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HtmlGenericControl.TagName Eigenschaft

Definition

Namespace:
System.Web.UI.HtmlControls
Assembly:
System.Web.dll

Dient zum Abrufen oder Festlegen des Namens des HTML-Elements, das durch das HtmlGenericControl Steuerelement dargestellt wird.

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

Eigenschaftswert

String

Der Tagname eines Elements.

Beispiele

Im folgenden Codebeispiel wird veranschaulicht, wie Die TagName Eigenschaft verwendet wird, um einen Tagnamen programmgesteuert von "Body" in "Font" und back zu ändern.

<%@ 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>

Hinweise

Verwenden Sie diese Eigenschaft, um den Elementnamen des HTML-Serversteuerelements programmgesteuert zu bestimmen. Beispielsweise enthält die TagName Eigenschaft für ein serverseitiges <span id="MySpan" runat= "server"/> Element den Wert "span".

Gilt für: