Cascading DropDownList Controls
Posted on 2011-09-28
I have a web application that will be for enrollment for a college. Please see the Steps below in the order that I need the values to appear in the multiple DropDownList Controls.
STEP 1: Select State:
STEP 2: Select City
STEP 3: Select County
STEP 4: Select ZIP
So all controls will need to interact with each other starting from the DropDownList Control in STEP 1 to STEP 4.
I would prefer to NOT have the page PostBack for every DropDownList Selected. I would prefer to use AJAX for ASP.NET if possible.
Also, all the values for each STEP will be in the Database and will need to be ALL related to each other some how and will need to be pulled from the Database. I also plan on using a DataSet with multipe DataTables or one DataTable. What do you prefer I use for storing/retrieving the data??
Thanks in advance!!!