AdRotator.OnAdCreated(AdCreatedEventArgs) Metode
Definisi
Penting
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protected:
virtual void OnAdCreated(System::Web::UI::WebControls::AdCreatedEventArgs ^ e);
protected virtual void OnAdCreated (System.Web.UI.WebControls.AdCreatedEventArgs e);
abstract member OnAdCreated : System.Web.UI.WebControls.AdCreatedEventArgs -> unit
override this.OnAdCreated : System.Web.UI.WebControls.AdCreatedEventArgs -> unit
Protected Overridable Sub OnAdCreated (e As AdCreatedEventArgs)
Parameter
Yang AdCreatedEventArgs berisi data peristiwa.
Contoh
Contoh kode berikut menunjukkan cara menentukan dan mengodekan handler untuk peristiwa tersebut AdCreated . Ini mendapatkan URL yang terkait dengan iklan ketika AdRotator kontrol dibuat dan menampilkannya di bawah kontrol.
<%@ Page Language="C#" 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 runat="server">
<title>AdRotator Example</title>
</head>
<script language="c#" runat="server">
void AdCreated_Event(Object sender, AdCreatedEventArgs e)
{
Message.Text=e.NavigateUrl;
}
</script>
<body>
<form id="form1" runat="server">
<h3>AdRotator Example</h3>
<asp:AdRotator id="test1" runat="server"
AdvertisementFile = "~/App_Data/Ads.xml"
Borderwidth="1"
Target="_blank"
OnAdCreated="AdCreated_Event"/><br /><br />
<asp:label id="Message" runat="server"/>
</form>
</body>
</html>
<%@ 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 runat="server">
<title>AdRotator Example</title>
</head>
<script language="vb" runat="server">
Sub AdCreated_Event(sender As Object, e As AdCreatedEventArgs)
Message.Text=e.NavigateUrl
End Sub
</script>
<body>
<form id="form1" runat="server">
<h3>AdRotator Example</h3>
<asp:AdRotator id="test1" runat="server"
AdvertisementFile = "~/App_Data/Ads.xml"
Borderwidth="1"
Target="_blank"
OnAdCreated="AdCreated_Event"/><br /><br />
<asp:label id="Message" runat="server"/>
</form>
</body>
</html>
Contoh kode berikut menunjukkan cara memformat file XML yang berisi informasi iklan. Untuk informasi selengkapnya tentang file XML, lihat AdvertisementFile properti .
<Advertisements>
<Ad>
<ImageUrl>~/Images/image1.jpg</ImageUrl>
<Height>60</Height>
<Width>190</Width>
<NavigateUrl>http://www.microsoft.com</NavigateUrl>
<AlternateText>Microsoft Main Site</AlternateText>
<Impressions>80</Impressions>
<Keyword>Topic1</Keyword>
<Caption>This is the caption for Ad#1</Caption>
</Ad>
<Ad>
<ImageUrl>~/Images/image2.jpg</ImageUrl>
<Height>90</Height>
<Width>90</Width>
<NavigateUrl>http://www.wingtiptoys.com</NavigateUrl>
<AlternateText>Wingtip Toys</AlternateText>
<Impressions>80</Impressions>
<Keyword>Topic2</Keyword>
<Caption>This is the caption for Ad#2</Caption>
</Ad>
</Advertisements>
<%@ Page Language="C#" 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 runat="server">
<title>AdRotator AdCreated Example</title>
</head>
<script runat="server">
void Page_Load(Object sender, EventArgs e)
{
// Create an EventHandler delegate for the method you want to handle the event
// and then add it to the list of methods called when the event is raised.
Ad.AdCreated += new System.Web.UI.WebControls.AdCreatedEventHandler(this.AdCreated_Event);
}
void AdCreated_Event(Object sender, AdCreatedEventArgs e)
{
// Override the AlternateText value from the ads.xml file.
e.AlternateText = "Visit this site!";
}
</script>
<body>
<form id="form1" runat="server">
<h3>AdRotator AdCreated Example</h3>
Notice that the AlternateText property of the advertisement <br />
has been programmatically modified from the value in the XML <br />
file.
<br /><br />
<asp:AdRotator id="Ad" runat="server"
AdvertisementFile = "~/App_Data/Ads.xml"
Borderwidth="1"
Target="_blank"/>
</form>
</body>
</html>
<%@ 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 runat="server">
<title>AdRotator AdCreated Example</title>
</head>
<script runat="server">
Sub Page_Load(sender As Object, e As EventArgs)
' Create an EventHandler delegate for the method you want to handle the event
' and then add it to the list of methods called when the event is raised.
AddHandler Ad.AdCreated, AddressOf AdCreated_Event
End Sub
Sub AdCreated_Event(sender As Object, e As AdCreatedEventArgs)
' Override the AlternateText value from the ads.xml file.
e.AlternateText = "Visit this site!"
End Sub
</script>
<body>
<form id="form1" runat="server">
<h3>AdRotator AdCreated Example</h3>
Notice that the AlternateText property of the advertisement <br />
has been programmatically modified from the value in the XML <br />
file.
<br /><br />
<asp:AdRotator id="Ad" runat="server"
AdvertisementFile = "~/App_Data/Ads.xml"
Borderwidth="1"
Target="_blank"/>
</form>
</body>
</html>
Keterangan
Peristiwa AdCreated dimunculkan di server setelah AdRotator kontrol dibuat, tetapi sebelum halaman dirender. AdvertisementFile Jika properti diatur, AdCreated acara akan dimunculkan setelah iklan dipilih oleh AdRotator kontrol.
Menaikkan peristiwa memanggil metode penanganan peristiwa melalui delegasi. Untuk informasi selengkapnya, lihat Cara: Menggunakan Peristiwa dalam Aplikasi Formulir Web.
Catatan Bagi Inheritor
Saat mengambil alih di kelas turunan OnAdCreated(AdCreatedEventArgs) , pastikan untuk memanggil metode kelas OnAdCreated(AdCreatedEventArgs) dasar.