Label Label Label Constructor

定义

初始化 Label 类的新实例。Initializes a new instance of the Label class.

public:
 Label();
public Label ();
Public Sub New ()

示例

下面的示例演示如何创建和初始化Label控件的新实例。The following example shows how to create and initialize a new instance of the Label control.

备注

下面的代码示例使用单文件代码模型,如果直接复制到代码隐藏文件中,则可能无法正常工作。The following code sample uses the single-file code model and may not work correctly if copied directly into a code-behind file. 必须将此代码示例复制到扩展名为 .aspx 的空文本文件中。This code sample must be copied into an empty text file that has an .aspx extension. 有关 Web 窗体代码模型的详细信息,请参阅ASP.NET Web 窗体页代码模型For more information on the Web Forms code model, see ASP.NET Web Forms Page Code Model.

<%@ Page Language="C#" AutoEventWireup="True" %>
<!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>
    <title>Label Example</title>
<script language="C#" runat="server">

      void Button1_Click(Object Sender, EventArgs e) 
      {
         Label myLabel = new Label();
         myLabel.Text = "This is a new Label";    
         Page.Controls.Add(myLabel);
      }

   </script>
 
</head>
<body>

   <form id="form1" runat="server">

      <h3>Label Example</h3>
 
      <asp:Button id="Button1" 
           Text="Create and Show a Label" 
           OnClick="Button1_Click" 
           runat="server"/>
 
   </form>
</body>
</html>

<%@ Page Language="VB" AutoEventWireup="True" %>
<!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>
    <title>Label Example</title>
<script language="VB" runat="server">

      Sub Button1_Click(Sender As Object, e As EventArgs)
         Dim myLabel As New Label()
         myLabel.Text = "This is a new Label"
         Page.Controls.Add(myLabel)
      End Sub

   </script>
 
</head>
<body>

   <form id="form1" runat="server">

      <h3>Label Example</h3>
 
      <asp:Button id="Button1" 
           Text="Create and Show a Label" 
           OnClick="Button1_Click" 
           runat="server"/>
 
   </form>
</body>
</html>

注解

使用此构造函数创建并初始化Label类的新实例。Use this constructor to create and initialize a new instance of the Label class.

适用于