Object Data Source question

[IT4EVR]

If I use an ObjectDataSource (ODS) to populate a dropdownlist, is that dropdown being data bound every time the page posts back? If so, is there a way to control that?

I know with the "old way" you could bind the dropdown on if(!PostBack) and the dropdown would only be loaded when the page was initially requested.

From a performance perspective, I've read that ODS aren't as efficient as using a DAL sans ODS because ODS use reflection to parse the command parameters. Have people found this accurate?

I've noticed that after I have made changes to the DAL used by the ODS, sometimes it takes a while for the client application to recognized the new parameters. Is this due to reflection?

 

[SiriusBlackOp]

I know with the "old way" you could bind the dropdown on if(!PostBack) and the dropdown would only be loaded when the page was initially requested."


Yes... this is how you do this, accept it is called IsPostBack.

Senior Software Developer

http://www.scoutsft.com

 

[jbenson001]

What do you mean "old way"? It's the ONLY way to control it.

 

[IT4EVR]

What I meant by the "old way" was the 1.1 data access method, where data source controls didn't exist. Since now 1.1 is considered "old hat" at least by Microsoft, that's why I referred to it as such.

I'm more interested in addressing performance issues related to the ODS and the data source controls, such as FormView, DetailsView etc.