HttpCapabilitiesBase.SupportsQueryStringInFormAction 属性
定义
获取一个值,该值指示浏览器是否在 HTML <form> 元素的 action 特性值中支持查询字符串。Gets a value indicating whether the browser supports a query string in the action attribute value of HTML <form> elements.
public:
virtual property bool SupportsQueryStringInFormAction { bool get(); };
public virtual bool SupportsQueryStringInFormAction { get; }
member this.SupportsQueryStringInFormAction : bool
Public Overridable ReadOnly Property SupportsQueryStringInFormAction As Boolean
属性值
如果浏览器支持 HTML <form> 元素的 action 特性中的查询字符串,则为 true;否则为 false。true if the browser supports a query string in the action attribute value of HTML <form> elements; otherwise, false. 默认值为 true。The default is true.
示例
下面的代码示例演示如何确定浏览器是否支持 HTML 元素的特性值中的查询字符串 action <form> 。The following code example shows how to determine whether the browser supports a query string in the value for the action attribute of HTML <form> elements.
<%@ page language="C#"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
void Page_Load(Object Sender, EventArgs e)
{
CheckBrowserCaps();
}
void CheckBrowserCaps()
{
String labelText = "";
System.Web.HttpBrowserCapabilities myBrowserCaps = Request.Browser;
if (((System.Web.Configuration.HttpCapabilitiesBase)myBrowserCaps).SupportsQueryStringInFormAction)
{
labelText = "Browser supports a query string in the value for the ACTION attribute of HTML FORM elements.";
}
else
{
labelText = "Browser does not support a query string in the value for the ACTION attribute of HTML FORM elements.";
}
Label1.Text = labelText;
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Browser Capabilities Sample</title>
</head>
<body>
<form runat="server" id="form1">
<div>
Browser Capabilities:
<p/><asp:Label ID="Label1" Runat="server" />
</div>
</form>
</body>
</html>
<%@ page language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
CheckBrowserCaps()
End Sub
Function CheckBrowserCaps()
Dim labelText As String = ""
Dim myBrowserCaps As System.Web.HttpBrowserCapabilities = Request.Browser
If (CType(myBrowserCaps, System.Web.Configuration.HttpCapabilitiesBase)).SupportsQueryStringInFormAction Then
labelText = "Browser supports a query string in the value for the ACTION attribute of HTML FORM elements."
Else
labelText = "Browser does not support a query string in the value for the ACTION attribute of HTML FORM elements."
End If
Label1.Text = labelText
End Function 'CheckBrowserCaps
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Browser Capabilities Sample</title>
</head>
<body>
<form runat="server" id="form1">
<div>
Browser Capabilities:
<p/><asp:Label ID="Label1" Runat="server" />
</div>
</form>
</body>
</html>
注解
如果 false 为,则在回发数据中发送查询字符串参数,作为 <input> 其 type 特性设置为的 HTML 元素 hidden 。If false, query string parameters are sent, in postback data, as HTML <input> elements with the type attributes set to hidden.