CssStyleCollection.Clear Метод

Определение

Удаляет все элементы стилей из объекта CssStyleCollection.Removes all style items from the CssStyleCollection object.

public:
 void Clear();
public void Clear ();
member this.Clear : unit -> unit
Public Sub Clear ()

Примеры

В следующем примере демонстрируется использование Clear метода для программного удаления всех стилей CSS HtmlSelect из элемента управления.The following example demonstrates how to use the Clear method to programmatically delete all CSS styles from an HtmlSelect control.

<%@ 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="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>

Применяется к

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