Thanks for looking into this, Bernard.

Please find attached a sample project that replicates the issue on my end.

The backend database is SQL Server 2008R2 and I'm connecting to it using Windows Integrated Security.  In order to create a similar environment, you'll need to install the Northwind sample data, which is available from Microsoft at

http://msdn.microsoft.com/en-us/library/ms143221%28v=sql.105%29.aspx

Once the Northwind DB is attached, run the 4 SQL scripts included in the attached sample to create the spOrderDelete, spOrderInsert, spOrderSelect and spOrderUpdate stored procedures in the Northwind database.  These are just quick-and-dirty procs for the purpose of illustrating the problem, not something that's designed to be production ready.

Then run the enclosed ASP.NET app.  I've configured the WebGrid to allow no edits to any column except the EmployeeID column, which is bound to the single WebInput control on the form.

Navigate to or click on the EmployeeID column and try to edit it.  Note the result, which is the same javascript error that I posted the screenshot of in the original post.

I'm using Visual Studio 2010 SP1, WebGrid Enterprise 7.0 and WebInput 4.0.

If you need more detailed version information, please ask.