Hello everyone,
I often have this problem, but now I think, I have a concrete situation 
to comment...
I was testing on a dbf table in 2 applications running at the same time
The 1st application shows this table using tbrowse().
In the 2nd application I am adding a record, first move the pointer to 
get the last key and then run the dbAppend(), and at this point the 1st 
application executes the command ::ForceStable() of tBrowse(), and that 
is where it gives me The Error: Error While Reading a File

Could you tell me why this error occurs and if there is a way to prevent it?

The only modification I make in the dbesys is
Dbeinfo (COMPONENT_DATA, DBFDBE_LOCKMODE, DBF_NOLOCK)

And working with DBFCDX


best regards, Jorge

Can't run two program on same data without proper locking procedures

Jim

On 06/29/2017 10:38 PM, Jorge Luis Borlando wrote:
> Hello everyone,
> I often have this problem, but now I think, I have a concrete situation 
> to comment...
> I was testing on a dbf table in 2 applications running at the same time
> The 1st application shows this table using tbrowse().
> In the 2nd application I am adding a record, first move the pointer to 
> get the last key and then run the dbAppend(), and at this point the 1st 
> application executes the command ::ForceStable() of tBrowse(), and that 
> is where it gives me The Error: Error While Reading a File
> 
> Could you tell me why this error occurs and if there is a way to prevent 
> it?
> 
> The only modification I make in the dbesys is
> Dbeinfo (COMPONENT_DATA, DBFDBE_LOCKMODE, DBF_NOLOCK)
> 
> And working with DBFCDX
> 
> 
> best regards, Jorge

Jim, thanks for your advice, but I doubt generated more
The first application is to display the table, and it is the one that 
generates the error, you could orient me to do when the ::ForceStable() 
command is executed, to prevent the "read error"

El 30/6/2017 a las 9:40 a. m., James Loughner escribió:
> Can't run two program on same data without proper locking procedures
> 
> Jim
> 
> On 06/29/2017 10:38 PM, Jorge Luis Borlando wrote:
>> Hello everyone,
>> I often have this problem, but now I think, I have a concrete 
>> situation to comment...
>> I was testing on a dbf table in 2 applications running at the same time
>> The 1st application shows this table using tbrowse().
>> In the 2nd application I am adding a record, first move the pointer to 
>> get the last key and then run the dbAppend(), and at this point the 
>> 1st application executes the command ::ForceStable() of tBrowse(), and 
>> that is where it gives me The Error: Error While Reading a File
>>
>> Could you tell me why this error occurs and if there is a way to 
>> prevent it?
>>
>> The only modification I make in the dbesys is
>> Dbeinfo (COMPONENT_DATA, DBFDBE_LOCKMODE, DBF_NOLOCK)
>>
>> And working with DBFCDX
>>
>>
>> best regards, Jorge
>