获得一个DataTable中的奇数行和偶数行

DataTable dt = GetData();
int count = dt.Rows.Count;
DataTable dt_jishu = new DataTable();
DataTable dt_oushu = new DataTable();
dt_jishu = dt.Copy();
dt_oushu = dt.Copy();

for(int i = 1; i <= count/2; i++)
dt_jishu.Rows.RemoveAt(i);
for(int i= 0 ;i <= count/2-1; i++)
dt_oushu.Rows.RemoveAt(i);

this.dl1.DataSource = dt_jishu;
this.dl1.DataBind();
this.dl2.DataSource = d;
this.dl2.DataBind();

<%#((System.Web.UI.WebControls.DataListItem)Container).ItemIndex*2+1%>
<%#((System.Web.UI.WebControls.DataListItem)Container).ItemIndex*2+2%>