1、 read an EXCEL sheet into a datatable named dt1
2、add data column named “Key” in dt1 , i want to the “Key” colunmn value to be an sequence value, like 1,2,3,4,…
how can i do that?
thanks
1、 read an EXCEL sheet into a datatable named dt1
2、add data column named “Key” in dt1 , i want to the “Key” colunmn value to be an sequence value, like 1,2,3,4,…
how can i do that?
thanks