Dictionary<string,string> values = new Dictionary<string,string>();
        values.Add("key 1","value 1");
        values.Add("key 2","value 2");
        values.Add("key 3","value 3");
 
        RadioButtonList radioButtonList = new RadioButtonList();
        radioButtonList.DataTextField = "Value";
        radioButtonList.DataValueField = "Key";
        radioButtonList.DataSource = values;
        radioButtonList.DataBind();

或者您也可以将项目添加到RadioButtonList Items集合中,如下所示：

radioButtonList.Items.Add(new ListItem("Text 1","Value 1"));
        radioButtonList.Items.Add(new ListItem("Text 2","Value 2"));
        radioButtonList.Items.Add(new ListItem("Text 3","Value 3"));