Gets a collection of all attribute name and value pairs expressed on a server control tag within the ASP.NET page.
(in System.Web.dll)
Visual Basic (Declaration)
<BrowsableAttribute(False)> _
Public ReadOnly Property Attributes As AttributeCollection
Dim instance As HtmlControl
Dim value As AttributeCollection
value = instance.Attributes
[BrowsableAttribute(false)]
public AttributeCollection Attributes { get; }
[BrowsableAttribute(false)]
public:
property AttributeCollection^ Attributes {
AttributeCollection^ get ();
}
public function get Attributes () : AttributeCollection
Use this property to programmatically access the attributes of the HTML server control. All HTML server controls store their attributes in the Control..::.ViewState property.
HTML attributes are treated by the .NET Framework as properties on the HTML server control to which they belong.
For additional information on the attributes collection, see the System.Web.UI..::.AttributeCollection class.
The following code example demonstrates how to use the Attributes property to determine the attributes of the HtmlSelect control.
<%@ 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 >
<script language="VB" runat="server">
Sub Page_Load(sender As Object, e As EventArgs)
Message.InnerHtml = "<h4>" & "The select box's attributes collection contains:" & "</h4>"
Dim keys As IEnumerator = Select1.Attributes.Keys.GetEnumerator()
While keys.MoveNext()
Dim key As String = CType(keys.Current, String)
Message.InnerHtml &= key & "=" & Select1.Attributes(key) & "<br />"
End While
End Sub 'Page_Load
</script>
<head runat="server">
<title>" & "The select box's attributes collection contains:" & "</title>
</head>
<body>
<form id="Form1" runat="server">
<h3>HtmlControl Attribute Collection Example</h3>
Make a selection:
<select id="Select1"
style="font: 12pt verdana;
background-color:yellow;
color:red;"
runat="server">
<option>Item 1</option>
<option>Item 2</option>
<option>Item 3</option>
</select>
<br />
<span id="Message" enableviewstate="false" runat="server" />
</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 >
<script language="C#" runat="server">
void Page_Load(Object sender, EventArgs e)
{
Message.InnerHtml = "<h4>The select box's attributes collection contains:</h4>";
IEnumerator keys = Select.Attributes.Keys.GetEnumerator();
while (keys.MoveNext())
{
String key = (String)keys.Current;
Message.InnerHtml += key + "=" + Select.Attributes[key] + "<br />";
}
}
</script>
<head runat="server">
<title>The select box's attributes collection contains:</title>
</head>
<body>
<form id="Form1" runat="server">
<h3>HtmlControl Attribute Collection Example</h3>
Make a selection:
<select id="Select"
style="font: 12pt verdana;
background-color:yellow;
color:red;"
runat="server">
<option>Item 1</option>
<option>Item 2</option>
<option>Item 3</option>
</select>
<br />
<span id="Message" enableviewstate="false" runat="server" />
</form>
</body>
</html>
<%@ Page Language="JScript" AutoEventWireup="True" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html >
<script language="jscript" runat="server">
function Page_Load(sender: Object, e: EventArgs){
Message.InnerHtml = "<h4>The select box's attributes collection contains:</h4>"
var keys: IEnumerator = Select1.Attributes.Keys.GetEnumerator()
while(keys.MoveNext()){
var key: String = String(keys.Current)
Message.InnerHtml += key + "=" + Select1.Attributes(key) + "<br />"
}
}
</script>
<head runat="server">
<title>The select box's attributes collection contains:</title>
</head>
<body>
<form id="Form1" runat="server">
<h3>HtmlControl Attribute Collection Example</h3>
Make a selection:
<select id="Select1"
style="font: 12pt verdana;
background-color:yellow;
color:red;"
runat="server">
<option>Item 1</option>
<option>Item 2</option>
<option>Item 3</option>
</select>
<br />
<span id="Message" enableviewstate="false" runat="server" />
</form>
</body>
</html>
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
Reference