ASP.NET C#结合，做了两个单选按钮RadioButton，有两个Label控件，一个TEXTBOX
其中点击RadioButton1时，两个Label控件，一个TEXTBOX可见，否则不可见，我的代码是protectedvoidPage_Load(objectsende...
其中点击RadioButton1时，两个Label控件，一个TEXTBOX可见，否则不可见，我的代码是
protected void Page_Load(object sender, EventArgs e)
{ if (RadioButton2.Checked)
{
Label8.Visible = true;
Label13.Visible = true;
TextBox7.Visible = true;
Response.Write(@"<script>alert('吖！')</script>");
else
{
Label8.Visible = false;
Label13.Visible = false;
TextBox7.Visible = false;
}
}
这样做没错，可是一直显示不出来，为什么？
我想在页面一点击RadioButton就出现，不用BUTTON按钮 展开
protected void Page_Load(object sender, EventArgs e)
{ if (RadioButton2.Checked)
{
Label8.Visible = true;
Label13.Visible = true;
TextBox7.Visible = true;
Response.Write(@"<script>alert('吖！')</script>");
else
{
Label8.Visible = false;
Label13.Visible = false;
TextBox7.Visible = false;
}
}
这样做没错，可是一直显示不出来，为什么？
我想在页面一点击RadioButton就出现，不用BUTTON按钮 展开
4个回答
展开全部
页面
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>
<!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>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:RadioButton ID="RadioButton1" runat="server"
oncheckedchanged="RadioButton1_CheckedChanged" AutoPostBack="true"/>
<br />
<asp:Label ID="Label1" runat="server" Text="Label" Visible="False"></asp:Label>
<asp:TextBox ID="TextBox1" runat="server" Visible="False"></asp:TextBox>
</div>
</form>
</body>
</html>
后台
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
public partial class Default2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void RadioButton1_CheckedChanged(object sender, EventArgs e)
{
if (this.RadioButton1.Checked)
{
this.Label1.Visible = true;
this.TextBox1.Visible = true;
}
else
{
this.Label1.Visible = false;
this.TextBox1.Visible = false;
}
}
}
ps：注意<asp:RadioButton ID="RadioButton1" runat="server"
oncheckedchanged="RadioButton1_CheckedChanged" AutoPostBack="true"/> radiobutton的autopostback属性，要设置成true
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>
<!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>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:RadioButton ID="RadioButton1" runat="server"
oncheckedchanged="RadioButton1_CheckedChanged" AutoPostBack="true"/>
<br />
<asp:Label ID="Label1" runat="server" Text="Label" Visible="False"></asp:Label>
<asp:TextBox ID="TextBox1" runat="server" Visible="False"></asp:TextBox>
</div>
</form>
</body>
</html>
后台
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
public partial class Default2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void RadioButton1_CheckedChanged(object sender, EventArgs e)
{
if (this.RadioButton1.Checked)
{
this.Label1.Visible = true;
this.TextBox1.Visible = true;
}
else
{
this.Label1.Visible = false;
this.TextBox1.Visible = false;
}
}
}
ps：注意<asp:RadioButton ID="RadioButton1" runat="server"
oncheckedchanged="RadioButton1_CheckedChanged" AutoPostBack="true"/> radiobutton的autopostback属性，要设置成true
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你点单选按钮后要回发到服务器才能生效,
你也可以写在按钮的单击事件里面,
我写的没问题
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
if (RadioButton1.Checked)
{
TextBox1.Visible = false;
}
else
{
TextBox1.Visible = true;
}
}
你也可以写在按钮的单击事件里面,
我写的没问题
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
if (RadioButton1.Checked)
{
TextBox1.Visible = false;
}
else
{
TextBox1.Visible = true;
}
}
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RadioButton2.Checked=true;吧
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if (RadioButton2.Checked)这个条件没有满足
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