如何从RadioButtonList获取所选值？

Question

我的页面上有一个RadioButtonList,它通过Data Binding填充

<asp:RadioButtonList ID="rb" runat="server">
</asp:RadioButtonList>
<asp:Button Text="Submit" OnClick="submit" runat="server" />

如何获取用户在"提交"方法中选择的单选按钮的值？

Answer 1

ASPX代码看起来像这样:

 <asp:RadioButtonList ID="rblist1" runat="server">

    <asp:ListItem Text ="Item1" Value="1" />
    <asp:ListItem Text ="Item2" Value="2" />
    <asp:ListItem Text ="Item3" Value="3" />
    <asp:ListItem Text ="Item4" Value="4" />

    </asp:RadioButtonList>

    <asp:Button ID="btn1" runat="server" OnClick="Button1_Click" Text="select value" />

而背后的代码:

protected void Button1_Click(object sender, EventArgs e)
        {
            string selectedValue = rblist1.SelectedValue;
            Response.Write(selectedValue);
        }

Answer 2

使用单选按钮的ID,试试吧rb.SelectedValue.