Custom parameter for WebMethod

[Sandeep]

Hi,

I am using RadAutoCompleteBox (Q3 2012 SP2) & Binding it with WebMethod like:

<telerik:RadAutoCompleteBox ID="rdtxt" runat="server" Width="90%" EmptyMessage="enter country to search" InputType="Token" Filter="StartsWith" AllowCustomEntry="true">
<TextSettings SelectionMode="Single" />
<WebServiceSettings Method="GetCountries" Path="frmPage1.aspx" />
</telerik:RadAutoCompleteBox>

It works fine. Fetching countries from server method GetCountries().

Now, I want to fetch State for that selected/entered country.
How to pass that country to WebMethod of GetState(object countryData) ?

Plz reply asap.

[Kalina]

Hello Sandeep,

As far as I understand - you want to pass a parameter to the WebService Method that you use to populate the RadAutoCompleteBox with data.
You can make this by handling the OnClientRequesting event handler and attach the parameter to the RadAutoCompleteContext in this way:

<script type="text/javascript">

          function OnClientRequesting(sender, eventArgs) { debugger;
               var context = eventArgs.get_context();
                  context["Country"] = "UK";
              }

      </script>
      <telerik:RadAutoCompleteBox runat="server" ID="RadAutoCompleteBox1"
          OnClientRequesting="OnClientRequesting">
          <WebServiceSettings Path="LoadEntries.asmx" Method="GetNames" />
      </telerik:RadAutoCompleteBox>

[WebMethod]
public AutoCompleteBoxData GetNames(RadAutoCompleteContext context)
{
    string name = context["Country"].ToString();
    ...
    ...
    ...
    }

Regards,
Kalina
the Telerik team

[Sandeep]

Thanks Kalina,

One more thing, Can I use PageHandlers (.ashx) instead of WebMethod to bind AutoComplete control ?

Like: GenericPageHandler.ashx?src=autoCmplt

& return json object from code.

[Nencho]

Hello Sandeep,

Using a Generic Handlers to bind the RadAutoCompleteBox is not a supported scenario. Therefor, I can suggest you to use the WebMethod, as you intended to do.

Greetings,
Nencho
the Telerik team