HtmlControl.Attributes 屬性

  • 參考

定義

命名空間:
System.Web.UI.HtmlControls
組件:
System.Web.dll

取得 ASP.NET 網頁內伺服器控制項標記上所表示，所有成對屬性名稱和值的集合。

public:
 property System::Web::UI::AttributeCollection ^ Attributes { System::Web::UI::AttributeCollection ^ get(); };
[System.ComponentModel.Browsable(false)]
public System.Web.UI.AttributeCollection Attributes { get; }
[<System.ComponentModel.Browsable(false)>]
member this.Attributes : System.Web.UI.AttributeCollection
Public ReadOnly Property Attributes As AttributeCollection

屬性值

AttributeCollection

AttributeCollection 物件，包含 Web 網頁內的伺服器控制項標記所表示的所有屬性名稱和值配對。

屬性
BrowsableAttribute

範例

下列程式碼範例示範如何使用 Attributes 屬性來判斷 控制項的屬性 HtmlSelect 。

<%@ 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 xmlns="http://www.w3.org/1999/xhtml" >

<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="VB" AutoEventWireup="True" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >

<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>

備註

使用這個屬性以程式設計方式存取 HTML 伺服器控制項的屬性。 所有 HTML 伺服器控制項都會將其屬性儲存在 屬性中 Control.ViewState 。

HTML 屬性會由.NET Framework視為其所屬 HTML 伺服器控制項上的屬性。

如需屬性集合的其他資訊，請參閱 System.Web.UI.AttributeCollection 類別。

適用於

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