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Report From: Delphi-BCB/Midas/TClientDataSet [ Add a report in this area ]

Report #: 3777

Status: Closed

InternalCalc fields are reset to null by ApplyUpdates when using poPropogateChanges

Project: Delphi

Build #: 6.240

Version: 7.0

Submitted By: Dave Rowntree

Report Type: Basic functionality failure

Date Reported: 3/12/2003 3:20:39 AM

Severity: Commonly encountered problem

Last Updated: 10/6/2006 6:50:55 AM

Platform: 95, 98, 2000, NT, XP

Internal Tracking #: 157212

Resolution: Fixed (Resolution Comments)

Resolved in Build: : 7.0.8.1

Duplicate of: None

Voting and Rating

Overall Rating: (2 Total Ratings)

5.00 out of 5

Total Votes: 2

Description

The InternalCalc fields are reset to null by CDS.ApplyUpdates if DSP poPropogateChanges is true and there is a change made to a field in the DSP.BeforeUpdateRecord/DSP.AfterUpdateRecord events.

Having poPropogateChanges = True without actually making a change to a field in BeforeUpdateRecord/AfterUpdateRecord events does not reset the InternalCalc fields.

This problem also occurs in D7.

Steps to Reproduce:

1. Download the test case app from the Attachments tab.

2. Compile and run the test case app.

3. Follow the on screen steps.

Workarounds

None

Attachment

3777.zip

Comments

Dave Rowntree at 3/12/2003 3:26:19 AM -

Would someone confirm that this problem exists in D7 please.

wayne hubbard at 3/12/2003 6:36:33 AM -

sorry, i should have mentioned in our NG thread. I *am* using D7.
it definitely fails there. -pal

Dave Rowntree at 3/12/2003 1:17:21 PM -

wayne hubbard said - "sorry, i should have mentioned in our NG thread. I *am* using D7.
it definitely fails there. -pal"

Thanks.

Chee Yang Chau at 9/13/2003 8:22:34 AM -

I confirmed this bug happen in D7 as well. However, it has another side effect in addition to previous comments. The ChangeCount of the main clientdataset won't reset to 0 after the ApplyUpdates call. The ChangeCount should always reset to 0 if a ApplyUpdates is executed successfully.

Dave Rowntree at 5/11/2004 5:13:08 AM -

Different problem See QC#2333

Dave Rowntree at 5/11/2004 3:28:13 AM -

Fixed in Midas.dll

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