(DataList1.Rows[i].Cells[0].FindControl("DropDownList1") as DropDownList).DataSource = ... 其中Cells[0]中的index根据你具体的程序设置相应的单元格序号
DropDownList.DataSource= DataSet1.Tables["Users"].DefaultView;
DropDownList1.DataSours=DataTable1; DropDownList1..DataTextField=""; DropDownList1.DataBind();