hi there, I really have no idea on this problem on the cascading dropdownlist. I have a cascading dropdownlist that bind with calling the web services.
I wan to do a autopostback to get the value of the Album GUId so that i can query out all the photo list of that album. it is working well if my page without the AlbumGUId query string.
my problem is:
when i redirect from other page and passing the Album GUId querystring to this page, it will display all my photo for this album guid. but when i change the album to Please Select which should be able to display all the Photos, it cannot display out. It only will work is when i choose another album and then go back to PLease Select then it only can work..
anyone have experience on this problem for cascding dropdownlist? plz give some idea on it. Thanx in advance
<asp:DropDownList ID="ddlPhotoAlbum" runat="server" Width="200px" AutoPostBack="true" />
<ajax:CascadingDropDown ID="ccdPhotoAlbum" runat="server" TargetControlID="ddlPhotoAlbum" Category="PhotoAlbumGUID" PromptText="Please select" LoadingText="[Loading...]" ServicePath="~/App_Ws/LookUpWS.asmx" ServiceMethod="GetPhotoAlbum" ContextKey='' UseContextKey="true" />
View Complete Post