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Thread Access Violation when applying filter...
Mon, Sep 29 2008 2:40 PMPermanent Link

"John Taylor"
Using DBIsam 3.29, Delphi 5, I'm getting the following madExcept report...

exception message : Access violation at address 004037B7 in module
>> 'sfserver2.exe'. Read of address FFFFFFF1.
>>
>> main thread ($9c8):
>> 004037b7 sfserver2.exe System     1669 Move
>> 0052eb2d sfserver2.exe dbisamen        TDataCursor.GetBookmark
>> 0054f837 sfserver2.exe DBISAMTb        TDBISAMDataSet.GetRecord
>> 004bad5c sfserver2.exe Db         9134 TDataSet.GetNextRecord
>> 004bb1f2 sfserver2.exe Db         9265 TDataSet.GetNextRecords
>> 0054f945 sfserver2.exe DBISAMTb        TDBISAMDataSet.GetNextRecords
>> 004bab2d sfserver2.exe Db         9069 TDataSet.SetBufferCount
>> 004babfe sfserver2.exe Db         9094 TDataSet.UpdateBufferCount
>> 004b9005 sfserver2.exe Db         8262 TDataSet.DoInternalOpen
>> 004b90c2 sfserver2.exe Db         8289 TDataSet.OpenCursor
>> 0054f26b sfserver2.exe DBISAMTb        TDBISAMDataSet.OpenCursor
>> 00552b89 sfserver2.exe DBISAMTb        TDBISAMDBDataSet.OpenCursor
>> 004b8f5d sfserver2.exe Db         8242 TDataSet.SetActive
>> 009d27e6 sfserver2.exe main      25694
>> TFmSFServer2Main.TreeView1ChangeThe relevant section of code in main is:
>> if DoFilterTable then       begin         Table.Active := false;
>> Table.FilterOptions := [];         Table.Active := true;      <----- line
>> causing the AV (25964)         Table.Filtered := false;
>> Table.Filter := Filter;         Table.Filtered := true;
>> Table.First;       end       else       begin         Table.Filter := '';
>> Table.Filtered := false;       end;Does anyone see what I'm doing wrong
>> or what might cause this problem.  I've only seen thisonce among all of
>> our users.Thanks,John Taylor

Tue, Sep 30 2008 12:47 PMPermanent Link

Tim Young [Elevate Software]

Elevate Software, Inc.

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Email timyoung@elevatesoft.com

John,

<< Using DBIsam 3.29, Delphi 5, I'm getting the following madExcept
report... >>

Did you try using 3.30 instead ?

--
Tim Young
Elevate Software
www.elevatesoft.com

Sat, Oct 11 2008 11:25 AMPermanent Link

"John Easley"
Can you post the filter text?  Also, post the field types of fields included
in your filter.

John


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