how to stop loading page while selecting the values in DDL

Question

Hi I had two dropdownlists. ddl1ddl2 After selecting the value in the ddl1 data will be loaded in ddl2 data comes from sql database. upto this all are working fine. my requirement is... while selecting the ddl1 page should not get loaded but the values should be fetched in ddl2. Should not use Update pannel. can anyone help me with example coading...

Murali Reddy · Answer

Try dis once.... suppose you have 2 classes one for each drop down list. public class parent { public int Id {get;set;} //pk public string name {get;set;} } public class child { public int Id {get;set;} //pk public string childname {get;set;} public virtual parent par {get;set;} public int parId {get;set;} //fk } public class mainwindow { context db=new context(); var result=from name in db.parentlist select name; ddl1.selectedvaluepath=Id; ddl1.displaymemberpath=Name; ddl1.itemssource=result.tolist(); } private void ddl1_selectedvaluechanged(object sender SelectionChangedEventArgs e) //ddl1 item selected event { var val=ddl1.selectedvalue; context db=new context(); var result=from n in db.childlist where id=val select n; ddl2.itemssource=result.tolist(); }

Kailash Chandra Behera · Answer

you can use ajax upload Panel controls  in background it will reload but seems not post back happened

Venki · Answer

i thinks page loads for this

Venki · Answer

no relationship both are in same page.... just like selecting states after selecting country.

Murali Reddy · Answer

What is the relationship between ddl1 and ddl2???