HtmlControl.Disabled 属性
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
获取或设置一个值，该值指示 HTML 服务器控件是否被禁用。
public:
property bool Disabled { bool get(); void set(bool value); };public bool Disabled { get; set; }[System.ComponentModel.TypeConverter(typeof(System.Web.UI.MinimizableAttributeTypeConverter))]
public bool Disabled { get; set; }member this.Disabled : bool with get, set[<System.ComponentModel.TypeConverter(typeof(System.Web.UI.MinimizableAttributeTypeConverter))>]
member this.Disabled : bool with get, setPublic Property Disabled As Boolean属性值
如果该控件被禁用，则为 true；否则为 false。 默认值是 false。
- 属性
示例
下面的代码示例演示如何使用 Disabled 属性以编程方式启用和禁用 HtmlInputButton 控件。
<%@ 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>HtmlControl Disabled Property Example</title>
<script language="C#" runat="server">
void Submit_Clicked(Object sender, EventArgs e)
{
Message.InnerHtml = "You clicked the submit button.";
}
void Enable_Clicked(Object sender, EventArgs e)
{
Message.InnerHtml = "";
Submit2.Disabled=!Submit2.Disabled;
}
</script>
</head>
<body>
<form id="form1" method="post" runat="server">
<h3>HtmlControl Disabled Property Example</h3>
<input id="Submit1"
type="submit"
value="Enable/Disable Submit Button"
onserverclick="Enable_Clicked"
runat="server"/>
<br /><br />
<input id="Submit2"
type="submit"
value="Submit"
onserverclick="Submit_Clicked"
runat="server"/>
<br /><br />
<span id="Message" 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>HtmlControl Disabled Property Example</title>
<script language="VB" runat="server">
Sub Submit_Clicked(sender As Object, e As EventArgs)
Message.InnerHtml = "You clicked the submit button."
End Sub 'Submit_Clicked
Sub Enable_Clicked(sender As Object, e As EventArgs)
Message.InnerHtml = ""
Submit2.Disabled = Not Submit2.Disabled
End Sub 'Enable_Clicked
</script>
</head>
<body>
<form id="form1" method="post" runat="server">
<h3>HtmlControl Disabled Property Example</h3>
<input id="Submit1"
type="submit"
value="Enable/Disable Submit Button"
onserverclick="Enable_Clicked"
runat="server"/>
<br /><br />
<input id="Submit2"
type="submit"
value="Submit"
onserverclick="Submit_Clicked"
runat="server"/>
<br /><br />
<span id="Message" runat="server"/>
</form>
</body>
</html>
注解
在浏览器中，禁用的元素或控件是只读的，并具有以下添加的限制：其值未随窗体提交，元素或控件无法接收焦点，当通过制表符导航文档时跳过该元素或控件。