Sharepoint Designer

Clarifications

I'm not sure you can update one web part based on input in another, let alone how you could accomplish that in Designer. However, I've only played with SharePoint briefly, long enough to figure out that it wasn't what we were looking for.

I'm also not sure there is anybody around here who actually uses SharePoint. You might get a faster response if you asked that question over at the SharePoint Forums.

http://www.sharepointforums.com/

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Hi,
For Sharepoint Designer 2007,creating a dropdown list is abs simple,even if data binding is needed.Place an ASP.NET control onto a page in SharePoint Designer and then use that control as the mechanism for filtering a Data View on the page.This can be used for any Asp.Net control be it a textbox,checkbox,radio button etc.
Now,As Drop Down list is a concern here,
1>Create two lists List A ,List B.
2>Once you insert the Drop down List,click the smart panel that would be your Data Source
3>Your datasource would be for ListA i.e.[SPListDataSourceA]
4>Display would be List A
5>Make sure,its value is also List A.
6>Insert 2nd Asp.Net Drop down List,List B
7>In Smart Panel,select AutoPostBack == True
Very well the list can be dragged within the page to create a Data view Web Part.
8>Now,again in Smart Panel,select Edit Columns,the columns which are necessary for display.
9>Finally ,you can filter the Data View Web Part.
10>It can be filtered as
Field: List name A (or the field that contains your List parameters)
Comparison: Equals
Value: [Create a new Parameter]
Param Name: Param1[random]
Source: Control
Control ID: DropDownListA
Default: [any random value]
After OK.
11>Save the page
12>After the changes,If you feel according to UI for Drop Down List,well can go ahead ,else changes can be made in the filter
I guess,this should work well.
-Archana.