Assembly: System.Web (in system.web.dll)
<ControlValuePropertyAttribute("Text")> _ Public Class Label Inherits WebControl Implements ITextControl
Dim instance As Label
[ControlValuePropertyAttribute("Text")] public class Label : WebControl, ITextControl
[ControlValuePropertyAttribute(L"Text")] public ref class Label : public WebControl, ITextControl
/** @attribute ControlValuePropertyAttribute("Text") */
public class Label extends WebControl implements ITextControl
ControlValuePropertyAttribute("Text") public class Label extends WebControl implements ITextControl
Not applicable.
Use the Label control to display text in a set location on the page. Unlike static text, you can customize the displayed text through the Text property.
You can also use the Literal and PlaceHolder controls to display text on the Web Forms page. However, unlike the Label control, these controls do not render any additional tags.
 Security Note: |
|---|
| This control can be used to display user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview (Visual Studio). |
Accessibility
The markup rendered by default for this control might not conform to accessibility standards such as the Web Content Accessibility Guidelines 1.0 (WCAG) priority 1 guidelines. For details about accessibility support for this control, see ASP.NET Controls and Accessibility.
The following example demonstrates how to create a Label control on a Web page.
 Note: |
|---|
| The following code sample uses the single-file code model and may not work correctly if copied directly into a code-behind file. This code sample must be copied into an empty text file that has an .aspx extension. For more information on the ASP.NET Web page code model, see ASP.NET Web Page Code Model. |
| Security Note: |
|---|
| This example has a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview (Visual Studio). |
<%@ 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 Button_Click(Sender As Object, e As EventArgs) Label1.Text = Server.HtmlEncode(Text1.Text) End Sub </script> </head> <body> <form id="Form1" runat="server"> <h3>Label Example</h3> <asp:Label id="Label1" Text="Label Control" runat="server"/> <p> <asp:TextBox id="Text1" Text="Copy this text to the label" Width="200px" runat="server" /> <asp:Button id="Button1" Text="Copy" OnClick="Button_Click" runat="server"/> </p> </form> </body> </html>
<%@ 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 Button_Click(Object Sender, EventArgs e) { Label1.Text = Server.HtmlEncode(Text1.Text); } </script> </head> <body> <form id="Form1" runat="server"> <h3>Label Example</h3> <asp:Label id="Label1" Text="Label Control" runat="server"/> <p> <asp:TextBox id="Text1" Text="Copy this text to the label" Width="200px" runat="server" /> <asp:Button id="Button1" Text="Copy" OnClick="Button_Click" runat="server"/> </p> </form> </body> </html>
- AspNetHostingPermission for operating in a hosted environment. Demand value: LinkDemand; Permission value: Minimal.
- AspNetHostingPermission for operating in a hosted environment. Demand value: InheritanceDemand; Permission value: Minimal.
System.Web.UI.Control
System.Web.UI.WebControls.WebControl
System.Web.UI.WebControls.Label
System.Web.UI.WebControls.BaseValidator
Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.