Would anyone please help.

I'm getting this fatal error C00000005 (FE C5) at random but repeatedly.The dbf file opened is the same one, with 4 memo fields and 1 gen field and several other char fields, with 30 records.The dbf file has no index file; only several records of the Gen field have data; others, memos included, are all empty.

I created a form with a commandbutton that opens a new file to browse, a
buttongroup that has TOP/Prev/Next/END and some other commandbuttons, a
grid, and a container. Both the grid and container refer to the same opened
table.

When I opens the dbf file and when there comes the FE C5, it is always the line, "thisform.refresh" that is causing trouble: it is the last code line (line
53) in Mytxtbtns1.NavRefresh() of MyVcx.vcx. Mytxtbtns is modelled on the txtbtns in VFP7's Wizbtns. I didn't change much code of it. What follows is from VFP7ERR.Log: Line 53 is the trouble line. All other code line numbers are lines that somehow call NavRefresh().

Fatal error: Exception code=C0000005 @ 12/07/01 06:38:14 PM. Error log file: E:\AppFiles\Microsoft Visual Studio\vfp7\vfp7err.log
Called from - subcb.mytxtbtns1.navrefresh line 53 {c:\documents and settings\administrator\my documents\visual foxpro projects\libs\myvcx.vct c:\documents and settings\administrator\my documents\visual foxpro projects\libs\myvcx.vct}
Called from - subcb.mytxtbtns1.init line 27 {c:\documents and settings\administrator\my documents\visual foxpro projects\libs\myvcx.vct c:\documents and settings\administrator\my documents\visual foxpro projects\libs\myvcx.vct}
Called from - subcb.command1.click line 95 {c:\documents and settings\administrator\my documents\visual foxpro projects\forms\corpus build.sct c:\documents and settings\administrator\my documents\visual foxpro projects\forms\corpus build.sct}

I can't see anything wrong with "Thisform.refresh" in NavRefreh().

Sometimes I got the error when it comes to "thisform.grid1.refresh()" or "thisform.container1.refresh()", either being the last code line in one of the 2 command buttons that activate the grid or the container. What follows is from VFP7ERR.Log:

Fatal error: Exception code=C0000005 @ 12/07/01 10:35:14 PM. Error log file:
E:\AppFiles\Microsoft Visual Studio\vfp7\vfp7err.log
Called from - subcb.command3.click line 13 {c:\documents and
settings\administrator\my documents\visual foxpro projects\forms\corpus
build.sct c:\documents and settings\administrator\my documents\visual foxpro
projects\forms\corpus build.sct}

And here is the Command3.click():
IF !EMPTY(thisform.mytxtbtns1.dbfalias)
SELECT (thisform.mytxtbtns1.dbfalias)
WITH thisform
.grid1.enabled = .f.
.grid1.visible = .f.
.grid1.recordsource = ""
.container2.enabled = .f.
.container2.visible = .f.

.container1.enabled = .t.
.container1.visible = .t.
.container1.Refresh() && line 13, where the Error occurs!
ENDWITH
ENDIF

Again I can't see anything wrong with line 13.

I tried setting the grid and/or the container invisible: only when I click a
button to initialize one of them, is the grid or container set to visible. I packed Myvcx.vcx; I packed the form of subcs; I deleted all blank lines in Myvcx.vcx (as suggested by a VFP programmer); I even zapped the dbf file. Still I get the error, at random.

I can't see anything wrong with "thisform.refresh()" or "thisform.container1.refresh().

Would anyone point a way out for me! Actually I have already been sufferring from this refresh() fatal error since VFP5. I upgraded and rewrote my app, only to find the Error still there with VFP7!

Many thanks in advance.

Chuncan Feng
China