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Bug 185 - [TV52014739] When you export a chart that is connected to a datasource to a tee fi...
Summary: [TV52014739] When you export a chart that is connected to a datasource to a t...
Status: RESOLVED WONTFIX
Alias: None
Product: VCL TeeChart
Classification: Unclassified
Component: Export (show other bugs)
Version: unspecified
Hardware: All All
: Normal major
Target Milestone: ---
Assignee: Steema Issue Manager
URL: http://www.teechart.net/support/viewt...
Keywords:
Depends on:
Blocks:
 
Reported: 2010-03-19 12:05 EDT by yeray alonso
Modified: 2021-02-15 08:32 EST (History)
1 user (show)

See Also:
Chart Series: ---
Delphi / C++ Builder RAD IDE Version:

Attachments
Simple example to reproduce the problem (3.24 KB, application/octet-stream)
2014-04-10 07:25 EDT, yeray alonso 		Details
View All Add an attachment (proposed patch, testcase, etc.)

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Comment 1 yeray alonso 2014-04-09 06:32:04 EDT 
Made the firs comment private to hide user info. Here the information relevant to the issue:

When you export a chart that is connected to a datasource to a tee file, the data can be exported or not, but the connection info is lost. There is a customer who would like to save that info to load a chart connected to the database when imported from a tee file.

Also, another customer just asked for the same here:
http://www.teechart.net/support/viewtopic.php?f=3&t=14842
Comment 2 yeray alonso 2014-04-10 07:25:51 EDT 
Created attachment 165 [details]
Simple example to reproduce the problem
Comment 3 yeray alonso 2021-02-15 08:32:44 EST 
There's no generic way to automatically save and load a DataSource assigned to a Chart because they are objects living out of the Chart and we have no control over them.

The alternatives are (1) to reload the DataSource manually after loading the chart (which has to be done by the developer since we can't control all the possible DataSources), or (2) to save and load all the TForm with the standard TReader/TWriter.

I'm closing this since there's nothing we can do here.