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Whats the difference?

Posted on 1998-08-05
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Last Modified: 2010-04-04
Why can I modify data in an Empress database table with data aware controls i.e. DBEdit, DBMemo, but I cannot do it with code i.e. Table1.FieldByName('description').AsString := Edit1.Text;
The table is open with ReadOnly set to false.
the same thing happens with queries even when RequestLive is set to true.
I do not have this problem with Access tables.
Is there anyone else out there using Delphi 3.0 and Empress ?
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Question by:nhoj
5 Comments
 
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Expert Comment

by:inter
ID: 1359767
Hi, May be it is silly to ask but did you do
Table1.Edit;
..// Do your modifications
Table1.Post;

Igor
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Expert Comment

by:ZifNab
ID: 1359768
Sorry, don't know anything of Empress... You do use Edit/post, don't you? But since you don't have problems with Access, I guess you do.
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Author Comment

by:nhoj
ID: 1359769
From nohj
Thanks chaps that sorted the problem, but I still have never had to do this with Access. Empress is a Canadian RDBMS for UNIX, very powerful, checkout www.empress.com
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Expert Comment

by:Greedy
ID: 1359770
The DataSet must be in edit or insert mode to change a value.  You can use this code to check the status
if MyDataSource.State in [dsEdit, dsInsert] then
  UpDateTheFieldValues;

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Accepted Solution

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rwilson032697 earned 200 total points
ID: 1359771
The table must be in edit mode (use Table1.Edit; ) and you need to post the changes (use Table1.Post).

You can check if the table is in edit mode by checking the options in the State property (eg: dsEdit and dsIsert).

There is no difference between (as far as BDE is concerned) having data aware controls modify the data and doing it directly through the code.
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