RadioButtonList1

怎样判断RadioButtonList中的项是否选中 --------------------编程问答-------------------- 通过FindControl(单选按钮ID),找到控件后，判断checked属性 --------------------编程问答-------------------- this.RadioButton1.Checked = true  选中 --------------------编程问答--------------------         for (int i = 0; i < RadioButtonList1.Items.Count; i++)
            if (RadioButtonList1.Items[i].Selected)
                Response.Write("你选中了第" + (i+1).ToString() + "项"); --------------------编程问答-------------------- 用for循环，代码如下：

for (int i = 0; i < RadioButtonList1.Items.Count; i++) 

{

   if (RadioButtonList1.Items[i].Selected) 

   {

      Response.Write("你选中了第" + (i+1).ToString() + "项");

   }

}

--------------------编程问答--------------------

 if (RadioButtonList1.SelectedIndex != -1)

        {

            Response.Write(RadioButtonList1.SelectedItem.Text);

        }

        else

        {

            Response.Write("请选择");

        }

--------------------编程问答--------------------

 if (RadioButtonList1.SelectedIndex != -1)

        {

            Response.Write(RadioButtonList1.SelectedItem.Text);

        }

        else

        {

            Response.Write("请选择");

        }

补充：.NET技术 ,  ASP.NET