ASP.NET C# 将文本框中的值写入标签：初学者简单
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ASP.NET C# write value in text box to a label: beginner simple
提问by Justin
I am trying to find a very simple example for the syntax to simple write the value entered into a text box, and place that value into a label onclick. As basic as it can get I suppose. I only mentioned asp.net because I would like to do that with an aspx page. Thanks!
我试图找到一个非常简单的语法示例，将输入的值简单地写入文本框中，然后将该值放入标签 onclick 中。我想尽可能基本。我只提到了 asp.net，因为我想用一个 aspx 页面来做到这一点。谢谢！
采纳答案by Mutu Yolbulan
in the aspx page
在aspx页面中
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
and in the cs file
并在cs文件中
protected void Button1_Click(object sender, EventArgs e)
{
Label1.Text = TextBox1.Text;
}
回答by Alessandro
Labeldoes not have a server OnClickevent.
Label没有服务器OnClick事件。
You could use a Button:
你可以使用一个按钮：
void [ButtonID]_OnClick(object sender, EventArgs e)
{
[LabelID].Text = [TextBoxID].Text;
}
Replace the values inside square brackets with the real IDs.
用真实 ID 替换方括号内的值。
Or you could use Javascript, but that's another story! :)
或者您可以使用 Javascript，但那是另一回事了！:)
回答by Jduv
The page:
这一页：
<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._Default" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<asp:Label ID="MyLabel" runat="server">Hello World</asp:Label>
<br />
<asp:TextBox ID="MyTextBox" runat="server" />
<br />
<asp:Button ID="MyBtn" runat="server" Text="Click Me" OnClick="MyBtn_Clicked" />
</asp:Content>
The code behind:
背后的代码：
namespace WebApplication1
{
using System;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void MyBtn_Clicked(object sender, EventArgs args)
{
this.MyLabel.Text = this.MyTextBox.Text;
}
}
}
回答by raehtytr
namespace WebApplication1
{
using System;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void MyBtn_Clicked(object sender, EventArgs args)
{
this.MyLabel.Text = this.MyTextBox.Text;
}
}
}
回答by Ike Harrison
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class CodeBehind : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
Label1.Text = TextBox1.Text;
}
}
