Microsoft KB Archive/161534

= XL97: How to Fill ListBox Control with Multiple Ranges =

Article ID: 161534

Article Last Modified on 11/23/2006

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APPLIES TO


 * Microsoft Excel 97 Standard Edition

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This article was previously published under Q161534





SUMMARY
This article contains an example that fills the list of a ListBox control on a UserForm with data from multiple cell ranges.



MORE INFORMATION
You cannot use the RowSource property to bind a ListBox control to a worksheet when you want the list to draw from multiple ranges. You must loop through the various ranges with a Visual Basic for Applications procedure and add the items to the list one at a time.

The following examples populate a ListBox control as it is loaded by using the Initialize event for the UserForm.

Microsoft provides programming examples for illustration only, without warranty either expressed or implied, including, but not limited to, the implied warranties of merchantability and/or fitness for a particular purpose. This article assumes that you are familiar with the programming language being demonstrated and the tools used to create and debug procedures. Microsoft support professionals can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific needs. If you have limited programming experience, you may want to contact a Microsoft Certified Partner or the Microsoft fee-based consulting line at (800) 936-5200. For more information about Microsoft Certified Partners, please visit the following Microsoft Web site:

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Populating the ListBox Directly from Worksheet Cells
To populate the ListBox, follow these steps:  Close and save any open workbooks and then create a new workbook.  On Sheet1, enter the following values:      A1: Planes        C1: Alpha A2: Trains       C2: Bravo A3: Automobiles  C3: Charlie  Start the Visual Basic Editor (press ALT+F11). On the Insert menu, click UserForm. Draw a ListBox control on the UserForm. Double-click the UserForm to open the Code window for the UserForm.</li>  In the module type the following code for the UserForm Initialize event: Private Sub UserForm_Intialize Dim Lrange As Range Dim x As Variant

'Set the range to loop through Set Lrange = Union(Sheet1.Range("A1:A3"), Sheet1.Range("C1:C3"))

'Loops through the ranges For Each x In Lrange

'Adds an item to the list Listbox1.AddItem x.Value

Next x

End Sub </li> Run the UserForm.

The items in the ranges A1:A3 and C1:C3 on Sheet1 are added to the list in ListBox1.</li> Close the UserForm.</li></ol>

Using an Array to Populate the ListBox
It is also possible to assign the contents of a Visual Basic array as the list of a ListBox control. The following example reads the values from the worksheet into an array, and then assigns the array to the ListBox control as the list: <ol>  In the module, change the code for the UserForm Initialize event: Private Sub UserForm_Initialize Dim Lrange As Range Dim Larray As Variant Dim x As Variant Dim ctr As Integer

'Set the range to loop through Set Lrange = Union(Sheet1.Range("A1:A3"), Sheet1.Range("C1:C3"))

'Loops through the ranges For Each x In Lrange

ReDim Preserve Larray(ctr)

'Add an item to the array Larray(ctr) = x.Value

ctr = ctr + 1

Next x

'Assign the array to the listbox ListBox1.List = LArray

End Sub </li> Run the UserForm.

The items in the ranges A1:A3 and C1:C3 on Sheet1 are read into an array and are then assigned to the list of ListBox1.</li> Close the UserForm.</li></ol>

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