How to Make Combo or List Boxes Hold More than 255 Characters

ID: Q139049

3.00 WINDOWS

  kbhowto

The information in this article applies to:

Microsoft Visual FoxPro for Windows, version 3.0

SUMMARY

When you use a list or combo box that has Value as the RowSourceType, only 255 characters can be typed into the RowSource property. You should use the Value option in the RowSourceType property when you need to place static values in the list or combo box. When you choose the Value option, the values can be typed into the RowSource property separated by commas. Once 255 characters have been typed into the RowSource property, no more characters are allowed, so the computer's bell sounds when you try to add another character. If the list or combo box needs to hold more than 255 characters, create an array to hold the values as demonstrated by the example in this article.

MORE INFORMATION

Step-by-Step Example

1. Create a form in Visual FoxPro.

2. On the Form menu, click New Property. In the Name box, type:

   listarray(5)

3. In the Load event, type:

   THISFORM.LISTARRAY(1)="Choice1"
   THISFORM.LISTARRAY(2)="Choice2"
   THISFORM.LISTARRAY(3)="Choice3"
   THISFORM.LISTARRAY(4)="Choice4"
   THISFORM.LISTARRAY(5)="Choice5"

4. Select a list or combo box from the Controls toolbar, and place it on

   the form.

5. Choose the RowSourceType property of the list or combobox in the

   Properties Sheet, and select the Array option.

6. In the RowSource property, type:

   thisform.listarray

7. In the NumberOfElements property, type:

   =ALEN(thisform.listarray)

8. Run the form, and note that the list or combo box contains the elements

   of the array.

This is a small example demonstrating the kind of elements an array might hold. The only limitation is that the array can hold a maximum of 65000 elements.

Additional reference words: 3.00 VFoxWin

KBCategory:   kbhowto

KBSubcategory: FxtoolFormdes

Keywords          : kbcode FxtoolFormdes 
Version           : 3.00
Platform          : WINDOWS