FIX: Forms Under Source Control Open Slowly

• Microsoft Visual SourceSafe, 32-bit, for Windows, versions 4.0a, 5.0
• Microsoft Visual FoxPro for Windows, version 5.0

SYMPTOMS

When you modify files in a Visual FoxPro project under Source Code Control, it takes 4 to 5 times longer than if the project is not under Source Code Control.

CAUSE

Instead of updating individual files when individual objects are being modified, the entire project is updated by default in Source Code Control.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This bug has been corrected in Microsoft Visual FoxPro version 5.0a for Windows.

MORE INFORMATION

Steps to Reproduce Problem

1. Run Visual FoxPro v5.0 and create a Visual FoxPro program file, MakMor.prg, with the following code:

         **** Create sample programs ****
         FOR i= 1 TO 200
            lcname1="main" + maknum(i) + ".prg"
            COPY FILE main000.prg TO &lcname1
         ENDFOR
   
         **** Create sample forms ****
         FOR i= 1 TO 200
            lcname1="main" + maknum(i) + ".scx"
            lcname2="main" + maknum(i) + ".sct"
            COPY FILE main000.scx TO &lcname1
            COPY FILE main000.sct TO &lcname2
         ENDFOR
   
         PROCEDURE maknum
         PARAMETERS tnWhich
         RETURN PADL(ALLTRIM(STR(m.tnWhich)),3,"0")
   
   

2. Save the program file created in the previous step into a directory by itself, for example "..\BigProj\". This program will create 200 program files and forms that will be used to reproduce the behavior.

3. Create a Visual FoxPro program file, MAIN000.prg, with the following code:

         &&***Top of MAIN000.PRG****
         RETURN
         DO MYINIT
         DO MYSAVE
         DO FORM main
         READ EVENTS
   

         PROCEDURE myinit
   

            LOCAL x00,x01,x02,x03,x04,x05,x06,x07,x08,x09
            LOCAL x10,x11,x12,x13,x14,x15,x16,x17,x18,x19
   
            STORE 9 TO x00,x01,x02,x03,x04,x05,x06,x07,x08,x09
            STORE 9 TO x10,x11,x12,x13,x14,x15,x16,x17,x18,x19
   
         RETURN
   
         PROCEDURE mysave
   
            LOCAL x00,x01,x02,x03,x04,x05,x06,x07,x08,x09
            LOCAL x10,x11,x12,x13,x14,x15,x16,x17,x18,x19
            LOCAL x20,x21,x22,x23,x24,x25,x26,x27,x28,x29
   
            STORE 9 TO x00,x01,x02,x03,x04,x05,x06,x07,x08,x09
            STORE 9 TO x10,x11,x12,x13,x14,x15,x16,x17,x18,x19
            STORE 9 TO x20,x21,x22,x23,x24,x25,x26,x27,x28,x29
   
         RETURN
         &&***End of MAIN000.PRG****
   
      Save the program into the same directory (..\BigProj) as the program
      file created in step 1. This is a sample program whose contents will be
      copied into all the sample program files created by MakMor.prg.
   
   

4. Create a Visual FoxPro form, MAIN000.SCX, and place a control on the form. Save the form to the same directory (..\BigProj) as the previous step. The contents of this form will be copied to all the sample forms created by MakMor.prg.

5. Create another Visual FoxPro program, MNDAT.PRG, with the following code:

         IF !file("main.prg")
            FHAND=fcreate("main.prg")
            FCLOSE(fhand)
         ENDIF
         fhand = FOPEN("main.prg",11)
         ?"fhand = ",fhand
         IF FHAND >= 0
            FOR i=1 TO 200
               fnum=PADL(ALLTRIM(STR(i)),3,"0")
               FPUTS(fhand, "Do Main"+(fnum))
               ** Uncomment the following if forms added to the project **
               fputs(fhand, "Do Form Main"+(fnum))
            ENDFOR
         ENDIF
         FCLOSE(fhand)
   
      Save the program to the same directory (..\BigProj) as the previous
      step. This program creates MAIN.PRG that contains references to all the
      forms and programs created by MakMor.prg.
   
   

6. From Visual FoxPro issue the following commands:

         SET DEFAULT TO <..\BigProj>  ** Set default to where all files saved
         DO MakMor.prg     **Make sample programs and files
         DO MNDAT.prg      **Create Main.prg with references to files
   
   

7. Create a Project, BigProj.PJX, in the directory (..\BigProj) where all the files have been saved so far.

8. Add MAIN.PRG to the project and re-build the project to add all the files referenced by MAIN.PRG.

9. Modify any of the files (Programs or Forms) from within the Project Manager and note that the modify window opens up instantly.

10. Close all files and add the project to source control.

11. Repeat step 9 and note that the modify window takes much longer to come up.

NOTE: In Visual FoxPro v5.0a step 11 will be almost as fast as step 9.

Keywords          : VFoxWin
Version           : WINDOWS:4.0a,5.0
Platform          : WINDOWS
Issue type        : kbbug
Solution Type     : kbfix