Adding additional data on ajax grid post not using js function name string

[Dan]

I have a grid which is using ajax to retrieve data using the "read" method. This requires additional data to be posted to the controller. This works good using a javascript function to send the additional data. And their are many examples of this being done. But due to requirements I would like to create the actual javascript function inside the "Data" call instead of specifying the string for the javascript function name. Based on the intellisense I think this is possible but not sure of the syntax. 

So the example below shows what works (Read #1) and what I want to do instead (Read #2).

 @(Html.Kendo().Grid<Tabs.Viewer.UI.WebViewer.Models.MyModel>()
 .Name("Grid")
 .Columns(columns => {       
                                   columns.Bound(p => p.Email).Title("column1");
                                   columns.Bound(p => p.Description).Title("column2");
.DataSource(dataSource => dataSource 
                                         .Ajax()
                                         .Model(model => model.Id(p => p.myId))
  // Read #1 This works fine but do not want to specify the method name
                                         .Read(read => read.Action("PopulateAlertGrid", "ProductAlert").Data("onAdditionalProductAlertGridData"))
 // Read #2 Note: I want to add the actual js code instead of the above line.
                                         .Read(read => read.Action("PopulateAlertGrid", "ProductAlert").Data(function myMethod(){...})
))

So can someone share the syntax to put the js code in the data call or if this is possible?

Thanks, Dan