AttributeCollection.Keys Property
Definition
Important
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Gets a collection of keys to all attributes in the server control's AttributeCollection object.
public:
property System::Collections::ICollection ^ Keys { System::Collections::ICollection ^ get(); };
public System.Collections.ICollection Keys { get; }
member this.Keys : System.Collections.ICollection
Public ReadOnly Property Keys As ICollection
Property Value
The collection of keys.
Examples
The following example shows how to iterate through the Keys property of the AttributeCollection object for an HtmlSelect server control.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script language="C#" runat="server">
void Page_Load(Object Src, EventArgs e)
{
Message.InnerHtml +=
"<h5>The FirstSelect select box's " +
"Attribute collection contains:</h5>";
IEnumerator keys =
FirstSelect.Attributes.Keys.GetEnumerator();
while (keys.MoveNext())
{
String key = (String)keys.Current;
Message.InnerHtml += key + "=" +
FirstSelect.Attributes[key] + "<br />";
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Attribute Collection Sample</title>
</head>
<body>
<p>
<span id="Message" enableviewstate="false"
runat="server" />
</p>
<p>
Make a selection:
<select id="FirstSelect" runat="server"
style="padding:1; width:40; font: 16pt verdana;
background-color:Aqua; color:black;">
<option>This</option>
<option>That</option>
<option>Other</option>
</select>
</p>
</body>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script language="VB" runat="server">
Sub Page_Load(Src As Object, e As EventArgs)
Message.InnerHtml = Message.InnerHtml & _
"<h5>The FirstSelect select box's " & _
"Attribute collection contains:</h5>"
Dim keys As IEnumerator = _
FirstSelect.Attributes.Keys.GetEnumerator
Do While keys.MoveNext
Dim key As String = keys.Current
Message.InnerHtml = Message.InnerHtml & key _
& "=" & FirstSelect.Attributes(key) & "<br />"
Loop
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Attribute Collection Sample</title>
</head>
<body>
<p>
<span id="Message" enableviewstate="false"
runat="server" />
</p>
<p>
Make a selection:
<select id="FirstSelect" runat="server"
style="padding:1; width:40; font: 16pt verdana;
background-color:Aqua; color:black;">
<option>This</option>
<option>That</option>
<option>Other</option>
</select>
</p>
</body>
</html>
Remarks
This property contains all the keys that are in the AttributeCollection of an ASP.NET server control, whether you have added them programmatically with the Add method, or declaratively.
Applies to
See also
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