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HtmlButton.ServerClick Event

Occurs when the user clicks an HtmlButton control on the client Web page.

Namespace:  System.Web.UI.HtmlControls
Assembly:  System.Web (in System.Web.dll)

public event EventHandler ServerClick
<asp:HtmlButton OnServerClick="EventHandler" />

The ServerClick event is raised when the HtmlButton control is clicked. This server event causes a round trip to occur from the client to the server and back. It is deliberately different from the client-side OnClick event. If a conflict exists between code run with a ServerClick event and code run by a client-side OnClick event, the server-side event instructions will override the client-side code.

For more information about handling events, see Consuming Events.

The following code example demonstrates how to declaratively specify and code an event handler for the ServerClick event. When the HtmlButton control is clicked, the value entered in the text box is displayed.

<%@ 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" >
    <script language="C#" runat="server">

      protected void FancyBtn_Click(object sender, EventArgs e)
      {  
        Message.InnerHtml = "Your name is: " + Name.Value; 
      }

</script>

    <head runat="server">
    <title> Enter Name: </title>
</head>
<body>
          <form id="form1" method="post" runat="server">

            <h3> Enter Name: <input id="Name" type="text" size="40" runat="server" />
            </h3>

             <button onserverclick=" FancyBtn_Click" runat="server" id="BUTTON1">
               <b><i> I'm a fancy HTML 4.0 button </i> </b> 
             </button>


           <h1>
             <span id="Message" runat="server"></span>
           </h1>

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

The following code example demonstrates how to programmatically specify and code an event handler for the ServerClick event.


<%@ 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>
    <title> HtmlButton Constructor Example </title>
<script runat="server">

      void Page_Load(Object sender, EventArgs e)
      {

         // Create a new HtmlButton control.
         HtmlButton NewButtonControl = new HtmlButton();

         // Set the properties of the new HtmlButton control.
         NewButtonControl.ID = "NewButtonControl";
         NewButtonControl.InnerHtml = "Click Me";

         // 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.
         NewButtonControl.ServerClick += new System.EventHandler(this.Button_Click); 

         // Add the new HtmlButton control to the Controls collection of the
         // PlaceHolder control. 
         ControlContainer.Controls.Add(NewButtonControl);

      }

      void Button_Click(Object sender, EventArgs e)
      {

         // Display a simple message. 
         Message.InnerHtml = "Thank you for clicking the button.";

      }

   </script>

</head>

<body>

   <form id="form1" runat="server">

      <h3> HtmlButton Constructor Example </h3>

      <asp:PlaceHolder ID="ControlContainer"
           runat="server"/>

      <br /><br />

      <span id="Message"
            runat="server"/>

   </form>

</body>
</html>

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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