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Keep a dataset in dsInsert/dsEdit mode after validation fails

 

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If you want to keep a dataset in dsInsert/dsEdit mode after a validation fails, but do not want to loose your input, use Abort in the BeforePost() event.

(If you would use Dataset.Cancel, you'd loose the input and return to browse mode.)

procedure TForm1.Table1BeforePost(DataSet: TDataSet); 
begin 
  if Table1ID.Value <= 0 then 
  begin 
    // the data is invalid!!
    Showmessage('Error! Invalid value!'); 
    Abort
  end
  else 
    Table1.Post; 
end; 

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