How to use RadioButtonList radio button group control in ASP. NET

2021-07-18 07:49:00
OfStack

The RadioButtonList control represents a list control that encapsulates a set of radio button controls.

You can use two types of ASP. NET controls to add radio buttons to a Web page: individual RadioButton controls or one RadioButtonList control. Both types of controls allow users to choose from 1 group of mutually exclusive predefined options. Using these controls, you can define any number of labeled radio buttons and arrange them horizontally or vertically.

1. Common properties

属性	值	作用
RepeatDirection	Horizontal\|Vertical	项的布局方向：水平方向\|竖直风向
RepeatLayout	Table\|Flow	展现方式：表格\|流线型
Selected	True\|Falsee	是否为选中状态

2. Code demo

Front Desk RadioButtonList. aspx



<%@ Page Language="C#" AutoEventWireup="true" CodeFile="RadioButtonList.aspx.cs" Inherits="WebControls_RadioButtonList" %>

 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

 

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

    <title></title>

</head>

<body>

    <form id="form1" runat="server">

    <div>

        <h3>RadioButtonList (Radio Button Group) </h3>

        <hr />

         Please select gender: <asp:RadioButtonList 

            ID="radlSex" runat="server" RepeatDirection="Horizontal" RepeatLayout="Flow">

            <asp:ListItem Selected="True"> Male </asp:ListItem>

            <asp:ListItem> Female </asp:ListItem>

        </asp:RadioButtonList>

        <br />

        <asp:Button ID="btnSubmit" runat="server" Text=" Submit " onclick="btnSubmit_Click" />

        <hr />

         The gender you chose is: <asp:Label ID="lblState" runat="server"></asp:Label>

       

    </div>

    </form>

</body>

</html>

Background RadioButtonList. aspx. cs



using System;

using System.Collections.Generic;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

 

public partial class WebControls_RadioButtonList : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

 

    }

    protected void btnSubmit_Click(object sender, EventArgs e)

    {

        lblState.Text = radlSex.SelectedValue;

    }

}