How to Make a Form that Has a Scroll Bar that Scrolls Records

• Microsoft Visual FoxPro for Windows, version 3.0

SUMMARY

By placing a container in a grid and placing that grid on a form, you can create a form that has a scroll bar that scrolls through the records of a table. The scroll bar on the grid will be used to scroll the records. Also, by setting certain properties of the grid, you can make it appear as though the scroll bar belongs to the form instead of the grid. This article describes the process.

MORE INFORMATION

Step-by-Step Example

This example uses the Testdata database in the Visual FoxPro Samples\Data directory.

1. Type the following command in the Command window to create a container class and modify it in the Visual Class Designer:

   CREATE CLASS cntCustomer AS container OF testdata.vcx

2. In Properties window, set the following properties:

   Height: 250 Width: 375

3. Add four text boxes to the container, and set their properties as indicated:

   Text box:

         Name: txtCustomerID
         ControlSource: customer.cust_id
         Height: 25
         Left: 25
         Top: 25
         Width: 60
   

   Text box:

         Name: txtCompany
         ControlSource: customer.company
         Height: 25
         Left: 25
         Top: 60
         Width: 300
   

   Text box:

         Name: txtAddress
         ControlSource: customer.address
         Height: 25
         Left: 25
         Top: 95
         Width: 300
   

   Text box:

         Name: txtCity
         ControlSource: customer.city
         Height: 25
         Left: 25
         Top: 130
         Width: 150
   

4. On the File menu, click Close, and save the changes.

5. Type the following command in the Command window to open the Testdata database and open a new form in the Form Designer:

   OPEN DATABASE SYS(2004)+'SAMPLES\DATA\TESTDATA' CREATE FORM scrlcust

6. On the View menu, click Data Environment, and then click Add. Select the Customer table, and click OK. Click the Form Designer window to bring it forward again.

7. Click the grid control on the Form Controls toolbar, and then click the form. (If the toolbar is not available, click Form Controls toolbar on the View menu.) Set the following properties for the grid:

   ColumnCount: 1 DeleteMark: .F. - False HeaderHeight: 0 Height: 250 Left: 0 RecordMark: .F. - False RecordSource: customer RowHeight: 250 ScrollBars: 2 - Vertical Top: 0 Width: 375

8. In the Properties window, select Column1 in the Object list. Set the Width property to 355.

9. With the Column1 object still selected in the Properties window, click the View Classes button on the Form Controls toolbar, and then click Add. Open Testdata.vcx created in Step 1. Click the cntcustomer control that now appears on the Form Controls toolbar, and then click the grid on the form.

10. In the Properties window, select Column1, and set the following

        properties:
    

        CurrentControl: Cntcustomer1
        Sparse: .F. - False
    

11. On the File menu, click Save. Then click Run Form on the Form menu. Now

        you can use the scroll bar to scroll through the records in the table.