HtmlGenericControl.TagName 屬性

  • 參考

定義

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

取得或設定由 HtmlGenericControl 控制項表示的 HTML 項目名稱。

public:
 property System::String ^ TagName { System::String ^ get(); void set(System::String ^ value); };
public string TagName { get; set; }
member this.TagName : string with get, set
Public Property TagName As String

屬性值

String

項目的標記名稱。

範例

下列程式碼範例示範如何使用 TagName 屬性，以程式設計方式將標記名稱從 「Body」 變更為 「Font」 和 back。

<%@ Page Language="C#" %>

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

<script runat="server">

  protected void BG_Button_Click(object sender, EventArgs e)
  {
    Body.Attributes["bgcolor"] = ColorSelect.Value;
  }

  protected void Font_Button_Click(object sender, EventArgs e)
  {
    Body.TagName = "Font";
    Body.Attributes["Color"] = ColorSelect.Value;
  }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
  <title>HtmlGenericControl Example</title> 
</head>
 
 <body id="Body" 
       runat="server"> 

     <h3>HtmlGenericControl Example</h3>

     <form id="form1" runat="server">
     <div>
       <br />
       Select a background color for the page: <br />
       <select id="ColorSelect" 
               runat="server">
           <option>White</option>
           <option>LightBlue</option>
           <option>LightGreen</option>
           <option>Yellow</option>
       </select>
       <br />
       <input type="submit" 
              runat="server"
              value="Change Background Color" 
              onserverclick="BG_Button_Click" id="Submit1" />
       <input type="submit" 
              runat="server" 
              value="Change Font Color" 
              onserverclick="Font_Button_Click" id="Submit2" />
     </div>
     </form>
 
 </body>
 </html>

<%@ Page Language="VB" %>

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

<script runat="server">
  
  Protected Sub BG_Button_Click(ByVal sender As Object, ByVal e As System.EventArgs)

    Body.Attributes("bgcolor") = ColorSelect.Value

  End Sub

  Protected Sub Font_Button_Click(ByVal sender As Object, ByVal e As System.EventArgs)
    
    Body.TagName = "Font"
    Body.Attributes("Color") = ColorSelect.Value

  End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
  <title>HtmlGenericControl Example</title> 
</head>
 
 <body id="Body" 
       runat="server"> 

     <h3>HtmlGenericControl Example</h3>

     <form id="form1" runat="server">
     <div> 
       <br />
       Select a background color for the page: <br />
       <select id="ColorSelect" 
               runat="server">
           <option>White</option>
           <option>LightBlue</option>
           <option>LightGreen</option>
           <option>Yellow</option>
       </select>
       <br />
       <input type="submit" 
              runat="server"
              value="Change Background Color" 
              onserverclick="BG_Button_Click" id="Submit1" />
       <input type="submit" 
              runat="server" 
              value="Change Font Color" 
              onserverclick="Font_Button_Click" id="Submit2" />
     </div>
     </form>
 
 </body>
 </html>

備註

使用這個屬性，以程式設計方式判斷 HTML 伺服器控制項的專案名稱。 例如， TagName 伺服器端 <span id="MySpan" runat= "server"/> 元素的 屬性包含 「span」 值。

適用於