共用方式為

AdRotator.OnPreRender(EventArgs) 方法

  • 參考

定義

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

藉由查閱檔案資料或呼叫使用者事件，取得用來呈現的廣告資訊。

protected:
 override void OnPreRender(EventArgs ^ e);
protected public:
 override void OnPreRender(EventArgs ^ e);
protected override void OnPreRender (EventArgs e);
protected internal override void OnPreRender (EventArgs e);
override this.OnPreRender : EventArgs -> unit
Protected Overrides Sub OnPreRender (e As EventArgs)
Protected Friend Overrides Sub OnPreRender (e As EventArgs)

參數

e
EventArgs

包含事件資料的 EventArgs 物件。

範例

下列程式碼範例示範如何覆寫 OnPreRender 方法，使其一律會在自訂 AdRotator 控制項中顯示框線。

<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS" %>
<%@ Page language="c#" %>
<!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>
    <title>CustomAdRotator - OnPreRender - C# Example</title>
  </head>
  <body>
    <form id="Form1" method="post" runat="server">
      <h3>Custom AdRotator - OnPreRender - C# Example</h3>

      <aspSample:CustomAdRotatorOnPreRender
        id="CustomAdRotator1"
        runat="server"
        Target="_blank"
        AdvertisementFile="~/App_Data/Ads.xml" />

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

<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VB.Controls" Assembly="Samples.AspNet.VB" %>
<%@ Page Language="vb" AutoEventWireup="true" %>
<!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>
    <title>CustomAdRotator - OnPreRender - VB.NET Example</title>
  </head>
  <body>
    <form id="Form1" method="post" runat="server">
    <h3>Custom AdRotator - OnPreRender - VB.NET Example</h3>
    <aspSample:CustomADRotatorOnPreRender id="CustomAdRotator1" runat="server" Target="_blank" AdvertisementFile="~/App_Data/Ads.xml" />
    </form>
  </body>
</html>

protected override void OnPreRender(System.EventArgs e)
{
    // Run the OnPreRender method on the base class.
    base.OnPreRender(e);

    // Always display the Ad with a border.
    this.BorderWidth =  System.Web.UI.WebControls.Unit.Point(1);
}

Protected Overrides Sub OnPreRender(ByVal e As System.EventArgs)
    ' Run the OnPreRender method on the base class.
    MyBase.OnPreRender(e)

    ' Always display the Ad with a border.
    Me.BorderWidth = System.Web.UI.WebControls.Unit.Point(1)
End Sub

適用於

另請參閱