Question : AJAX Cascading Dropdown Code and Source Data

I have been looking for a small snippet that demonstrates the usage of the cascading extender and so far all the examples I have found require a web service as part of their solutions.  Is a web service required to wire the dropdowns together?

Answer : AJAX Cascading Dropdown Code and Source Data

Hi,

No, no extender. See attached code sample.

/Carl.
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ASPX:
 
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="DropDownTestPage.aspx.vb" Inherits="DropDownTestPage" %>
 

 


    Wired DropDowns


    
        
        
        
            
                
                
                
                


                
                
                
                
                
                
                
                    
                        
                    
                
            
        
    


 
CODE-BEHIND:
 
 
Partial Class DropDownTestPage
    Inherits System.Web.UI.Page
 
    Protected Sub ddlMake_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ddlMake.SelectedIndexChanged
        If Not ddlModel.Visible Then
            ddlModel.Visible = True
        End If
    End Sub
 
End Class
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