แก้ไข

แชร์ผ่าน

HtmlImage.Alt Property

  • Reference

Definition

Namespace:
System.Web.UI.HtmlControls
Assembly:
System.Web.dll

Gets or sets the alternative caption the browser displays if an image is unavailable or currently downloading and not yet finished.

public:
 property System::String ^ Alt { System::String ^ get(); void set(System::String ^ value); };
public string Alt { get; set; }
member this.Alt : string with get, set
Public Property Alt As String

Property Value

String

A string that contains the alternative caption for the browser to use when the image is unavailable.

Examples

The following code example demonstrates how to use the Alt property to specify the caption to display when the image specified by the Src property is unavailable.

<%@ 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>HtmlImage Example</title>
</head>
 
 <body>
 
    <form id="form1" runat="server">
 
       <h3>HtmlImage Example</h3>
     
       <img id ="Image1"
            src="Image1.jpg"
            alt="Image 1"
            runat="server"
            style="width:500; height:226; border:5; text-align:center" />
    
    </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>HtmlImage Example</title>
</head>
 
 <body>
 
    <form id="form1" runat="server">
 
       <h3>HtmlImage Example</h3>
     
       <img id ="Image1"
            src="Image1.jpg"
            alt="Image 1"
            runat="server"
            style="width:500; height:226; border:5; text-align:center" />
    
    </form>
 
 </body>
 </html>

Remarks

Use this property to specify the caption displayed when the image specified by the Src property is unavailable. On newer browsers, this caption also appears as a ToolTip.

Applies to

See also