我如何能够在单选按钮列表的DataTextField中给出两个字符串？

Question

Here "name" and "specification" are fields of my tables and i want to display both that fields in the DataTextField . I tried upper code:

RadioButtonList1.DataSource = dt;
RadioButtonList1.DataTextField = "name";
RadioButtonList1.DataTextField = "specification";
RadioButtonList1.DataBind(); 

but it was not working.

Answer 1

RadioButtonList1.Items.Clear();

foreach(var row in dt.Rows)
{
    var txt = row["name"].ToString() + " " + row["specification"].ToString();
    var val = row["id"].ToString();
    var item = new ListItem(txt,val);
    RadioButtonList1.Items.Add(item);
}

Answer 2

You will either need to populate the field on the item databound event or create a new combined column from dt;

var newDT = (from r in dt
             select new 
             {
                 ID = r.ID,
                 NameAndSpec = r.name + ", " + r.specification
             }
             );