CssStyleCollection.Clear-Methode

Artikel
08/20/2007

Entfernt alle Formatelemente aus dem CssStyleCollection-Objekt.

Namespace: System.Web.UI
Assembly: System.Web (in system.web.dll)

Syntax

'Declaration
Public Sub Clear
'Usage
Dim instance As CssStyleCollection

instance.Clear

public void Clear ()

public:
void Clear ()

public void Clear ()

public function Clear ()

Beispiel

Im folgenden Beispiel wird veranschaulicht, wie mithilfe der Clear-Methode alle CSS-Formate programmgesteuert aus einem HtmlSelect-Steuerelement entfernt werden.

<%@ 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 SubmitBtn_Click(ByVal sender As Object, ByVal e As System.EventArgs)

    FirstSelect.Style.Clear()
    
  End Sub
  
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>CssStyleCollection Clear Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    Click the submit button to clear the formatting.
    <br />
    <select id="FirstSelect" 
            style="font: 12pt Arial; background-color:Yellow; color:Blue;"
            runat="server">
        <option >option 1</option>
        <option >option 2</option>
        <option >option 3</option>
    </select> 
    <input id="SubmitBtn" 
           value="Submit" 
           type="submit" 
           OnServerClick="SubmitBtn_Click"
           runat="server" /><br>
    </div>
    </form>
</body>
</html>

<%@ 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 SubmitBtn_Click(object sender, EventArgs e)
  {
    FirstSelect.Style.Clear();
  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>CssStyleCollection Clear Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    Click the submit button to clear the formatting.
    <br />
    <select id="FirstSelect" 
            style="font: 12pt Arial; background-color:Yellow; color:Blue;"
            runat="server">
        <option >option 1</option>
        <option >option 2</option>
        <option >option 3</option>
    </select> 
    <input id="SubmitBtn" 
           value="Submit" 
           type="submit" 
           OnServerClick="SubmitBtn_Click"
           runat="server" /><br>
    </div>
    </form>
</body>
</html>

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

<!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 SubmitBtn_Click(Object sender, EventArgs e)
  {
    FirstSelect.get_Style().Clear();
  }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>CssStyleCollection Clear Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    Click the submit button to clear the formatting.
    <br />
    <select id="FirstSelect" 
            style="font: 12pt Arial; background-color:Yellow; color:Blue;"
            runat="server">
        <option >option 1</option>
        <option >option 2</option>
        <option >option 3</option>
    </select> 
    <input id="SubmitBtn" 
           value="Submit" 
           type="submit" 
           OnServerClick="SubmitBtn_Click"
           runat="server" /><br>
    </div>
    </form>
</body>
</html>

Plattformen

Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.

Versionsinformationen

.NET Framework

Unterstützt in: 2.0, 1.1, 1.0

Siehe auch

Referenz

CssStyleCollection-Klasse
CssStyleCollection-Member
System.Web.UI-Namespace
Style
Remove

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