Child/Detail grid column aggregate SUM coming as 0

[Chandan]

Hi Team,

I want to show the sum of a decimal data type column at the bottom of child grid column in kendo ui mvc 4?
I am using below approach but always getting the sum as 0. Please guide on this.

.Columns(columns =>

   {

      //..

       columns.Bound(p => p.amount)

           .HeaderTemplate("Amount")

           .ClientFooterTemplate("Sum: \\#=sum\\# ");

      //..

   })

.DataSource(dataSource => dataSource

            .Ajax()

            .Aggregates(aggregates => {

                aggregates.Add(p => p.amount).Sum();

            })

            .Read(read => read.Action("Invoice_Read", "ProjectsInvoice", new { projectCode = "#=projectCode#" }))

        

             

        )