HtmlInputImage.ServerClick Événement

  • Référence

Définition

Espace de noms:
System.Web.UI.HtmlControls
Assembly:
System.Web.dll

Se produit sur le serveur lorsqu'un utilisateur clique sur un contrôle HtmlInputImage.

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

Type d'événement

ImageClickEventHandler

Exemples

L’exemple de code suivant montre comment spécifier et coder un gestionnaire pour l’événement ServerClick afin de déterminer les coordonnées où l’utilisateur clique sur le HtmlInputImage contrôle.

<%@ 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>

Remarques

L’événement ServerClick est déclenché lorsque l’utilisateur clique sur un HtmlInputImage contrôle.

Pour plus d’informations sur la façon de gérer les événements, consultez gestion et déclenchement d’événements.

S’applique à

Voir aussi