c# - How to maintain Start and End index of DataTable -

i have datatable contains 13 rows. want create batch of 5 rows start , end index

i want create array or hashtable store start , end index

decimal remainder = decimal.divide(dsresult.tables[0].rows.count, 5); var numberofrequests = math.ceiling((decimal)remainder); 

above code give me out put 3 13 records means 5+5+3

so expected array or hashtable below

0  0   4 1  5   9 3 10  12 

first column incremental value, second column datatable row start index third column datatable row end index

please suggest me how implement this.

try this

            datatable dt = new datatable();             dt.columns.add("index", typeof(int));             dt.rows.add(new object[]{1});             dt.rows.add(new object[]{2});             dt.rows.add(new object[]{3});             dt.rows.add(new object[]{4});             dt.rows.add(new object[]{5});             dt.rows.add(new object[]{6});             dt.rows.add(new object[]{7});             dt.rows.add(new object[]{8});             dt.rows.add(new object[]{9});             dt.rows.add(new object[]{10});             dt.rows.add(new object[]{11});             dt.rows.add(new object[]{12});             dt.rows.add(new object[]{13});             dt.rows.add(new object[]{14});             dt.rows.add(new object[]{15});             dt.rows.add(new object[]{16});               var results = dt.asenumerable()                 .select((x,i) => new {index = i, row = x})                 .groupby(y => (int)(y.index/5))                 .select(z => z.select(a => a.row).tolist()).tolist();