ado.net

Question

wat is the main diffrences b/w typed dataset and untyped dataset. which one is do the better performance. how to datagrid manipulations in asp.net(using property builder(like drag buttons like edit,delete,add) ok

Answer 1

The main difference is the typed dataset has defined schema up front. A non typed dataset will infer from the data object that created it. The main reason I used typed datatsets is if I am trying to populate a data grid (either aspx or desktop app) and i'm not guaranteed to have data returned or I want to have default data. The datagrids will be expecting certain fields. If you have an untyped dataset that was populated from a query that did not return any values you may not get any schema information back. This can cause the datagrid binding to fail because it cannot find the table/fields to bind to. I have used both of them and I have not noticed any performance differences. Geo http://www.EZDevComponents.com