HtmlInputImage.ServerClick 事件
定义
重要
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当用户单击 HtmlInputImage 控件时，在服务器上发生。
public:
event System::Web::UI::ImageClickEventHandler ^ ServerClick;public event System.Web.UI.ImageClickEventHandler ServerClick;member this.ServerClick : System.Web.UI.ImageClickEventHandler Public Custom Event ServerClick As ImageClickEventHandler 事件类型
示例
下面的代码示例演示如何为 ServerClick 事件指定和编码处理程序，以确定用户单击控件的 HtmlInputImage 坐标。
<%@ 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">
<script runat="server">
protected void ImageBtn_Click(object sender, ImageClickEventArgs e)
{
// Write the click coordinates to the Span1 element.
Span1.InnerText = "You clicked at (" + e.X.ToString() +
", " + e.Y.ToString() + ").";
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Click the Image </title>
</head>
<body>
<form id="form1" runat="server">
<h3>Click the Image </h3>
<input type="image"
alt="Image Alternate Text"
src="Image1.jpg"
onserverclick="ImageBtn_Click"
runat="server" id="Image1"/>
<br />
<br />
<span id="Span1"
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">
<script runat="server">
Sub ImageBtn_Click(ByVal Sender As Object, ByVal E As ImageClickEventArgs)
' Write the click coordinates to the Span1 element.
Span1.InnerText = "You clicked at (" & E.X.ToString() & _
", " & E.Y.ToString() & ")."
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Click the Image </title>
</head>
<body>
<form id="form1" runat="server">
<h3>Click the Image </h3>
<input type="image"
alt="Image Alternate Text"
src="Image1.jpg"
onserverclick="ImageBtn_Click"
runat="server"/>
<br />
<br />
<span id="Span1"
runat="server"/>
</form>
</body>
</html>
<%@ 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">
<script runat="server">
void ImageBtn_Click(Object sender, ImageClickEventArgs e)
{
// Display the coordinates of the position where the image
// was clicked.
Span1.InnerText = "You clicked at (" + e.X.ToString() +
", " + e.Y.ToString() + ").";
}
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.
Image1.ServerClick += new ImageClickEventHandler(this.ImageBtn_Click);
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>HtmlInputImage ServerClick Example </title>
</head>
<body>
<form id="form1" runat="server">
<h3>HtmlInputImage ServerClick Example </h3>
<input type="image"
id="Image1"
src="Image.jpg"
alt="Image"
runat="server"/>
<br />
<span id="Span1"
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">
<script runat="server">
Sub ImageBtn_Click(ByVal sender As Object, ByVal e As ImageClickEventArgs)
' Display the coordinates of the position where the image
' was clicked.
Span1.InnerText = "You clicked at (" & e.X.ToString() & _
", " & e.Y.ToString() & ")."
End Sub
Sub Page_Load(ByVal sender As Object, ByVal 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 Image1.ServerClick, AddressOf ImageBtn_Click
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>HtmlInputImage ServerClick Example </title>
</head>
<body>
<form id="form1" runat="server">
<h3>HtmlInputImage ServerClick Example </h3>
<input type="image"
id="Image1"
src="Image.jpg"
alt="Image"
runat="server"/>
<br />
<span id="Span1"
runat="server"/>
</form>
</body>
</html>
注解
ServerClick当用户单击控件HtmlInputImage时，将引发 事件。
有关如何处理事件的详细信息，请参阅 处理和引发事件。
