AttributeCollection.Keys Свойство

Определение

Возвращает коллекцию ключей всей атрибутов в объекте AttributeCollection серверного элемента управления.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

Значение свойства

Коллекция ключей.The collection of keys.

Примеры

В следующем примере показано, как выполнить итерацию Keys по свойству AttributeCollection объекта для HtmlSelect серверного элемента управления.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>

Комментарии

Это свойство содержит все ключи в AttributeCollection элементе управления сервера ASP.NET, добавлены ли они программно Add с помощью метода или декларативно.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.

Применяется к

Дополнительно