Delphi使用1个保存按钮保存来自不同数据源的所有值

Question

I got this form;

I want to save al of those edits with 1 save button. But the problem is that those fields all have a different datasource. Is there somebody who can help me out?

Answer 1

Simple go over all data sources involved and use DataSource.DataSet.Post (assuming the DataSets are already in dsEdit / dsInsert mode).

Note: If your DBMS supports transactions, it would be wise to group all your posts in a single transaction, so that data/relations integrity will not be compromised eg:

MyConnObj.BeginTrans;
try
  DataSource1.DataSet.Post; 
  DataSource2.DataSet.Post;
  DataSource3.DataSet.Post;
  MyConnObj.CommitTrans;
except
  MyConnObj.RollbackTrans;
  raise;
end;