HttpCapabilitiesBase.CanRenderEmptySelects Property
Definition
Important
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Gets a value indicating whether the browser supports empty HTML <select>
elements.
public:
virtual property bool CanRenderEmptySelects { bool get(); };
public virtual bool CanRenderEmptySelects { get; }
member this.CanRenderEmptySelects : bool
Public Overridable ReadOnly Property CanRenderEmptySelects As Boolean
Property Value
true
if the browser supports empty HTML <select>
elements; otherwise, false
. The default is true
.
Examples
The following code example shows how to determine whether the browser supports empty HTML <select>
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).CanRenderEmptySelects)
{
labelText = "Browser supports empty select markup language statements.";
}
else
{
labelText = "Browser does not support empty select markup language statements.";
}
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)).CanRenderEmptySelects Then
labelText = "Browser supports empty select markup language statements."
Else
labelText = "Browser does not support empty select markup language statements."
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>
Applies to
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