Channel 9 - Discussions by Taskerr

Site Feedback - USB Pen Drive Activity Light Does not Go Out?

Taskerr — Sat, 03 Jul 2010 15:48:28 GMT

I have noticed that under Win2k when I close down the USB connection prior to pen removal its activity light goes out. This does not happen under XP or Vista; if this is by design it was better under win2k so can we have it back the way it was?

Tech Off - Error 3188, Memo Fields and Locked Records

Taskerr — Tue, 30 Jan 2007 13:06:51 GMT

A database has row level locking set under options.

A form's recordsource fills unbound textboxes from the OnCurrent event. Records are edited using the edit and update methods.

Some of the textboxes are associated with memo fields. A query recordset is used to fetch the same data row as the the one the form is sat upon. The form and recordset rows are now the same.

If a forms memo field is filled with 4k's worth of characters and assigned to the recordset, error 3188 'Could not update, currently locked by another session on this machine' occurs.

Research indicates that this begins to happen when the memo field data gets bigger than 2k with anything less working just fine.

With rstT1
.Edit
.
rstT1(pcsTFLD_04_SYIN).Value = Me(pctlSYIN).Value ' memo field
.
.UpDate
End With

I'm confused! Could someone from Microsoft explain the relationship between the max record size of 4k and how memo fields impact upon this . My perception is that it should be minimal as the record should contain just a pointer to the memo data. In theory the conflict should not happen?

Tech Off - Access - Changing the Current Session Workgroup File?

Taskerr — Mon, 29 Jan 2007 20:51:09 GMT

Documentation states the currently open database session mdw cannot be reassigned because DBEngine.SystemDB is read only.

You can however reassign the mdw for another database which seems at odds with this. Is the latter really impossible?

Paraphrasing some code:

MyOldMDW = DBEngine.SystemDB
DBEngine.SystemDB = c:\myfolder\mynew.mdw
wsp = DBEngine.CreateWorkspace("x", "U1","Psw")
dbs = wsp.OpenDatabase(CurrentDB.Name, false,false)
.
. Do something
.
dbs.close
wsp.close
DBEngine.SystemDB = MyOldMDW

The 'wsp =' line, errors, as user not found. This is because U1 is not a user in the old mdw but is a user in the new one and the mdw never got reassigned.

The line DBEngine.SystemDB = c:\myfolder\mynew.mdw does not error because Access has no way of knowing what you are going to do next.

Tech Off - Access Feature Comparison Across Versions

Taskerr — Wed, 17 Jan 2007 19:47:41 GMT

Has anybody or does anybody know of a features comparison tabulation or maybe a short history of product enhancements that have taken place? What got added and what got left out. I get asked this question quite a lot but struggle with the answers because there have been so many.

Tech Off - Access 2003 - Replication Data Changes

Taskerr — Thu, 14 Apr 2005 18:57:04 GMT

As a rule of thumb When designing a Replication database system I try to keep table data changes to a minimum. This has meant only updating changed rows, adding new rows or removing deleted ones. All of this in the design master/replication master.

Will column changes as opposed to row changes allow me to abandon my rule of thumb and use an update query to overwrite all rows, mostly with the same data and will the replication process know that the overwritten data has remained the same or will it cause it to be logged as changed thereby increasing the size of the MDB.

Coffeehouse - How would you like to celebrate C9's 1 Year B-day?

Taskerr — Wed, 16 Feb 2005 09:44:42 GMT

With the word 'Visual' everywhere and given that C9 has taken to making mini-movies...

How about an 'Oscar' party; sit down buffet, glad rags and all free in the favourite on-campus restaurant. Book it all to customer Good-Will. He may even turn up.

Put up a voting list under the differing categories and get a Celeb to give out the prizes - recorded by the C9 camera team of course.

Tech Off - How do you create an XP zipped file/folder in vb code

Taskerr — Fri, 26 Nov 2004 12:34:17 GMT

Tried that. No Luck!

I guess the dll is hard wired to the system32 dir.

Is there a sensible reason why a zip class is not available as part of the OS other than MS never got round to doing it?

The need for this comes from unattended automatic emailing with very large attachements resulting from data extraction on a daily basis.

Server storage is caned by this sort of thing.

If the OS people cannot do this how about the Outlook team building this into MAPI?

Tech Off - How do you create an XP zipped file/folder in vb code

Taskerr — Thu, 25 Nov 2004 21:16:34 GMT

Thanks for that! However I should have made my self clearer.

I have already done something similar using Info-Zip's zip32.dll at

http://www.info-zip.org/pub/infozip/

With alittle help from the Contribution to the Info-Zip project by Mike Le Voi

http://modemss.brisnet.org.au/~mlevoi

It works very well, but you have to save the dll to the system32 dir something I'm not comfortable with.

I was hoping that there might be an XP class that I could use in a similar way to zip32.dll.

I'm sure there must be one, only I cannot find references to it. Maybe the guys at MSDN can help?

Tech Off - How do you create an XP zipped file/folder in vb code

Taskerr — Thu, 25 Nov 2004 21:15:01 GMT

Ok! But I'm sure the documentation refers to it as a folder. The icon is a folder with a zip on it.

Tech Off - How do you create an XP zipped file/folder in vb code

Taskerr — Wed, 24 Nov 2004 19:45:35 GMT

Any ideas?

Tech Off - New Access 2000 Project to SQL Express Beta 2

Taskerr — Thu, 11 Nov 2004 16:53:51 GMT

I don't know if this is possible but has anybody been able to create a new adp using the connect wizard?