drop down .net c#

Question

I have a drop down that is NOT keeping the value that I select. I already check to True the EnableViewState and nothing yet. What may be missing here? Any advise is appreciated.

Answer 1

Check your Page_Load method. Make sure when you populate it and select the default value it is inside an

if(!IsPostBack) { .. . . }

You could be accidentally setting it on each post back, which is why it seems like it is not retaining its value.

Answer 2

If you're filling it in the Page_Load(), it will get overwritten each time the page loads. If you want the user selection to persist, fill it in the Page_Init(). The viewstate is applied in between the Page_Load and the Page_Init, so this will ensure proper order of execution.

For more info, look up the Page Lifecycle for ASsp.Net.

Answer 3

where are you binding your Dropsown list? Make sure that you do following:

if(!IsPostBack)

{

//Do your data binding here

}