共用方式為


AttributeCollection.Item[String] 屬性

定義

取得或設定伺服器控制項的指定屬性值。

public:
 property System::String ^ default[System::String ^] { System::String ^ get(System::String ^ key); void set(System::String ^ key, System::String ^ value); };
public string this[string key] { get; set; }
member this.Item(string) : string with get, set
Default Public Property Item(key As String) As String

參數

key
String

屬性在集合中的位置。

屬性值

String

屬性值。

範例

下列範例示範如何在 Web 服務器控制項失去焦點時 TextBox ,設定動態 HTML onblur 屬性來執行 ECMAScript (JavaScript) 命令。

<!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" >
<head runat="server">
    <title>Attributes Property of a Web Control</title>
<script language="c#" runat="server">

       void Page_Load(Object sender, EventArgs e) {
          TextBox1.Attributes["onblur"]="javascript:alert('Hello! Focus lost from text box!!');";    
       }
   </script>

</head>
<body>
   <h3>Attributes Property of a Web Control</h3>
<form id="form1" runat="server">

   <asp:TextBox id="TextBox1" columns="54" 
    Text="Click here and then tab out of this text box" 
    runat="server"/>  

</form>
</body>
</html>
   
<!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" >
<head runat="server">
    <title>Attributes Property of a Web Control</title>
<script language="vb" runat="server">

       Sub Page_Load(sender As Object, e As EventArgs)
          TextBox1.Attributes("onblur")="javascript:alert('Hello! Focus lost from text box!!');"   
       End Sub
   </script>

</head>
<body>
   <h3>Attributes Property of a Web Control</h3>
<form id="form1" runat="server">

   <asp:TextBox id="TextBox1" columns="54" 
    Text="Click here and then tab out of this text box" 
    runat="server"/>  

</form>
</body>
</html>
   

備註

您可以在使用這個屬性的 ASP.NET 伺服器控制項中加入或擷取屬性。

適用於

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