Linq query on Datatable object

Question

I need to perform following query on a datatable.But it not getting data from the datatable object.It only shows zeros when wrote to an another table.Can Linq querys perform on datatables?

LINQ query:

    object sumObject1;
    object sumObject2;
    sumObject1 = dataTable.AsEnumerable().Where(r => r["Type"]?.ToString() == "Income" && dates.Contains((DateTime)r["Date"]))
    .Sum(rs => (decimal)rs["Amount"]);
    sumObject2 = dataTable.AsEnumerable().Where(r => r["Type"]?.ToString() == "Expense" && dates.Contains((DateTime)r["Date"]))
    .Sum(rs => (decimal)rs["Amount"]);
     

Datatable object as follows:

Datatable

Datatable:

DataTable dt = new DataTable
        {
            Columns = {
                { "Total Incomes",typeof(int) },
                { "Total Expenses",typeof(int) },
                { "Balance",typeof(int) },
                { "Week",typeof(string) }
            },

            TableName = "Reports"
        };

Writing to datatable:

    var row = dt.NewRow();
    row["Week"] = week;
    row["Total Incomes"] = Convert.ToInt32(sumObject1);
    row["Total Expenses"] = Convert.ToInt32(sumObject2);
    row["Balance"]= Convert.ToInt32( balance);
    dt.Rows.Add(row);
    dt.AcceptChanges();