How to Determine Which Key the User Pressed in a Grid

• Microsoft Visual FoxPro for Windows, version 3.0

SUMMARY

This article shows by example how to determine if the user pressed the UP ARROW key while the pointer was on the first record of the grid or pressed the DOWN ARROW key while the pointer was on the last record of the grid.

MORE INFORMATION

Step-by-Step Example

1. Open a table, and create a new form.

2. Create a new form property called FirstRecord.

3. Add a grid to the form.

4. In the grid's Init event, add this line of code:

   THISFORM.FirstRecord = RECNO()

5. In the grid's AfterRowColChange event, add this code:

   Do CASE

         CASE LASTKEY() = 5 AND THISFORM.FirstRecord = RECNO()
            =MESSAGEBOX("You're on the first record of the grid")
         CASE LASTKEY() = 24 AND THIS.ActiveRow = RECCOUNT()
            =MESSAGEBOX("You're on the last row of the grid")
         ENDCASE
   
   

6. Save and run form.