DataGrid sum column

I have a datagrid and i want to sum an entire column and display the result in a textbox or something similar, can someone please help with this.


Example of Sum() expression can be found here:

I was able to make it work using the function orders.Sum(o => o.Freight..but only for the page im in..can you please tell me how to apply it for the entirety of the column despite number of pages.

thank you

Please someone??? i really need this to be working

Our demo shows the total of all pages.

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