Validation criteria.



CAUSE
This behavior occurs when the following conditions are true:


 * You select the cells to which you want to apply Data Validation, and then click Validation on the Data menu.

-and-
 * You click the Settings tab, and then click Settings (or Custom) in the Allow list.

-and-
 * You specify a cell reference to a cell in another worksheet or workbook in the Source (or Formula) box.

The Data Validation command allows you to place restrictions on data that is typed into specific cells. However, the cells that contain the data criteria can refer only to cells within the same worksheet as the cells that are restricted.



WORKAROUND
You can specify a cell that is in an external worksheet as Data Validation criteria if a local cell refers to the criteria cell using one of the two methods below.

Method 1: Using a Local Cell that Refers to the External Cell

 * 1) On the File menu, click New, click Workbook, and then click OK.
 * 2) Select cell A1.
 * 3) On the Data menu, click Validation, and then click the Settings tab.
 * 4) In the Allow list, click Whole Number.
 * 5) In the Data list, click Equal To.
 * 6) In the Value box, type a reference to a cell on the worksheet, for example, type "=$B$1" (without the quotation marks).
 * 7) Click OK.
 * 8) In the cell you referenced in step 6, type a formula that refers to the external criteria cell. For example, in cell B1, type the following formula:

=Sheet2!$C$1
 * 1) In the external cell, type the criteria value you want to use for Data Validation. For example, in cell C1 of Sheet2, type the number 5.

You may now type only the Data Validation criteria (for example 5) in cell A1 of Sheet1.

Method 2: Using INDIRECT to Return a Value in the External Cell

 * 1) On the File menu, click New, click Workbook, and then click OK.
 * 2) Select cell A1.
 * 3) On the Data menu, click Validation, and then click the Settings tab.
 * 4) In the Allow box, click Whole number.
 * 5) In the Data box, click "Equal to."
 * 6) In the Value box, type the following formula

=Indirect("Sheet2!$C$1")

and then click OK.
 * 1) In cell C1 of Sheet2, type the number 10.

You may now type only the Data Validation criteria (for example 10) in cell A1 of Sheet1.



MORE INFORMATION
Microsoft Excel 97 includes a tool that allows you to specify what data is valid for individual cells or cell ranges in a worksheet. This tool is called Data Validation. To access the tool, click Validation on the Data menu.

Restrictions include values, dates, times, or lists of text or values, and can be limited to exact matches or ranges of cells. You can type the validating values in the Data Validation dialog box or you can store them in worksheet cells. These validating cells must be on the same worksheet as the cells being restricted.

