Hi,

I'm using cascading drop down lists rigged up to web service. They are part of a form and the user can choose to cancel adding or updating the record in the database.

I want to reset the drop down lists to their original prompt text. For example "<select an institution>"

I have tried to set the selected index, also ddl.items(0).selected = true and re-binded the data before the call to no avail.

 I have also tried the following:

ddlInstList.DataBind()
ddlInstList.ClearSelection()
For Each LI As ListItem In ddlInstList.Items
      If LI.Value = "99999" Then
                 LI.Selected = True
      End If
Next

And also, here is the ccddl code

<cc1:CascadingDropDown ID="ccddl1" runat="server"

ServiceMethod="GetInstitutions"

TargetControlID="ddlInstList"

Category="Institutions"

PromptText="< select institution >"

LoadingText="Please wait..."

PromptValue="99999" >

Any suggestions apprieciated? 

Hi Legz11,

When we want to set the selected item on server side, please set the DropDownList and CascadingDropDown's SelectedValue property.  Also, we can reset the DropDownList's selectedIndex on client by using Javascript.  For example,$get("<%=DropDownList's ClientID%>").selectedIndex = value;  It should be executed on client.

Best regards,

Joanthan

Thanks Jonathan I will give that a go and respond.

Any luck with this?

Hi Jonathan,

Sorry to resurrect such an ancient thread, but I'm trying to do something similar, (ie reset the ccd from the client side), but can't make your solution work. 

I add this code snippet:

$get("<%=BusinessUnitDropDownList%>").selectedIndex = 0;

However this gives me a runtime error:

The Controls collection cannot be modified because the control contains code blocks (i.e. <%...%>).

Do you know what's causing this error?

Thanks,

Paul

Answering my own thread:

It seems, for reasons that passeth all understanding, that if you move the javascript from the head to the body, the problem goes away!