using dropdown list

sophia · October 31st, 2009, 10:22 AM

Hello Sir, thank you for replies on form view. I am working on it.
But I have one another query that I wanna use dropdown list instead of repeater. I have used dropdown list and bound it to the objectdata source like

Code:

<asp:DropDownList ID="lstCategoryId" runat="server" AutoPostBack="True" DataSourceID="ObjectDataSource1"
 DataTextField="Description" DataValueField="Id" AppendDataBoundItems="True">
  <asp:ListItem Value="">Please Choose Category</asp:ListItem>
  </asp:DropDownList>

And I wanna bound it with datalist control, so that whenever I choose any category from dropdown list then only corresponding items of particular items are filled in data list.
Any suggestion is most appreciated......
Or is there any other control where I can use dropdown list with other control providing same functionality as with datalist.
Thank you......

Imar · October 31st, 2009, 10:45 AM

Hi there,

You need to add a ControlParameter that points to the DropDownList in the <SelectParameters> element of the DataSource (like an ObjectDataSource control). This way, the data source can be filtered to only select records belonging to the item selected in the DropDownList.

Imar

sophia · October 31st, 2009, 01:05 PM

while I was waiting for reply I made a google search on the relevant topic, and found a very interesting result on the topic. I think it was worth watching.
And I made one more change in code behind file that was removing of LoadData method .It may help other visitors of the forum.
I think until we have query, we can't move much further that's why I keep asking questions and you of course help us out, so kind of you are.
And no doubt you helped me out and give a heartiest thank to you
Thank you sir.
Yeah still I am struggling with updating items in form view. Please help me in this regard. I find myself helpless in this matter. This seems to be going beyond my limit.

Imar · October 31st, 2009, 01:23 PM

I haven't read it so I don't know if I like it or not.

With regards to the FormView: I am afraid I can't help you much more. You need to study on this yourself using books and on-line resources. People on the Wrox forum can help you if you ask specific questions; they can't teach you how to program.....

Cheers,

Imar

sophia · October 31st, 2009, 02:46 PM

ok, thank you once again. I will try in new direction. Hope this time I'll be completing this. Thank you once again