Dynamic TppFields

rbuser

Hello,

I create TppFields dynamicly :

procedure CreateJitFields ;
var
NewField : TppField ;
begin
for k:=1 to myGrid.Columns do begin
NewField := TppField.Create(self) ;
NewField.Fieldname := myGrid.ColumnTitle[k] ;
myJITPipeline.AddField(NewField) ;
end;
end;

This works fine, but I get an AccessViolation when closing my App.
I tried several Owners (nil, self, myJITPipeline)...

What do I do wrong,

kind regards,

Dirk Janssens.

nardmoseley

1. There is a DataPipeline.DefineFields method that you can call to create
fields dynamically.

function DataPipeline.DefineField(aFieldName: String; aDataType:
TppDataType; aFieldLength: Integer): Integer;

example:

ppJITPipeline1.DefineField('Company', dtString, 30);


2. To make your existing example code work properly. Replace

myDataPipeline.AddField(myField);

with

myField.DataPipeline := myDataPipeline;




--
Nard Moseley
Digital Metaphors Corporation
www.digital-metaphors.com