[Solved] Why would I get "datasource null" here?

[Clay]

Here is the YSOD error I'm getting:

Server Error in '/TLDReporter' Application.

"dataSource" cannot be null.
Parameter name: dataSource

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more 
information about the error and where it originated in the code.

In my ASP.NET MVC app, I'm getting:

Exception Details: System.ArgumentNullException: "dataSource" cannot be null.
Parameter name: dataSource

Source Error:

Line 562: </td>
Line 563: <td class="AddToList AutocompleteArea">
Line 564: @(
Line 565: Html.Telerik().ComboBoxFor(m => m.InputSite)
Line 566: .HighlightFirstMatch(true)

How can the Razor "@(" be a null data source?

[Atanas Korchev]

Hello Clay,

 Could you show us your combobox configuration as well as the full stacktrace?

Greetings,
Atanas Korchev
the Telerik team